Flora of North America species comparison

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Phemeranthus sediformis

Phemeranthus mengesii

Okanagan fameflower, Okanogan fameflower, Okanogan talinum

menges' fameflower
Habit Plants to 1 dm; roots elongate, fleshily woody. Plants to 4 dm; roots elongate, fleshily woody.
Stems

spreading to ascending, branching, bearing ± persistent, arcuate, bristlelike, less than 5 mm, proximal portions of midribs of old leaves, suffrutescent.

± erect, usually branching.
Leaves

sessile;

blade subterete, to 1.2 cm, base attenuate.

sessile;

blade terete, to 7 cm.
Inflorescences

cymose, overtopping leaves;

peduncle somewhat scapelike or not, to 5 cm.

cymose, much overtopping leaves;

peduncle scapelike, to 20 cm.
Flowers

sepals deciduous, ovate, to 4 mm;

petals white, sometimes tinged pink or pale yellow, obovate to suborbiculate, to 8 mm;

stamens 15;

stigma 1, subcapitate.

sepals deciduous, ovate, 3–4 mm;

petals pink to rose-purple, obovate, 9–15 mm;

stamens (40–)50–100;

stigma 1, subcapitate.
Capsules

subglobose, trigonous, to 4 mm.

subglobose, sometimes trigonous, 3–4 mm.
Seeds

without arcuate ridges, 1 mm.

without arcuate ridges, 0.8–1 mm.
2n

= 24, 48.

Phemeranthus sediformis

Phemeranthus mengesii
Phenology Flowering May–Jul. Flowering Apr–Oct.
Habitat Slopes, ledges, rocky soil Woods, glades, barrens, cliffs, outcrops, rocky banks, sandstone, granite, gneiss, rarely limestone
Elevation 1000-2000 m (3300-6600 ft) 100-1000 m (300-3300 ft)
Distribution
from FNA
WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; GA; NC; SC; TN; VA
[BONAP county map]
Discussion

Of conservation concern.

Phemeranthus sediformis is poorly known and merits further study in the field and better representation in herbaria. When its characters and their ranges of variation are better known, it may prove to be indistinct from P. spinescens.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 4, p. 494. FNA vol. 4, p. 493.
Parent taxa Portulacaceae > Phemeranthus Portulacaceae > Phemeranthus
Sibling taxa
P. aurantiacus, P. brevicaulis, P. brevifolius, P. calcaricus, P. calycinus, P. humilis, P. longipes, P. marginatus, P. mengesii, P. parviflorus, P. rugospermus, P. spinescens, P. teretifolius, P. thompsonii, P. validulus
P. aurantiacus, P. brevicaulis, P. brevifolius, P. calcaricus, P. calycinus, P. humilis, P. longipes, P. marginatus, P. parviflorus, P. rugospermus, P. sediformis, P. spinescens, P. teretifolius, P. thompsonii, P. validulus
Synonyms Talinum sediforme, Talinum okanoganense, Talinum wayae Talinum mengesii
Name authority (Poellnitz) Kiger: Novon 11: 320. (2001) (W. Wolf) Kiger: Novon 11: 320. (2001)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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