Polanisia dodecandra subsp. riograndensis

H. H. Iltis

SouthW. Naturalist 14: 116, fig. 1[top]. 1969.

Common names: Rio Grande clammyweed
Treatment appears in FNA Volume 7. Treatment on page 202. Mentioned on page 203.

Leaflets: blade apex rounded. Inflorescence bracts ovate to orbiculate. Petals pink, rose, or purple, (6–)8–14(–17) mm. Stamens (6–)7–17 mm, equaling or slightly longer than petals. Seeds tuberculate-rugose. 2n = 20.


Phenology: Flowering spring–fall.
Habitat: River banks, coastal dunes, open woodlands, mesquite, and semi-desert
Elevation: 0-100 m

Distribution

V7 262-distribution-map.gif

Tex., Mexico (Nuevo León, Tamaulipas).

Discussion

Subspecies riograndensis is found along the lower Rio Grande in Texas and adjacent Mexico.

Selected References

None.

Lower Taxa

None.
Gordon C. Tucker +
H. H. Iltis +
Cleome dodecandra +
Rio Grande clammyweed +
Tex. +, Mexico (Nuevo León +  and Tamaulipas). +
0-100 m +
River banks, coastal dunes, open woodlands, mesquite, and semi-desert +
Flowering spring–fall. +
SouthW. Naturalist +
Weedy +  and Illustrated +
Cristatella +
Polanisia dodecandra subsp. riograndensis +
Polanisia dodecandra +
subspecies +