Colorado greenthread (Thelesperma ambiguum)
Same genus
- Burridge's greenthread (Thelesperma burridgeanum)
- Stiff greenthread (Thelesperma filifolium)
- East Texas greenthread (Thelesperma flavodiscum)
- Longstalk greenthread (Thelesperma longipes)
- Hopi tea greenthread (Thelesperma megapotamicum)
- Rio Grande greenthread (Thelesperma nuecense)
- Slender greenthread (Thelesperma simplicifolium)
- Navajo tea (Thelesperma subnudum)