Phemeranthus teretifolius
Phemeranthus marginatus
quill fameflower, rock-portulaca
± erect, simple or sometimes branching.
± erect, simple.
sessile;
blade terete, to 6 cm.
sessile but strongly contracted at or below middle and appearing petiolate;
blade proximally subterete, distally flattened and oblong-spatulate, to 4 cm.
cymose, over-topping leaves;
peduncle scapelike, to 25 cm.
cymose, slightly overtopped by to usually overtopping leaves;
peduncle scapelike, to 2.5 cm.
sepals deciduous, elliptic to ovate, 3–4 mm;
petals rose-purple, obovate, 5–7 mm;
stamens 12–20;
stigma 1, subcapitate or sometimes indistinctly 3-lobed.
sepals deciduous, broadly lanceolate to ovate, 2–3 mm;
petals yellow, obovate, 3–5 mm;
stamens 5;
stigma 1, subcapitate.
subglobose, 4–5 mm.
ellipsoid, 3 mm.
without arcuate ridges, 0.8–1 mm.
with arcuate ridges, 1 mm.
= 48.
Phemeranthus teretifolius
Phemeranthus marginatus
Phemeranthus teretifolius is an allopolyploid derived from P. parviflorus and P. mengesii, both of which it evidently outcompetes within its southern Appalachian range (M. E. B. Carter and W. H. Murdy 1985; W. H. Murdy and M. E. B. Carter 1985, 2001).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
MD Biodiversity
WildflowerSearch
iNaturalist
USDA Plants Database
