| Common Name | Scientific Name | Code |
| n/a | Cotyledon barbeyi Schweinf. ex Baker | COBA15 |
| n/a | Crassula perfoliata L. | CRPE18 |
| n/a | Crassula perfoliata L. var. minor (Haw.) G. D. Rowley | CRPEM |
| n/a | Crassula sarcocaulis Eckl. & Zeyh. | CRSA14 |
| n/a | Dudleya albiflora Rose | DUAL2 |
| n/a | Dudleya anomala (Davidson) Moran | DUAN2 |
| n/a | Dudleya brittonii D. A. Johans. | DUBR3 |
| n/a | Hylotelephium cauticola (Praeger) H. Ohba | HYCA22 |
| n/a | Hylotelephium sieboldii (Sweet ex Hook.) H. Ohba. [excluded] | HYSI3 |
| n/a | Kalanchoe laxiflora Baker [excluded] | KALA4 |
| n/a | Kalanchoe marmorata Baker [excluded] | KAMA3 |
| n/a | Phedimus Raf. | PHEDI |
| n/a | Phedimus selskianus (Regel & Maack) 't Hart | PHSE19 |
| n/a | Sedum diffusum S. Wats. [excluded] | SEDI13 |
| n/a | Sedum forsterianum Sm. | SEFO3 |
| n/a | Sedum rubrotinctum R. T. Clausen | SERU8 |
| n/a | Villadia misera (Lindl.) R.T. Clausen [excluded] | VIMI10 |
| Abrams's liveforever | Dudleya abramsii Rose | DUAB |
| Abrams's liveforever | Dudleya abramsii Rose ssp. abramsii | DUABA |
| aeonium | Aeonium Webb & Berth. | AEONI |
| Aeonium arboreum | Aeonium arboreum (L.) Webb & Berthel. var. arboreum (L.) Webb & Berthel. [superfluous autonym] | AEARA |
| Aizoon stonecrop | Sedum aizoon L. | SEAI80 |
| Allegheny stonecrop | Hylotelephium telephioides (Michx.) H. Ohba | HYTE9 |
| Beauverd's widow's-thrill | Kalanchoe beauverdii Hamlet | KABE |
| Blochman's liveforever | Dudleya blochmaniae (Eastw.) Moran | DUBL |
| Blochman's liveforever | Dudleya blochmaniae (Eastw.) Moran ssp. blochmaniae | DUBLB |
| Blochman's liveforever | Dudleya blochmaniae (Eastw.) Moran ssp. insularis (Moran) Moran | DUBLI |
| bright green dudleya | Dudleya virens (Rose) Moran | DUVI |
| bright green dudleya | Dudleya virens (Rose) Moran ssp. hassei (Rose) Moran | DUVIH |
| bright green dudleya | Dudleya virens (Rose) Moran ssp. insularis (Rose) Moran | DUVII |
| bright green dudleya | Dudleya virens (Rose) Moran ssp. virens | DUVIV |
| broadleaf stonecrop | Sedum spathulifolium Hook. | SESP |
| broadleaf stonecrop | Sedum spathulifolium Hook. ssp. pruinosum (Britt.) Clausen & Uhl | SESPP |
| broadleaf stonecrop | Sedum spathulifolium Hook. ssp. spathulifolium | SESPS |
| candleholder liveforever | Dudleya candelabrum Rose | DUCA2 |
| Canyon Creek stonecrop | Sedum paradisum (Denton) Denton | SEPA15 |
| canyon liveforever | Dudleya cymosa (Lem.) Britt. & Rose | DUCY |
| canyon liveforever | Dudleya cymosa (Lem.) Britt. & Rose ssp. agourensis K. Nakai | DUCYA |
| canyon liveforever | Dudleya cymosa (Lem.) Britt. & Rose ssp. cymosa | DUCYC3 |
| canyon liveforever | Dudleya cymosa (Lem.) Britt. & Rose ssp. paniculata (Jepson) K. Nakai | DUCYP |
| canyon liveforever | Dudleya cymosa (Lem.) Britt. & Rose ssp. pumila K. Nakai | DUCYP2 |
| Cape Province pygmyweed | Crassula multicava Lem. | CRMU10 |
| cathedral bells | Kalanchoe pinnata (Lam.) Pers. | KAPI |
| Caucasian stonecrop | Phedimus spurius (M. Bieb.) 't Hart | PHSP9 |
| chalk dudleya | Dudleya pulverulenta (Nutt.) Britt. & Rose | DUPU |
| chalk dudleya | Dudleya pulverulenta (Nutt.) Britt. & Rose ssp. arizonica (Rose) Moran | DUPUA2 |
| chalk dudleya | Dudleya pulverulenta (Nutt.) Britt. & Rose ssp. pulverulenta | DUPUP |
| chandelier plant | Kalanchoe delagoensis Ecklon & Zeyh. | KADE |
| Christmastree plant | Kalanchoe laciniata (L.) DC. | KALA3 |
| cliff stonecrop | Sedum glaucophyllum Clausen | SEGL3 |
| Coast Range stonecrop | Sedum radiatum S. Wats. | SERA4 |
| Coast Range stonecrop | Sedum radiatum S. Wats. ssp. ciliosum (T.J. Howell) Clausen | SERAC |
| Coast Range stonecrop | Sedum radiatum S. Wats. ssp. depauperatum Clausen | SERAD |
| Coast Range stonecrop | Sedum radiatum S. Wats. ssp. radiatum | SERAR |
| coastal stonecrop | Lenophyllum texanum (J.G. Sm.) Rose | LETE4 |
| Cockerell's stonecrop | Sedum cockerellii Britt. | SECO |
| common houseleek | Sempervivum tectorum L. | SETE5 |
| Conejo dudleya | Dudleya abramsii Rose ssp. parva (Rose & A. Davids.) Bartel | DUABP |
| Congdon's mock stonecrop | Sedella congdonii (Eastw.) Britt. & Rose | SECO6 |
| Crassula aquatica | Bulliarda aquatica (L.) DC. | BUAQ |
| Crassula aquatica | Hydrophila aquatica (L.) House | HYAQ |
| Crassula aquatica | Tillaea angustifolia Nutt. | TIAN2 |
| Crassula aquatica | Tillaea aquatica L. | TIAQ3 |
| Crassula aquatica | Tillaea ascendens Eat. | TIAS |
| Crassula aquatica | Tillaeastrum aquaticum (L.) Britt. | TIAQ2 |
| Crassula connata var. connata | Crassula erecta (Hook. & Arn.) Berger | CRER2 |
| Crassula connata var. connata | Tillaea erecta Hook. & Arn. | TIER3 |
| Crassula connata var. connata | Tillaea minima Gay | TIMI |
| Crassula connata var. connata | Tillaea rubescens Kunth | TIRU2 |
| Crassula connata var. eremica | Tillaea erecta Hook. & Arn. ssp. eremica (Jepson) Wiggins | TIERE |
| Crassula connata var. eremica | Tillaea erecta Hook. & Arn. var. eremica Jepson | TIERE2 |
| Crassula connata var. subsimplex | Tillaea leptopetala Benth. | TILE3 |
| Crassula connata var. subsimplex | Tillaea minima Miers ex Hook. & Arn. var. subsimplex S. Wats. | TIMIS |
| Crassula drummondii | Hydrophila drummondii (Torr. & Gray) House | HYDR2 |
| Crassula drummondii | Tillaea aquatica L. var. drummondii (Torr. & Gray) Jepson | TIAQD |
| Crassula drummondii | Tillaea drummondii Torr. & Gray | TIDR5 |
| Crassula drummondii | Tillaeastrum drummondii (Torr. & Gray) Britt. | TIDR2 |
| Crassula longipes | Crassula drummondii sensu (Torr. & Gray) Fedde p.p. | CRDR2 |
| Crassula longipes | Hydrophila drummondii sensu (Torr. & Gray) House p.p. | HYDR3 |
| Crassula longipes | Tillaea aquatica L. var. drummondii sensu (Torr. & Gray) Jepson p.p. | TIAQD2 |
| Crassula longipes | Tillaea longipes Rose | TILO2 |
| Crassula longipes | Tillaeastrum drummondii sensu (Torr. & Gray) Britt. p.p. | TIDR4 |
| Crassula perfoliata var. minor | Crassula falcata Wendl. | CRFA6 |
| Crassula saginoides | Hydrophila vaillantii sensu House, non (Willd.) Roth | HYVA2 |
| Crassula saginoides | Tillaea angustifolia Nutt. var. bolanderi S. Wats. | TIANB |
| Crassula saginoides | Tillaea bolanderi (S. Wats.) Greene | TIBO |
| Crassula saginoides | Tillaea drummondii Torr. & Gray var. bolanderi (S. Wats.) Jepson | TIDRB |
| Crassula saginoides | Tillaea vaillantii sensu Gray, non Willd. | TIVA3 |
| Crassula saginoides | Tillaeastrum pringlei Rose | TIPR2 |
| Crassula saginoides | Tillaeastrum vaillantii auct. non (Willd.) Britt. [misapplied] | TIVA4 |
| Crassula solierii | Tillaea solierii C. Gay | TISO |
| Crassula tillaea | Crassula muscosa (L.) Roth | CRMU8 |
| Crassula tillaea | Tillaea muscosa L. | TIMU2 |
| Crassula viridis | Tillaea viridis S. Wats. | TIVI |
| Crassula viridis | Tillaeastrum viride (S. Wats.) Britt. | TIVI2 |
| cream stonecrop | Sedum oregonense (S. Wats.) M.E. Peck | SEOR2 |
| curvedleaf stonecrop | Sedum rupicola G.N. Jones | SERU3 |
| Davidson's stonecrop | Sedum niveum A. Davids. | SENI |
| desert savior | Echeveria strictiflora Gray | ECST |
| devil's backbone | Kalanchoe daigremontiana Hamet & Perrier | KADA |
| diamorpha | Diamorpha Nutt. | DIAMO |
| Diamorpha smallii | Diamorpha cymosa (Nutt.) Britt. ex Small | DICY3 |
| Diamorpha smallii | Sedum cymosum (Nutt.) Fr?d. | SECY5 |
| Diamorpha smallii | Sedum smallii (Britt. ex Small) Ahles | SESM2 |
| ditch stonecrop | Penthorum sedoides L. | PESE6 |
| dudleya | Dudleya Britt. & Rose | DUDLE |
| Dudleya abramsii ssp. bettinae | Dudleya bettinae Hoover | DUBE |
| Dudleya abramsii ssp. parva | Dudleya parva Rose & A. Davids. | DUPA |
| Dudleya attenuata ssp. orcuttii | Stylophyllum orcuttii Rose | STOR2 |
| Dudleya attenuata ssp. orcuttii | Stylophyllum parishii Britt. | STPA11 |
| Dudleya blochmaniae ssp. blochmaniae | Hasseanthus blochmaniae (Eastw.) Rose | HABL4 |
| Dudleya blochmaniae ssp. brevifolia | Dudleya brevifolia (Moran) Moran | DUBR |
| Dudleya caespitosa | Dudleya cespitosa (Haw.) Britt. & Rose [orthographic variant] | DUCE |
| Dudleya caespitosa | Dudleya cotyledon (Jacq.) Britt. & Rose | DUCO3 |
| Dudleya calcicola | Dudleya abramsii Rose ssp. calcicola (Bartel & Shevock) K. Nakai | DUABC |
| Dudleya collomiae | Dudleya saxosa (M.E. Jones) Britt. & Rose ssp. collomiae (Rose ex Morton) Moran | DUSAC |
| Dudleya collomiae | Echeveria collomiae (Rose ex Morton) Kearney & Peebles | ECCO8 |
| Dudleya cymosa ssp. cymosa | Dudleya angustiflora Rose | DUAN |
| Dudleya cymosa ssp. cymosa | Dudleya cymosa (Lem.) Britt. & Rose ssp. gigantea (Rose) Moran | DUCYG |
| Dudleya cymosa ssp. cymosa | Dudleya gigantea Rose | DUGI |
| Dudleya cymosa ssp. cymosa | Dudleya laxa (Lindl.) Britt. & Rose | DULA5 |
| Dudleya cymosa ssp. cymosa | Dudleya nevadensis (S. Wats.) Britt. & Rose | DUNE2 |
| Dudleya cymosa ssp. cymosa | Echeveria cymosa Lem. | ECCY |
| Dudleya cymosa ssp. paniculata | Dudleya humilis Rose | DUHU |
| Dudleya cymosa ssp. paniculata | Echeveria diaboli Berger | ECDI |
| Dudleya densiflora | Stylophyllum nudicaule Abrams | STNU3 |
| Dudleya edulis | Stylophyllum edule (Nutt.) Britt. & Rose | STED2 |
| Dudleya farinosa | Dudleya compacta Rose | DUCO4 |
| Dudleya farinosa | Dudleya eastwoodiae Rose | DUEA |
| Dudleya farinosa | Dudleya septentrionalis Rose | DUSE2 |
| Dudleya lanceolata | Dudleya brauntonii Rose | DUBR2 |
| Dudleya lanceolata | Dudleya congesta Rose | DUCO5 |
| Dudleya lanceolata | Dudleya cymosa (Lem.) Britt. & Rose ssp. minor (Rose) Moran | DUCYM2 |
| Dudleya lanceolata | Dudleya goldmanii Rose | DUGO |
| Dudleya lanceolata | Dudleya lurida Rose | DULU |
| Dudleya lanceolata | Dudleya nevadensis (S. Wats.) Britt. & Rose ssp. minor (Rose) Abrams | DUNEM |
| Dudleya multicaulis | Hasseanthus elongatus Rose | HAEL3 |
| Dudleya pulverulenta ssp. arizonica | Dudleya arizonica Rose | DUAR2 |
| Dudleya pulverulenta ssp. arizonica | Dudleya pulverulenta (Nutt.) Britt. & Rose var. arizonica (Rose) Welsh | DUPUA |
| Dudleya pulverulenta ssp. arizonica | Echeveria arizonica (Rose) Kearney & Peebles | ECAR |
| Dudleya pulverulenta ssp. arizonica | Echeveria pulverulenta Nutt. ssp. arizonica (Rose) Clokey | ECPUA2 |
| Dudleya pulverulenta ssp. pulverulenta | Echeveria pulverulenta Nutt. | ECPU3 |
| Dudleya saxosa ssp. aloides | Dudleya alainiae Reiser | DUAL |
| Dudleya saxosa ssp. aloides | Dudleya delicata Rose | DUDE4 |
| Dudleya saxosa ssp. aloides | Dudleya grandiflora Rose | DUGR3 |
| Dudleya setchellii | Dudleya cymosa (Lem.) Britt. & Rose ssp. setchellii (Jepson) Moran | DUCYS |
| Dudleya traskiae | Stylophyllum traskiae Rose | STTR6 |
| Dudleya variegata | Hasseanthus variegatus (S. Wats.) Rose | HAVA2 |
| Dudleya virens ssp. hassei | Dudleya hassei (Rose) Moran | DUHA |
| Dudleya virens ssp. hassei | Stylophyllum hassei Rose | STHA3 |
| Dudleya virens ssp. insularis | Stylophyllum insulare Rose | STIN8 |
| Dudleya virens ssp. virens | Stylophyllum albidum Rose | STAL7 |
| Dudleya virens ssp. virens | Stylophyllum virens Rose | STVI12 |
| Dudleya viscida | Stylophyllum viscidum (S. Wats.) Britt. & Rose | STVI9 |
| dwarf stonecrop | Sedum nanifolium Fr?d. | SENA |
| echeveria | Echeveria DC. | ECHEV |
| Echeveria strictiflora | Cotyledon strictiflora (Gray) Baker | COST14 |
| elf orpine | Diamorpha smallii Britt. ex Small | DISM3 |
| European stonecrop | Sedum ochroleucum Chaix | SEOC |
| Feather River stonecrop | Sedum albomarginatum Clausen | SEAL2 |
| fingertips | Dudleya edulis (Nutt.) Moran | DUED |
| garden stonecrop | Hylotelephium erythrostictum (Miq.) H. Ohba | HYER3 |
| Gila County liveforever | Dudleya collomiae Rose ex Morton | DUCO |
| goldmoss stonecrop | Sedum acre L. | SEAC |
| granite stonecrop | Sedum pusillum Michx. | SEPU6 |
| Graptopetalum bartramii | Echeveria bartramii (Rose) Kearney & Peebles | ECBA4 |
| Graptopetalum rusbyi | Cotyledon rusbyi Greene | CORU9 |
| Graptopetalum rusbyi | Dudleya rusbyi (Greene) Britt. & Rose | DURU |
| Graptopetalum rusbyi | Echeveria rusbyi (Greene) A. Nels. & J.F. Macbr. | ECRU2 |
| Graptopetalum rusbyi | Graptopetalum orpetii E. Walther | GROR |
| green cockscomb | Sedum praealtum DC. | SEPR2 |
| Greene's liveforever | Dudleya greenei Rose | DUGR |
| Havard's stonecrop | Sedum havardii Rose | SEHA |
| Haworth's aeonium | Aeonium haworthii Webb & Berth. | AEHA2 |
| Heckner's stonecrop | Sedum laxum (Britt.) Berger ssp. heckneri (M.E. Peck) Clausen | SELAH |
| hen and chickens | Jovibarba heuffelii (Schott) A.& D. L?ve | JOHE |
| houseleek | Sempervivum L. | SEMPE |
| Huachuca Mountain stonecrop | Sedum stelliforme S. Wats. | SEST |
| Hylotelephium cauticola | Sedum cauticola Praeger | SECA21 |
| Hylotelephium erythrostictum | Sedum alboroseum Baker | SEAL3 |
| Hylotelephium erythrostictum | Sedum erythrostictum Miq. | SEER6 |
| Hylotelephium sieboldii | Sedum sieboldii Sweet ex Hook. [excluded] | SESI6 |
| Hylotelephium spectabile | Sedum spectabile Boreau | SESP6 |
| Hylotelephium telephioides | Anacampseros telephioides (Michx.) Haw. | ANTE4 |
| Hylotelephium telephioides | Sedum telephioides Michx. | SETE |
| Hylotelephium telephium ssp. fabaria | Sedum fabaria W.D.J. Koch | SEFA2 |
| Hylotelephium telephium ssp. fabaria | Sedum telephium L. ssp. fabaria (W.D.J. Koch) Schinz & R. Keller | SETEF |
| Hylotelephium telephium ssp. telephium | Sedum purpureum (L.) J.A. Schultes | SEPU5 |
| Hylotelephium telephium ssp. telephium | Sedum telephium L. | SETE2 |
| Hylotelephium telephium ssp. telephium | Sedum telephium L. ssp. purpureum (L.) Schinz & Keller | SETEP |
| Hylotelephium telephium ssp. telephium | Sedum triphyllum (Haw.) S.F. Gray | SETR5 |
| jade plant | Crassula ovata (P. Mill.) Druce | CROV3 |
| Jenny's stonecrop | Sedum reflexum L. | SERE4 |
| jovibarba | Jovibarba Opiz | JOVIB |
| Jovibarba heuffelii | Sempervivum heuffelii Schott | SEHE |
| Kalanchoe daigremontiana | Bryophyllum daigremontianum (Hamet & Perrier) Berger | BRDA |
| Kalanchoe delagoensis | Bryophyllum tubiflorum Harvey | BRTU |
| Kalanchoe delagoensis | Kalanchoe tubiflora (Harvey) Hamet | KATU |
| Kalanchoe delagoensis | Kalanchoe verticillata Elliot | KAVE |
| Kalanchoe fedtschenkoi | Bryophyllum fedtschenkoi (Hamet & Perrier) hort. | BRFE7 |
| Kalanchoe integra var. crenata | Kalanchoe crenata (Andr.) Haw. | KACR |
| Kalanchoe integra var. verea | Kalanchoe brasiliensis Camb. | KABR |
| Kalanchoe laxiflora | Bryophyllum crenatum Baker [excluded] | BRCR8 |
| Kalanchoe marmorata | Kalanchoe grandiflora A. Rich., non Wallich ex Wight & Arn. [excluded] | KAGR4 |
| Kalanchoe pinnata | Bryophyllum pinnatum (Lam.) Oken | BRPI6 |
| Kalanchoe pinnata | Cotyledon pinnata Lam. | COPI4 |
| Laguna Beach liveforever | Dudleya stolonifera Moran | DUST |
| Lake County mock stonecrop | Sedella leiocarpa H.K. Sharsmith | SELE7 |
| lanceleaf liveforever | Dudleya lanceolata (Nutt.) Britt. & Rose | DULA |
| lavender scallops | Kalanchoe fedtschenkoi Hamet & Perrier | KAFE |
| leatherpetal | Graptopetalum Rose | GRAPT |
| ledge stonecrop | Rhodiola integrifolia Raf. | RHIN11 |
| ledge stonecrop | Rhodiola integrifolia Raf. ssp. integrifolia | RHINI |
| ledge stonecrop | Rhodiola integrifolia Raf. ssp. procera (Clausen) Kartesz | RHINP |
| Leedy's stonecrop | Rhodiola integrifolia Raf. ssp. leedyi (Rosendahl & Moore) Kartesz | RHINL |
| Leiberg stonecrop | Sedum leibergii Britt. | SELE |
| lenophyllum | Lenophyllum Rose | LENOP |
| Lenophyllum texanum | Sedum texanum J.G. Sm. | SETE11 |
| Lenophyllum texanum | Villadia texana (J.G. Sm.) Rose | VITE3 |
| limestone liveforever | Dudleya calcicola Bartel & Shevock | DUCA3 |
| Madagascar widow's-thrill | Kalanchoe blossfeldiana Poelln. | KABL |
| manystem liveforever | Dudleya multicaulis (Rose) Moran | DUMU |
| marcescent dudleya | Dudleya cymosa (Lem.) Britt. & Rose ssp. marcescens Moran | DUCYM |
| Mexican stonecrop | Sedum mexicanum Britt. | SEME3 |
| mock stonecrop | Sedella Britt. & Rose | SEDEL |
| moss pygmyweed | Crassula tillaea Lester-Garland | CRTI |
| Mt. Hamilton mock stonecrop | Sedella pentandra H.K. Sharsmith | SEPE3 |
| munchkin liveforever | Dudleya gnoma S. McCabe | DUGN |
| needle stonecrop | Sedum lineare Thunb. | SELI10 |
| neverdie | Kalanchoe integra (Medik.) Kuntze | KAIN2 |
| neverdie | Kalanchoe integra (Medik.) Kuntze var. crenata (Andr.) Cufod. | KAINC |
| neverdie | Kalanchoe integra (Medik.) Kuntze var. verea (Jacq.) Cufod. | KAINV |
| Nevius's stonecrop | Sedum nevii Gray | SENE |
| New Mexican stonecrop | Rhodiola integrifolia Raf. ssp. neomexicana (Britt.) Kartesz | RHINN |
| oblongleaf stonecrop | Sedum oblanceolatum Clausen | SEOB3 |
| orange stonecrop | Sedum kamtschaticum Fisch. & C.A. Mey. | SEKA |
| orange stonecrop | Sedum kamtschaticum Fisch. & C.A. Mey. ssp. ellacombianum (Praeger) Clausen | SEKAE |
| Orcutt's liveforever | Dudleya attenuata (S. Wats.) Moran ssp. orcuttii (Rose) Moran | DUATO |
| Oregon stonecrop | Sedum oreganum Nutt. | SEOR |
| Oregon stonecrop | Sedum oreganum Nutt. ssp. oreganum | SEORO |
| Oregon stonecrop | Sedum oreganum Nutt. ssp. tenue Clausen | SEORT |
| orpine stonecrop | Sedum debile S. Wats. | SEDE |
| Pacific stonecrop | Sedum divergens S. Wats. | SEDI |
| palm beachbells | Kalanchoe gastonis-bonnieri Hamet & Perrier | KAGA |
| Palmer's liveforever | Dudleya palmeri (S. Wats.) Britt. & Rose | DUPA2 |
| Panamint liveforever | Dudleya saxosa (M.E. Jones) Britt. & Rose | DUSA |
| Panamint liveforever | Dudleya saxosa (M.E. Jones) Britt. & Rose ssp. aloides (Rose) Moran | DUSAA |
| Panamint liveforever | Dudleya saxosa (M.E. Jones) Britt. & Rose ssp. saxosa | DUSAS |
| Patagonia Mountain leatherpetal | Graptopetalum bartramii Rose | GRBA3 |
| penthorum | Penthorum L. | PENTH |
| Phedimus selskianus | Sedum selskianum Regel & Maack | SESE14 |
| Phedimus spurius | Sedum spurium Bieb. var. coccineum hort. | SESPC |
| Pierpoint Springs dudleya | Dudleya cymosa (Lem.) Britt. & Rose ssp. costafolia Bartel & Shevock | DUCYC |
| pig's ear | Cotyledon L. | COTYL |
| pig's ear | Cotyledon orbiculata L. | COOR2 |
| pig's ear | Cotyledon orbiculata L. var. oblongata (Haw.) DC. | COORO |
| powdery liveforever | Dudleya farinosa (Lindl.) Britt. & Rose | DUFA |
| pricklyseed pygmyweed | Crassula viridis (S. Wats.) Bywater & Wickens | CRVI6 |
| Purdy's stonecrop | Sedum spathulifolium Hook. ssp. purdyi (Jepson) Clausen | SESPP2 |
| pygmyweed | Crassula L. | CRASS |
| rat's-tail succulent | Villadia squamulosa (S. Wats.) Rose | VISQ |
| Red Mountain stonecrop | Sedum eastwoodiae (Britt.) Berger | SEEA2 |
| red stonecrop | Sedum moranense Kunth | SEMO2 |
| redpod stonecrop | Rhodiola rhodantha (Gray) Jacobsen | RHRH4 |
| Rhodiola integrifolia ssp. integrifolia | Sedum alaskanum (Rose) Rose ex Hutchinson | SEAL9 |
| Rhodiola integrifolia ssp. integrifolia | Sedum integrifolium (Raf.) A. Nels. | SEIN4 |
| Rhodiola integrifolia ssp. integrifolia | Sedum rosea (L.) Scop. ssp. integrifolium (Raf.) Hult?n [orthographic variant] | SEROI3 |
| Rhodiola integrifolia ssp. integrifolia | Sedum rosea (L.) Scop. var. alaskanum (Rose) Berger [orthographic variant] | SEROA |
| Rhodiola integrifolia ssp. integrifolia | Sedum rosea (L.) Scop. var. frigidum (Rydb.) Hult?n [orthographic variant] | SEROF |
| Rhodiola integrifolia ssp. integrifolia | Sedum rosea (L.) Scop. var. integrifolium (Raf.) Berger [orthographic variant] | SEROI2 |
| Rhodiola integrifolia ssp. integrifolia | Sedum roseum (L.) Scop. ssp. integrifolium (Raf.) Hult | SEROI4 |
| Rhodiola integrifolia ssp. integrifolia | Sedum roseum (L.) Scop. var. alaskanum (Rose) Berger | SEROA2 |
| Rhodiola integrifolia ssp. integrifolia | Sedum roseum (L.) Scop. var. frigidum (Rydb.) Hult | SEROF2 |
| Rhodiola integrifolia ssp. integrifolia | Sedum roseum (L.) Scop. var. integrifolium (Raf.) Berger | SEROI5 |
| Rhodiola integrifolia ssp. integrifolia | Tolmachevia integrifolia (Raf.) A.& D. L?ve | TOIN3 |
| Rhodiola integrifolia ssp. leedyi | Sedum integrifolium (Raf.) A. Nels. ssp. leedyi (Rosendahl & Moore) Clausen | SEINL |
| Rhodiola integrifolia ssp. leedyi | Sedum rosea (L.) Scop. var. leedyi Rosendahl & Moore [orthographic variant] | SEROL |
| Rhodiola integrifolia ssp. leedyi | Sedum roseum (L.) Scop. var. leedyi Rosendahl & Moore | SEROL2 |
| Rhodiola integrifolia ssp. neomexicana | Rhodiola neomexicana Britt. | RHNE2 |
| Rhodiola integrifolia ssp. neomexicana | Sedum integrifolium (Raf.) A. Nels. ssp. neomexicanum (Britt.) Clausen | SEINN |
| Rhodiola integrifolia ssp. procera | Sedum integrifolium (Raf.) A. Nels. ssp. procerum Clausen | SEINP |
| Rhodiola rhodantha | Clementsia rhodantha (Gray) Rose | CLRH2 |
| Rhodiola rhodantha | Sedum rhodanthum Gray | SERH |
| Rhodiola rosea | Rhodiola roanensis Britt. | RHRO5 |
| Rhodiola rosea | Sedum rosea (L.) Scop. var. roanense (Britt.) Berger [orthographic variant] | SEROR |
| Rhodiola rosea | Sedum rosea (L.) Scop. [orthographic variant] | SERO2 |
| Rhodiola rosea | Sedum roseum (L.) Scop. | SERO10 |
| Rhodiola rosea | Sedum roseum (L.) Scop. var. roanense (Britt.) Berger | SEROR2 |
| Rogue River stonecrop | Sedum moranii Clausen | SEMO5 |
| roseflower stonecrop | Sedum laxum (Britt.) Berger | SELA2 |
| roseflower stonecrop | Sedum laxum (Britt.) Berger ssp. flavidum Denton | SELAF |
| roseflower stonecrop | Sedum laxum (Britt.) Berger ssp. laxum | SELAL2 |
| roseroot stonecrop | Rhodiola rosea L. | RHRO3 |
| San Bernardino Mountains liveforever | Dudleya abramsii Rose ssp. affinis K. Nakai | DUABA2 |
| San Francisco River leatherpetal | Graptopetalum rusbyi (Greene) Rose | GRRU |
| San Gabriel Mountains liveforever | Dudleya densiflora (Rose) Moran | DUDE2 |
| San Gabriel River dudleya | Dudleya cymosa (Lem.) Britt. & Rose ssp. crebrifolia K. Nakai & Verity | DUCYC2 |
| San Luis Obispo dudleya | Dudleya abramsii Rose ssp. murina (Eastw.) Moran | DUABM |
| San Luis Obispo serpentine dudleya | Dudleya abramsii Rose ssp. bettinae (Hoover) Bartel | DUABB |
| sand pygmyweed | Crassula connata (Ruiz & Pav?n) Berger | CRCO34 |
| sand pygmyweed | Crassula connata (Ruiz & Pav?n) Berger var. connata | CRCOC |
| sand pygmyweed | Crassula connata (Ruiz & Pav?n) Berger var. erectoides Bywater & Wickens | CRCOE |
| sand pygmyweed | Crassula connata (Ruiz & Pav?n) Berger var. eremica (Jepson) Bywater & Wickens | CRCOE2 |
| sand pygmyweed | Crassula connata (Ruiz & Pav?n) Berger var. subsimplex (S. Wats.) Bywater & Wickens | CRCOS |
| Santa Barbara Island liveforever | Dudleya traskiae (Rose) Moran | DUTR |
| Santa Clara Valley liveforever | Dudleya setchellii (Jepson) Britt. & Rose | DUSE |
| Santa Cruz Island liveforever | Dudleya nesiotica (Moran) Moran | DUNE |
| Santa Monica Mountains dudleya | Dudleya cymosa (Lem.) Britt. & Rose ssp. ovatifolia (Britt.) Moran | DUCYO |
| saucer-plant | Aeonium undulatum Webb & Berth. | AEUN |
| sealettuce | Dudleya caespitosa (Haw.) Britt. & Rose | DUCA4 |
| Sedella congdonii | Parvisedum congdonii (Eastw.) Clausen | PACO18 |
| Sedella leiocarpa | Parvisedum leiocarpum (H.K. Sharsmith) Clausen | PALE8 |
| Sedella pentandra | Parvisedum pentandrum (H.K. Sharsmith) Clausen | PAPE8 |
| Sedella pumila | Parvisedum pumilum (Benth.) Clausen | PAPU10 |
| Sedum album | Oreosedum album (L.) Grulich | ORAL2 |
| Sedum cockerellii | Cockerellia cockerellii (Britt.) A.& D. L?ve | COCO17 |
| Sedum cockerellii | Sedum griffithsii Rose | SEGR |
| Sedum cockerellii | Sedum wootonii Britt. | SEWO2 |
| Sedum debile | Amerosedum debile (S. Wats.) A.& D. L?ve | AMDE7 |
| Sedum debile | Gormania debilis (S. Wats.) Britt. | GODE4 |
| Sedum divergens | Amerosedum divergens (S. Wats.) A.& D. L?ve | AMDI |
| Sedum eastwoodiae | Gormania eastwoodiae Britt. | GOEA |
| Sedum eastwoodiae | Sedum laxum (Britt.) Berger ssp. eastwoodiae (Britt.) Clausen | SELAE |
| Sedum forsterianum | Sedum rupestre L. var. forsterianum (Sm.) hort. | SERUF |
| Sedum kamtschaticum ssp. ellacombianum | Sedum ellacombianum Praeger | SEEL3 |
| Sedum lanceolatum ssp. lanceolatum | Amerosedum lanceolatum (Torr.) A.& D. L?ve | AMLA6 |
| Sedum lanceolatum ssp. nesioticum | Amerosedum nesioticum (G.N. Jones) A.& D. L?ve | AMNE2 |
| Sedum lanceolatum ssp. nesioticum | Sedum lanceolatum Torr. var. nesioticum (G.N. Jones) C.L. Hitchc. | SELAN3 |
| Sedum lanceolatum ssp. subalpinum | Amerosedum subalpinum (Blank.) A.& D. L?ve | AMSU |
| Sedum lanceolatum ssp. subalpinum | Sedum subalpinum Blank. | SESU7 |
| Sedum laxum ssp. heckneri | Sedum heckneri M.E. Peck | SEHE5 |
| Sedum laxum ssp. laxum | Gormania laxa Britt. | GOLA4 |
| Sedum laxum ssp. laxum | Sedum laxum (Britt.) Berger ssp. latifolium Clausen | SELAL3 |
| Sedum laxum ssp. laxum | Sedum laxum (Britt.) Berger ssp. perplexum Clausen | SELAP |
| Sedum leibergii | Amerosedum leibergii (Britt.) A.& D. L?ve | AMLE |
| Sedum leibergii | Sedum borschii (Clausen) Clausen | SEBO2 |
| Sedum leibergii | Sedum divericatum S. Wats. | SEDI10 |
| Sedum leibergii | Sedum leibergii Britt. var. typicum Clausen | SELET |
| Sedum moranii | Cotyledon glandulifera Henderson | COGL12 |
| Sedum moranii | Gormania glandulifera (Henderson) Abrams | GOGL2 |
| Sedum moranii | Sedum glanduliferum (Henderson) M.E. Peck | SEGL6 |
| Sedum nanifolium | Sedum parvum Hemley | SEPA8 |
| Sedum nanifolium | Sedum parvum Hemley ssp. nanifolium (Fr?d.) Clausen | SEPAN |
| Sedum nanifolium | Sedum robertsianum Alexander | SERO7 |
| Sedum niveum | Cockerellia nivea (A. Davids.) A.& D. L?ve | CONI7 |
| Sedum obtusatum ssp. obtusatum | Gormania obtusata (Gray) Britt. | GOOB3 |
| Sedum obtusatum ssp. retusum | Gormania retusa Rose | GORE5 |
| Sedum obtusatum ssp. retusum | Sedum laxum (Britt.) Berger ssp. retusum (Rose) Clausen | SELAR3 |
| Sedum ochroleucum | Sedum anopetalum DC. | SEAN5 |
| Sedum oreganum ssp. oreganum | Breitungia oregana (Nutt.) A.& D. L?ve | BROR5 |
| Sedum oreganum ssp. oreganum | Gormania oregana (Nutt.) Britt. | GOOR |
| Sedum oregonense | Cotyledon oregonensis S. Wats. | COOR9 |
| Sedum oregonense | Gormania watsonii Britt. | GOWA |
| Sedum paradisum | Sedum obtusatum Gray ssp. paradisum Denton | SEOBP2 |
| Sedum pulchellum | Chetyson pulchella (Michx.) A.& D. L?ve | CHPU6 |
| Sedum pulchellum | Chetyson vigilimontis (Small) A.& D. L?ve | CHVI16 |
| Sedum pulchellum | Sedum vigilimontis Small | SEVI8 |
| Sedum pusillum | Tetrorum pusillum (Michx.) Rose | TEPU5 |
| Sedum radiatum ssp. ciliosum | Sedum ciliosum T.J. Howell | SECI4 |
| Sedum radiatum ssp. ciliosum | Sedum douglasii Hook. ssp. ciliosum (T.J. Howell) Clausen | SEDOC |
| Sedum radiatum ssp. ciliosum | Sedum stenopetalum Pursh ssp. ciliosum (T.J. Howell) Clausen | SESTC |
| Sedum radiatum ssp. depauperatum | Amerosedum radiatum (S. Wats.) A.& D. L?ve ssp. depauperatum (Clausen) A.& D. L?ve | AMRAD |
| Sedum radiatum ssp. radiatum | Amerosedum radiatum (S. Wats.) A.& D. L?ve | AMRA |
| Sedum radiatum ssp. radiatum | Sedum douglasii Hook. ssp. radiatum (S. Wats.) Clausen | SEDOR |
| Sedum radiatum ssp. radiatum | Sedum stenopetalum Pursh ssp. radiatum (S. Wats.) Clausen | SESTR2 |
| Sedum reflexum | Petrosedum reflexum (L.) Grulich | PERE8 |
| Sedum reflexum | Sedum rupestre L. | SERU80 |
| Sedum rupicola | Amerosedum rupicola (G.N. Jones) A.& D. L?ve | AMRU4 |
| Sedum rupicola | Sedum lanceolatum Torr. var. rupicola (G.N. Jones) C.L. Hitchc. | SELAR2 |
| Sedum spathulifolium ssp. pruinosum | Sedum spathulifolium Hook. var. pruinosum (Britt.) Boivin | SESPP4 |
| Sedum spathulifolium ssp. purdyi | Sedum purdyi Jepson | SEPU10 |
| Sedum spathulifolium ssp. spathulifolium | Gormania spathulifolia (Hook.) A.& D. L?ve | GOSP3 |
| Sedum spathulifolium ssp. spathulifolium | Sedum spathulifolium Hook. ssp. anomalum (Britt.) Clausen & Uhl | SESPA |
| Sedum spathulifolium ssp. yosemitense | Sedum spathulifolium Hook. var. majus Praeger | SESPM2 |
| Sedum spathulifolium ssp. yosemitense | Sedum yosemitense Britt. | SEYO |
| Sedum spurium | Spathulata spuria (Bieb.) A.& D. L?ve | SPSP6 |
| Sedum stenopetalum ssp. monanthum | Amerosedum stenopetalum (Pursh) A.& D. L?ve ssp. monanthum (Suksdorf) A.& D. L?ve | AMSTM |
| Sedum stenopetalum ssp. stenopetalum | Amerosedum stenopetalum (Pursh) A.& D. L?ve | AMST3 |
| Sedum stenopetalum ssp. stenopetalum | Sedum douglasii Hook. | SEDO3 |
| Sedum ternatum | Clausenellia ternata (Michx.) A.& D. L?ve | CLTE6 |
| shortleaf liveforever | Dudleya blochmaniae (Eastw.) Moran ssp. brevifolia (Moran) Moran | DUBLB2 |
| showy stonecrop | Hylotelephium spectabile (Boreau) H. Ohba | HYSP9 |
| Siberian pygmyweed | Crassula sieberiana (J.A. Schultes) Druce | CRSI5 |
| Sierra mock stonecrop | Sedella pumila (Benth.) Britt. & Rose | SEPU4 |
| Sierra stonecrop | Sedum obtusatum Gray | SEOB |
| Sierra stonecrop | Sedum obtusatum Gray ssp. boreale Clausen | SEOBB |
| Sierra stonecrop | Sedum obtusatum Gray ssp. obtusatum | SEOBO |
| Sierra stonecrop | Sedum obtusatum Gray ssp. retusum (Rose) Clausen | SEOBR |
| small-leaf pygmyweed | Crassula drummondii (Torr. & Gray) Fedde | CRDR |
| smallseed pygmyweed | Crassula longipes (Rose) Bywater & Wickens | CRLO7 |
| smoothseed pygmyweed | Crassula solierii (C. Gay) Meigen | CRSO4 |
| Spanish stonecrop | Sedum hispanicum L. | SEHI |
| spearleaf stonecrop | Sedum lanceolatum Torr. | SELA |
| spearleaf stonecrop | Sedum lanceolatum Torr. ssp. lanceolatum | SELAL |
| spearleaf stonecrop | Sedum lanceolatum Torr. ssp. nesioticum (G.N. Jones) Clausen | SELAN2 |
| sticky liveforever | Dudleya viscida (S. Wats.) Moran | DUVI2 |
| stolon stonecrop | Sedum stoloniferum Gmel. | SEST8 |
| stonecrop | Hylotelephium H. Ohba | HYLOT |
| stonecrop | Rhodiola L. | RHODI |
| stonecrop | Sedum L. | SEDUM |
| stringy stonecrop | Sedum sarmentosum Bunge | SESA |
| subalpine stonecrop | Sedum lanceolatum Torr. ssp. subalpinum (Blank.) Clausen | SELAS |
| swamp stonecrop | Crassula helmsii A. Berger | CRHE5 |
| tapertip liveforever | Dudleya attenuata (S. Wats.) Moran | DUAT |
| tasteless stonecrop | Sedum sexangulare L. | SESE6 |
| thick-leaf stonecrop | Sedum dasyphyllum L. | SEDA2 |
| tree aenium | Aeonium arboreum (L.) Webb & Berth. | AEAR4 |
| tree stonecrop | Sedum dendroideum Moc. & Sess? ex A. DC. | SEDE8 |
| tworow stonecrop | Sedum spurium Bieb. | SESP2 |
| variegated liveforever | Dudleya variegata (S. Wats.) Moran | DUVA |
| Verity's liveforever | Dudleya verityi K. Nakai | DUVE |
| villadia | Villadia Rose | VILLA |
| water pygmyweed | Crassula aquatica (L.) Schoenl. | CRAQ |
| white stonecrop | Sedum album L. | SEAL |
| widow's-thrill | Kalanchoe Adans. | KALAN |
| widowscross | Sedum pulchellum Michx. | SEPU |
| witch's moneybags | Hylotelephium telephium (L.) H. Ohba | HYTE10 |
| witch's moneybags | Hylotelephium telephium (L.) H. Ohba ssp. fabaria (W.D.J. Koch) H. Ohba | HYTEF |
| witch's moneybags | Hylotelephium telephium (L.) H. Ohba ssp. telephium | HYTET2 |
| woodland stonecrop | Sedum ternatum Michx. | SETE3 |
| wormleaf stonecrop | Sedum stenopetalum Pursh | SEST2 |
| wormleaf stonecrop | Sedum stenopetalum Pursh ssp. monanthum (Suksdorf) Clausen | SESTM |
| wormleaf stonecrop | Sedum stenopetalum Pursh ssp. stenopetalum | SESTS2 |
| Wright's stonecrop | Sedum wrightii Gray | SEWR |
| Wright's stonecrop | Sedum wrightii Gray ssp. priscum Clausen | SEWRP |
| Wright's stonecrop | Sedum wrightii Gray ssp. wrightii | SEWRW |
| wrinkleseed pygmyweed | Crassula saginoides (Maxim.) Bywater & Wickens | CRSA7 |
| yellow stonecrop | Sedum nuttallianum Raf. | SENU |
| Yosemite stonecrop | Sedum spathulifolium Hook. ssp. yosemitense (Britt.) Clausen | SESPY |