Polanisia dodecandra subsp. riograndensis
SouthW. Naturalist 14: 116, fig. 1[top]. 1969.
Common names: Rio Grande clammyweed
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
Tex., Mexico (Nuevo León), Mexico (Tamaulipas)
Discussion
Subspecies riograndensis is found along the lower Rio Grande in Texas and adjacent Mexico.
Selected References
None.
Lower Taxa
None.
... more about "Polanisia dodecandra subsp. riograndensis"
8mm;14mm +
hypogynous +
dehiscing +
not coiling +
emarginate +
absent +
lanceolate;orbiculate +
absent +
Rio Grande clammyweed +
incumbent +
absent +
scanty +
glabrous +
zygomorphic +
bisexual +
rotate;crateriform campanulate or urceolate +
capsular +
valvate +
elongate +
dehiscent +
absent +
single +
ascending +
absent +
stalked +
racemose +
ovate;orbiculate +
flat-topped +
pinnate +
bright orange +
not conspicuous +
1-carpellate +
parietal +
bitegmic +
anatropous +
1;18 +
absent +
hypogynous +
persistent +
absent +
imbricate +
attached +
distinct +
unequal +
equal +
green;purple +
absent +
angled +
SouthW. Naturalist +
1969 +
not arillate +
dark reddish-brown +
20;65 +
tuberculate-rugose +
purple +
deciduous +
distinct +
? (?) +
oblong +
equal +
longitudinal +
absent +
slightly longer +
exserted +
10;20 +
equaling +
branched +
viscid +
procumbent +
glandular-pubescent +
capitate +
unlobed +
absent +
minute +
deciduous +
Polanisia dodecandra subsp. riograndensis +
Polanisia dodecandra +
subspecies +