Phemeranthus parviflorus |
Phemeranthus brevifolius |
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sunbright |
pygmy fameflower |
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Habit | Plants to 2 dm; roots elongate, fleshily woody. | Plants sometimes mat-forming, to 0.6 dm; roots elongate, woody. |
Stems | ± erect, simple or branching, sometimes suffrutescent. |
spreading-ascending, branching, sometimes suffrutescent. |
Leaves | sessile; blade terete, sometimes slightly broadened at base, to 5 cm. |
sessile; blade subterete, to 1.5 cm. |
Inflorescences | cymose, much overtopping leaves; peduncle scapelike, to 15 cm. |
cymulose or often only 1-flowered, usually slightly overtopping leaves; peduncle not scapelike, sometimes rudimentary, to 0.3 cm. |
Flowers | usually pedicellate, sometimes sessile or subsessile; sepals deciduous or sometimes persistent, ovate, to 4.5 mm, apex sometimes purplish, acuminate-cornate, thickened; petals light pink to purplish, elliptic to obovate, to 7 mm; stamens (4–)5(–6); stigma 1, subcapitate, sometimes stigmas 3-lobed, or 3, triangular. |
sepals deciduous, oval to orbiculate, to 4 mm; petals rose, lavender, or rarely white, obovate, to 10 mm; stamens 20–25; stigmas 3, sublinear. |
Capsules | ellipsoid or sometimes ovoid, sometimes obtusely trigonous, 3–5 mm. |
subglobose to ellipsoid, 3.5–4 mm. |
Seeds | without arcuate ridges, 0.8–1 mm. |
without arcuate ridges, 1 mm. |
2n | = 24, 48. |
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Phemeranthus parviflorus |
Phemeranthus brevifolius |
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Phenology | Flowering Apr–Sep. | Flowering Jun–Oct. |
Habitat | Dry woodland, grassland, chaparral, scrub, canyon washes, mountain slopes and ledges, sandy, usually rocky soil, outcrops | Dry, rocky slopes and ledges in sand pockets |
Elevation | 0-2700 m (0-8900 ft) | 1500-2200 m (4900-7200 ft) |
Distribution |
AL; AR; AZ; CO; IA; IL; KS; LA; MN; MO; ND; NE; NM; OK; SD; TX; UT; WY; n Mexico (Chihuahua, Coahuila)
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AZ; NM; UT |
Discussion | Over its extensive range, Phemeranthus parviflorus varies considerably in several characters, including overall size. Although this variation is more or less continuous, correlating very generally with habitat type and geographic location, some populations that are found toward the limits of the species’ range and that exhibit combinations of tendencies to extremes in the variable characters have been recognized separately. The Alabama populations, few and confined to a very small area on gneiss in the central part of the state, disjunct from the main trans-Mississippi distribution of P. parviflorus, with elongate stems, small flowers, and stigmas often three-lobed, or three instead of one, have been described as Talinum appalachianum. Plants from Arizona with stems slender and tending to elongate, sepals acuminate-cornate and usually purplish, and capsules ovoid have been described as T. gooddingii. Plants from the mountains of New Mexico with elongate stems, subsessile flowers, markedly congested cymes, and acuminate, often persistent sepals have been described as T. confertiflorum (P. confertiflorus). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Reports of Phemeranthus brevifolius from western Texas and southern New Mexico, where it does not actually occur, apparently have been based on misidentified specimens of P. brevicaulis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 493. | FNA vol. 4, p. 491. |
Parent taxa | Portulacaceae > Phemeranthus | Portulacaceae > Phemeranthus |
Sibling taxa | ||
Synonyms | Talinum parviflorum, P. confertiflorus, Talinum appalachianum, Talinum confertiflorum, Talinum fallax, Talinum gooddingii | Talinum brevifolium, Talinum brachypodum |
Name authority | (Nuttall) Kiger: Novon 11: 320. (2001) | (Torrey) Hershkovitz: Taxon 46: 222. (1997) |
Web links |