Difference between revisions of "Pseudoclappia"
J. Wash. Acad. Sci. 13: 288. 1923.
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Clappiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Clappiinae | ||
Latest revision as of 20:13, 5 November 2020
Subshrubs or shrubs, 5–40+ cm (fleshy). Stems mostly erect, branched from bases. Leaves cauline, mostly alternate (proximal opposite); sessile; blades linear to filiform (terete), margins entire, faces glabrous. Heads radiate, borne singly. Involucres obconic, 4–6 mm diam. Phyllaries persistent, 12–16 in 2+ series (lanceolate to linear, subequal to unequal, succulent to membranous). Receptacles convex, usually epaleate, rarely with scattered, slender scales. Ray florets 2–11, pistillate, fertile; corollas yellowish. Disc florets 20–40+, bisexual, fertile; corollas yellowish, tubes shorter than or about equaling narrowly funnelform throats, lobes 5, deltate. Cypselae ± columnar (obscurely 10–12-ribbed, sparsely hairy on ribs); pappi ca. 50 fine to coarse, nearly smooth to barbellate, unequal bristles or setiform scales in 3–4 series (all ± connate at bases). x = 18.
Distribution
sw United States, n Mexico.
Discussion
Species 2 (2 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Rays 2–4+, laminae 5–11 mm; cypselae ca. 3 mm; pappi 4–6 mm | Pseudoclappia arenaria |
| 1 | Rays 6–11, laminae 10–13 mm; cypselae ca. 4 mm; pappi 8–10 mm | Pseudoclappia watsonii |