Difference between revisions of "Thymophylla pentachaeta var. belenidium"
Sida 11: 377. 1986.
Basionym: Dyssodia belenidium de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 7: 292. 1838
Synonyms: Dyssodia pentachaeta var. belenidium (de Candolle) Strother Dyssodia thurberi (A. Gray) B. L. Robinson
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae | ||
Latest revision as of 20:13, 5 November 2020
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.