| Common Name | Scientific Name | Code |
| n/a | Selaginella ?neomexicana Maxon (pro sp.) [mutica ? rupincola] | SENE3 |
| n/a | Selaginella ciliaris sensu Brack., non Retz. | SECI5 |
| n/a | Selaginella stipitata Spring [excluded] | SEST12 |
| n/a | Selaginella umbrosa Lem. ex Hieron. | SEUM |
| Arizona spikemoss | Selaginella arizonica Maxon | SEAR2 |
| armored spikemoss | Selaginella armata Baker | SEAR6 |
| Asian spikemoss | Selaginella plana (Desv. ex Poir.) Hieron. | SEPL3 |
| blue spikemoss | Selaginella uncinata (Desv. ex Poir.) Spring | SEUN2 |
| bluish spikemoss | Selaginella asprella Maxon | SEAS |
| bluntleaf spikemoss | Selaginella mutica D.C. Eat. ex Underwood | SEMU |
| bluntleaf spikemoss | Selaginella mutica D.C. Eat. ex Underwood var. limitanea Weatherby | SEMUL |
| bluntleaf spikemoss | Selaginella mutica D.C. Eat. ex Underwood var. mutica | SEMUM |
| Braun's spikemoss | Selaginella braunii Baker | SEBR3 |
| bushy spikemoss | Selaginella bigelovii Underwood | SEBI |
| club spikemoss | Selaginella selaginoides (L.) Beauv. ex Mart. & Schrank | SESE |
| deflexed spikemoss | Selaginella deflexa Brack. | SEDE4 |
| delicate spikemoss | Selaginella tenella (Beauv.) Spring | SETE8 |
| desert spikemoss | Selaginella eremophila Maxon | SEER |
| Douglas's spikemoss | Selaginella douglasii (Hook. & Grev.) Spring | SEDO |
| dwarf spikemoss | Selaginella arbuscula (Kaulfuss) Spring | SEAR5 |
| Eaton's spikemoss | Selaginella eatonii Hieron. ex Small | SEEA |
| fan spikemoss | Selaginella flabellata (L.) Spring [excluded] | SEFL2 |
| flower of stone | Selaginella lepidophylla (Hook. & Grev.) Spring | SELE2 |
| green spikemoss | Selaginella viridissima Weatherby | SEVI |
| gulf spikemoss | Selaginella ludoviciana (A. Braun) A. Braun | SELU3 |
| handsome spikemoss | Selaginella subcaulescens Baker | SESU2 |
| Hansen's spikemoss | Selaginella hansenii Hieron. | SEHA2 |
| Hawai'i spikemoss | Selaginella sandvicensis Baker | SESA2 |
| heartleaf spikemoss | Selaginella cordifolia (Desv. ex Poir.) Spring | SECO5 |
| hidden spikemoss | Selaginella eclipes Buck | SEEC |
| Krauss's spikemoss | Selaginella kraussiana (Kunze) A. Braun | SEKR |
| Krug's spikemoss | Selaginella krugii Hieron. | SEKR2 |
| lesser spikemoss | Selaginella densa Rydb. | SEDE2 |
| lesser spikemoss | Selaginella densa Rydb. var. densa | SEDED |
| limpleaf spikemoss | Selaginella laxifolia Baker | SELA5 |
| meadow spikemoss | Selaginella apoda (L.) Spring | SEAP |
| Menzies's spikemoss | Selaginella menziesii (Hook. & Grev.) Spring | SEME2 |
| mesa spikemoss | Selaginella cinerascens A.A. Eat. | SECI |
| Mojave spikemoss | Selaginella leucobryoides Maxon | SELE3 |
| northern selaginella | Selaginella rupestris (L.) Spring | SERU |
| Oregon spikemoss | Selaginella oregana D.C. Eat. | SEOR3 |
| oval-leaf spikemoss | Selaginella ovifolia Baker | SEOV |
| Peruvian spikemoss | Selaginella peruviana (Milde) Hieron. | SEPE |
| plumed spikemoss | Selaginella plumosa (L.) K. Presl | SEPL2 |
| resurrection plant | Selaginella pilifera A. Braun | SEPI |
| Riddell's spikemoss | Selaginella arenicola Underwood ssp. riddellii (Van Eselt.) R. Tryon | SEARR |
| rockloving spikemoss | Selaginella rupincola Underwood | SERU2 |
| Rocky Mountain spikemoss | Selaginella densa Rydb. var. scopulorum (Maxon) R. Tryon | SEDES |
| sand spikemoss | Selaginella arenicola Underwood | SEAR |
| sand spikemoss | Selaginella arenicola Underwood ssp. arenicola | SEARA2 |
| Selaginella acanthonota | Selaginella arenicola Underwood ssp. acanthonota (Underwood) R. Tryon | SEARA |
| Selaginella apoda | Selaginella apus Spring | SEAP3 |
| Selaginella arenicola ssp. riddellii | Selaginella arenicola Underwood var. riddellii (Van Eselt.) Waterfall | SEARR2 |
| Selaginella arenicola ssp. riddellii | Selaginella riddellii Van Eselt. | SERI3 |
| Selaginella armata | Selaginella plagiochila sensu Krug & Urban, non Baker | SEPL4 |
| Selaginella densa var. densa | Selaginella engelmannii Hieron. | SEEN |
| Selaginella densa var. scopulorum | Selaginella engelmannii Hieron. var. scopulorum (Maxon) C.F. Reed | SEENS |
| Selaginella densa var. scopulorum | Selaginella scopulorum Maxon | SESC5 |
| Selaginella densa var. standleyi | Selaginella engelmannii Hieron. var. standleyi (Maxon) C.F. Reed | SEENS2 |
| Selaginella densa var. standleyi | Selaginella standleyi Maxon | SEST5 |
| Selaginella eatonii | Selaginella armata Baker var. eatonii (Hieron. ex Small) B.F. Hansen & Wunderlin | SEARE |
| Selaginella ludoviciana | Selaginella apoda (L.) Spreng. var. ludoviciana B.F. Hansen & Wunderlin | SEAPL |
| Selaginella mutica var. limitanea | Selaginella mutica D.C. Eat. ex Underwood var. texana Weatherby | SEMUT |
| Selaginella peruviana | Selaginella sheldonii Maxon | SESH2 |
| Selaginella pilifera | Selaginella pilifera A. Braun var. pringlei (Baker) Morton | SEPIP |
| Selaginella plumosa | Selaginella stolonifera (Sw.) Spring | SEST7 |
| Selaginella rupestris | Lycopodium rupestre L. | LYRU3 |
| Selaginella sandvicensis | Selaginella parvula Hbd. | SEPA11 |
| Selaginella subcaulescens | Selaginella sintenisii Hieron. | SESI4 |
| Selaginella substipitata | Selaginella portoricensis A. Braun | SEPO6 |
| Selaginella tenella | Selaginella albonitens Spring | SEAL6 |
| Selaginella underwoodii | Selaginella underwoodii Hieron. var. dolichotricha Weatherby | SEUND |
| Siberian spikemoss | Selaginella sibirica (Milde) Hieron. | SESI |
| spikemoss | Selaginella Beauv. | SELAG |
| spiny spikemoss | Selaginella acanthonota Underwood | SEAC4 |
| stalked spikemoss | Selaginella substipitata Spring | SESU3 |
| Standley's spikemoss | Selaginella densa Rydb. var. standleyi (Maxon) R. Tryon | SEDES2 |
| starry spikemoss | Selaginella stellata Spring | SEST11 |
| twistedhair spikemoss | Selaginella tortipila A. Braun | SETO |
| Underwood's spikemoss | Selaginella underwoodii Hieron. | SEUN |
| Utah spikemoss | Selaginella utahensis Flowers | SEUT |
| Wallace's spikemoss | Selaginella wallacei Hieron. | SEWA |
| Watson's spikemoss | Selaginella watsonii Underwood | SEWA2 |
| Weatherby's spikemoss | Selaginella weatherbiana R. Tryon | SEWE3 |
| Willdenow's spikemoss | Selaginella willdenowii (Desv. ex Poir.) Baker | SEWI |
| Wright's spikemoss | Selaginella wrightii Hieron. | SEWR2 |