Photo: Thelesperma megapotamicum 1.

Flowers. Bottomless lake, NM, US. Wild. 1998-06-01.

Thelesperma megapotamicum (Spreng.) Kuntze
Engl.: Hopi tea greenthread, Indian tea, Navajo tea.
Span.: cota.
Bot. syn.: Bidens megapotamica Spreng., Thelesperma gracile (Torr.) Gray