| Common Name | Scientific Name | Code |
| apteria | Apteria Nutt. | APTER |
| Apteria aphylla | Apteria aphylla (Nutt.) Barnh. ex Small var. hymenanthera (Miq.) Jonker | APAPH |
| Apteria aphylla | Apteria hymenanthera Miq. | APHY3 |
| banded Trinity | Thismia americana N.E. Pfeiffer | THAM2 |
| bluethread | Burmannia L. | BURMA |
| bluethread | Burmannia ledermannii Jonk. | BULE5 |
| cat's milk | Cymbocarpa refracta Miers | CYRE12 |
| cymbocarpa | Cymbocarpa Miers | CYMBO2 |
| Fahkahatchee bluethread | Burmannia flava Mart. | BUFL2 |
| Gymnosiphon niveus | Gymnosiphon germainii Urban | GYGE |
| Gymnosiphon niveus | Ptychomeria portoricensis (Urban) Schlechter | PTPO3 |
| mountain yellowseed | Gymnosiphon sphaerocarpus Urban | GYSP |
| nodding nixie | Apteria aphylla (Nutt.) Barnh. ex Small | APAP |
| northern bluethread | Burmannia biflora L. | BUBI |
| Puerto Rico yellowseed | Gymnosiphon niveus (Griseb.) Urban | GYNI |
| southern bluethread | Burmannia capitata (J.F. Gmel.) Mart. | BUCA3 |
| thismia | Thismia Griffith | THISM |
| yellowseed | Gymnosiphon Blume | GYMNO4 |