Bidens serrulata (Poit.) Desf.

Flora of Mexico
Bidens serrulata (Poir.) Desf.
erect herb to .3 meters high; flowers
dark yellow on inner half, light
yellow on outer half
Hab. along road
State of Mexico
‘5 miles east of Rio Frio along toll
road to Puebla KM 71
19° 2 0144"N, 98°36'1"W
Elev. 2,880 m
Coll. Elias, T.S., Villasenor,J.L.,
Calzada, I.
Coll. # 12552
20 Oct 1998
03815843