Perityle coronopifolia
Arizona rockdaisy, crow-foot rock daisy
petioles 2–8(–12) mm;
blades pedately 3-lobed (lobes spatulate or linear), or 2–3-pinnatifid (lobes linear-filiform), 4–30 × 4–20 mm, ultimate margins entire.
7–15 mm.
campanulate.
8–12;
corollas white, laminae broadly oblong or oblong-elliptic to subspatulate, 3–7 × 2–3 mm.
30–40;
corollas yellow, often purple tinged, tubes 0.8–1 mm, throats tubular, tubular-funnelform, or tubular-campanulate, 1–1.3 mm, lobes 0.3–0.4 mm.
2–16, linear-lanceolate to narrow-ovate, 3.5–5 × 0.5–1.5 mm.
(2–5) in corymbiform arrays, 5–6.5 × 5–6 mm.
linear-oblong to narrowly oblanceolate, 1.8–2.5 mm, margins usually prominently calloused, sometimes thin, usually ciliate;
pappi of 2(–3+) barbellulate bristles 1.5–2.5 mm plus crowns of hyaline, laciniate scales.
= 34.
Perityle coronopifolia
Perityle coronopifolia is widespread in south-central and southeastern Arizona, and southwestern and south-central New Mexico. The combination of white rays, often pinnatifid leaves, and perennial habit distinguish it.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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