Flora of North America species comparison

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Phemeranthus rugospermus

Phemeranthus sediformis

prairie fameflower, rough-seed fameflower

Okanagan fameflower, Okanogan fameflower, Okanogan talinum
Habit Plants to 2.5 dm; roots elongate, fleshily woody. Plants to 1 dm; roots elongate, fleshily woody.
Stems

± erect, simple or sometimes branching.

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

sessile;

blade terete, to 6 cm.

sessile;

blade subterete, to 1.2 cm, base attenuate.
Inflorescences

cymose, much overtopping leaves;

peduncle scapelike, to 15 cm.

cymose, overtopping leaves;

peduncle somewhat scapelike or not, to 5 cm.
Flowers

sepals deciduous, ovate, 4 mm;

petals pink to magenta, ovate to obovate, sometimes mucronulate, 6.5–8 mm;

stamens 12–28;

stigmas 3, spreading widely, linear, 1/2–1/3 as long as styles.

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.
Capsules

subglobose, 4 mm.

subglobose, trigonous, to 4 mm.
Seeds

without arcuate ridges, 1.2 mm, corrugate-rugulose overall.

without arcuate ridges, 1 mm.
2n

= 24.

Phemeranthus rugospermus

Phemeranthus sediformis
Phenology Flowering May–Aug. Flowering May–Jul.
Habitat Sand or sandy soils, dunes, mounds, flats, banks, ridges, edges of igneous or metamorphic rock outcrops, along or near watercourses Slopes, ledges, rocky soil
Elevation 0-500 m (0-1600 ft) 1000-2000 m (3300-6600 ft)
Distribution
from FNA
IA; IL; IN; KS; LA; MN; NE; TX; WI
[WildflowerSearch map]
[BONAP county map]
from FNA
WA; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Within the overall area of its distribution, Phemeranthus rugospermus is nowhere abundant, its occurrence being everywhere spotty and localized. According to T. S. Cochrane (1993), the disjunctions probably reflect a history of long-distance dispersal from a center in the partially unglaciated Kansas and Nebraska sandhills, the present-day gaps resulting from a paucity of suitable habitats between that area and the others where it is now found. Even so, its discovery in Missouri, Arkansas, and/or Oklahoma would not be surprising.

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

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.)
Source FNA vol. 4, p. 494. FNA vol. 4, p. 494.
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. sediformis, 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. mengesii, P. parviflorus, P. rugospermus, P. spinescens, P. teretifolius, P. thompsonii, P. validulus
Synonyms Talinum rugospermum Talinum sediforme, Talinum okanoganense, Talinum wayae
Name authority (Holzinger) Kiger: Novon 11: 320. (2001) (Poellnitz) 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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