Thymophylla pentachaeta var. belenidium
Sida 11: 377. 1986.
Basionym: Dyssodia belenidium de Candolle
Synonyms: Dyssodia pentachaeta var. belenidium (de Candolle) Strother Dyssodia thurberi (A. Gray) B. L. Robinson
Revision as of 15:35, 18 September 2019 by FNA>Volume Importer
Leaves 10–20 mm overall, lobes 3–7, subequal. Peduncles 20–50 mm. Calyculi of 3–5 bractlets. Involucres obconic to campanulate, 4.5–6 × 4–5 mm. Phyllaries ca. 13, margins of outer distinct almost to bases, abaxial faces glabrous (margins ciliate). Disc florets 50–70. Pappi usually of 10, 3-aristate scales, sometimes of 5 muticous scales alternating with 5, 3-aristate scales. 2n = 32 (Argentina).
Phenology: Flowering spring–summer.
Habitat: Sandy or rocky soils of desert washes and fans, commonly with limestone, often ruderal along roadways
Elevation: 500–2500+ m
Distribution
Ariz., Calif., Nev., N.Mex., Tex., Utah, Mexico, South America (Argentina).
Discussion
Selected References
None.
Lower Taxa
None.