Perityle megalocephala
Perityle tenella
bighead rockdaisy, large head rock daisy, limestone rockdaisy, Nevada Rock daisy
Dixie or Springdale Rock daisy, Springdale rock-daisy
petioles 1–6 mm;
blades usually elliptic, lanceolate, lance-ovate, ovate, or suborbiculate, sometimes linear, 4–8(–15) × 1–10(–12) mm, margins entire, irregularly and sparsely serrate, or serrate-lobed.
petioles 2–8 mm;
blades usually broadly deltate-ovate, sometimes subovate or subcordate, 5–18(–25) × 4–18(–20) mm, (bases truncate) margins usually ± serrate, rarely laciniate.
10–45(–80) mm.
4–25 mm.
campanulate.
campanulate.
0.
0.
45–60;
corollas yellow, tubes 1–1.6 mm, throats tubular to subfunnelform, 1.6–2.2 mm, lobes 0.4–0.7 mm.
23–35(–48);
corollas yellow, tubes (1–)1.2–1.6 mm, throats tubular to narrowly funnelform, 1.2–1.6(–2.2) mm, lobes 0.3–0.7 mm.
14–20, lanceolate to suboblanceolate, 5–6 × 1.3–1.9 mm.
13–20, linear to narrowly or broadly lanceolate, 4–5(–6) × 0.8–1.3 mm.
borne singly or (2–3) in loose, corymbiform arrays, 6–9(–10) × 5–6(–8) mm.
borne singly or (2–10) in corymbiform arrays, 6–7 × 4–6 mm.
narrowly oblanceolate to suboblanceolate, 2.5–3 mm, margins thin-calloused, short-hairy;
pappi 0, or of single bristles.
narrowly oblanceolate, 2.5–3.3 mm, margins obviously calloused, minutely hairy;
pappi 0 or of 1(–3) moderately stout bristles 2–2.8(–4.1) mm plus callous crowns.
= 32.
Perityle megalocephala
Perityle tenella
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
Similarities of Perityle tenella to P. congesta are discussed under the latter. Perityle tenella occurs in northwestern Arizona, southeastern Nevada, and southwestern Utah.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaf blades ovate, lanceolate-ovate or elliptic to suborbiculate | var. megalocephala |
1. Leaf blades linear to lanceolate | var. oligophylla |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
