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FNA | Family List | FNA Vol. 4 | Portulacaceae | Phemeranthus

16. Phemeranthus validulus (Greene) Kiger, Novon. 11: 321. 2001.

Talinum validulum Greene, Leafl. Bot. Observ. Crit. 2: 270. 1912

Plants to 1.2 dm; roots elongate, woody. Stems spreading-ascending overall, sometimes basally decumbent, branching. Leaves sessile; blade terete, to 4.5 cm. Inflorescences cymose, slightly to much overtopping leaves; peduncle ± scapelike or not, to 6.5 cm. Flowers: sepals persistent, broadly lanceolate, to 4 mm, apex acuminate; petals white to purplish pink, paler at base, elliptic-ovate, to 9 mm; stamens (6-)7-18; stigma 1, subcapitate, sometimes 3-lobed. Capsules ovoid, strongly trigonous, 5-7 mm. Seeds without arcuate ridges, 1 mm.

Flowering Jun-Sep. Woodland openings and bare slopes and summits in rocky soil on chert, basalt, and cinder; 1800-2400 m; Ariz., N.Mex.

The more recently described Phemeranthus thompsonii may be indistinct from P. validulus and perhaps should be merged with it.


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