United States of America Missouri: Ralls County T55 N, R7W, E 1/2 Sec. 15. Public Beach access area of Clarence Cannon Reservoir.
Géolocalisation
39,55 , -91,716667
Numéro de récolte
2220
Habitat
in open sandy soil just above high water mark on margins of sandy beach of swimming area; disturbed soil, probably sandy fill for beach area. With Polygonum arenastrum (Brant #2219).
Notes
Plants sprawling-decumbent. Plants infected with a powdery mildew.