Phemeranthus mengesii
Novon 11: 320. 2001.
Endemic
Basionym: Talinum mengesii W. Wolf Amer. Midl. Naturalist 6: 153. 1920
Plants to 4 dm; roots elongate, fleshily woody. Stems ± erect, usually branching. Leaves sessile; blade terete, to 7 cm. Inflorescences cymose, much overtopping leaves; peduncle scapelike, to 20 cm. Flowers: sepals deciduous, ovate, 3–4 mm; petals pink to rose-purple, obovate, 9–15 mm; stamens (40–) 50–100; stigma 1, subcapitate. Capsules subglobose, sometimes trigonous, 3–4 mm. Seeds without arcuate ridges, 0.8–1 mm. 2n = 24, 48.
Phenology: Flowering Apr–Oct.
Habitat: Woods, glades, barrens, cliffs, outcrops, rocky banks, sandstone, granite, gneiss, rarely limestone
Elevation: 100-1000 m
Distribution
Ala., Ga., N.C., S.C., Tenn., Va.
Discussion
Most populations of Phemeranthus mengesii are diploid but a few scattered in western Georgia are tetraploid, probably the result of autopolyploidy (W. H. Murdy and M. E. B. Carter 2001).
Selected References
Lower Taxa
None.
... more about "Phemeranthus mengesii"
oblong +
round +
auriculate +
membranous to chartaceous +
occasionally dentate;crisped +
terete +
succulent +
3-valved +
dehiscent +
persistent +
anthesis +
single +
not separating +
erect +
differentiated +
not separating +
erect +
differentiated +
coherent +
irregular +
symmetric +
few +
cleistogamous +
capsular +
3[-5]-carpelled +
Woods, glades, barrens, cliffs, outcrops, rocky banks, sandstone, granite, gneiss, rarely limestone +
cymose +
spikelike +
sessile +
not clasping +
plurilocular +
superior +
1-many +
scapelike +
short;elongate +
thin +
fugacious +
absent +
rarely;5 +
obovate +
Novon +
2001 +
parallel +
arcuate +
tuberous +
elongate +
woody +
lustrous +
estrophiolate +
many +
distinct +
deciduous +
2;9 +
ovate +
Endemic +
opposite +
branching +
suffrutescent +
erect +
subcapitate +
branched +
absent +
Phemeranthus mengesii +
Phemeranthus +
species +
deciduous +
caulescent +
perennial +
glabrous +