Hydropectis aquatica (S. Wats.) Rydb.

Hydropectis aquatica (S. Wats.) Rydberg
Pedis aquatica S. Wats. Proc. Am. Acad. 23: 279. 1888.
A glabrous water-plant; stem 3 dm. long or more; leaves thick, linear, entire, blunt, 3-4
cm. long; heads solitarjin the axils; peduncles less than 1 cm. long, in age recurved; involucre
turbinate, about 1 cm. high, 4 mm. broad; bracts 5, obovate, rounded at the apex, somewhat
purple-tipped; flowers about 12; corollas 2 mm. long; achenes 8 mm. long, hirsute-strigose;
pappus-bristles 10-12, the longer 2 mm. long.
Type locality: Base of Sierra Madre, Chihuahua. Distribution; Known only from the type locality.
* On the specimens examined no glands were seen and the genus may not belong to this tribe.