J. Wash. Acad. Sci. 13: 288. 1923.

Etymology: Greek pseudo, resembling but not equaling, and generic name Clappia
Treatment appears in FNA Volume 21. Treatment on page 252. Mentioned on page 251.

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.


sw United States, n Mexico.


Species 2 (2 in the flora).

Selected References



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