Eriogonum microthecum var. phoeniceum
Harvard Pap. Bot. 9: 183. 2004.
Subshrubs, 0.2–0.4 × 0.6–1.2 dm. Stems: caudex absent or sometimes spreading; aerial flowering-stems 0.05–0.1 dm, reddish-tomentose to floccose. Leaves: blade linear, 0.4–0.6 × 0.08–0.12 cm, densely white-tomentose abaxially, sparsely floccose and green adaxially, margins revolute. Inflorescences 0.5–1 cm; branches reddish-floccose to glabrate. Involucres 2–3 mm, floccose to subglabrous. Flowers 2–2.5 mm; perianth white to pink, rose, or red. Achenes 1.5–2 mm.
Phenology: Flowering Jul–Sep.
Habitat: Tuffaceous ash outcrops, sagebrush communities, pinyon-juniper woodlands
Elevation: 1600-2100 m
Discussion
Variety phoeniceum is known only from widely scattered populations in Juab and Millard counties of western Utah. It closely approaches var. lapidicola, and a distinction between the two is somewhat arbitrary, the leaf blades of var. phoeniceum being tightly revolute and a brighter green on the adaxial surface. Specimens of var. phoeniceum also approach specimens of the variable var. simpsonii found mainly in Emery County in eastern Utah.
Selected References
None.
Lower Taxa
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