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Okanagan fameflower, Okanogan fameflower, Okanogan talinum

prairie fameflower, rough-seed fameflower

Habit Plants to 1 dm; roots elongate, fleshily woody. Plants to 2.5 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, simple or sometimes branching.

Leaves

sessile;

blade subterete, to 1.2 cm, base attenuate.

sessile;

blade terete, to 6 cm.

Inflorescences

cymose, overtopping leaves;

peduncle somewhat scapelike or not, to 5 cm.

cymose, much overtopping leaves;

peduncle scapelike, to 15 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, 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.

Capsules

subglobose, trigonous, to 4 mm.

subglobose, 4 mm.

Seeds

without arcuate ridges, 1 mm.

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

2n

= 24.

Phemeranthus sediformis

Phemeranthus rugospermus

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

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.)

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