Perityle megalocephala
Perityle megalocephala var. oligophylla
bighead rockdaisy, large head rock daisy, limestone rockdaisy, Nevada Rock daisy
small-leaf rock daisy, straight leaf 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 0–4 mm;
blades linear to lanceolate, 4–10(–15) × 1–4(–6) mm.
10–45(–80) mm.
campanulate.
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.
14–20, lanceolate to suboblanceolate, 5–6 × 1.3–1.9 mm.
borne singly or (2–3) in loose, corymbiform arrays, 6–9(–10) × 5–6(–8) mm.
narrowly oblanceolate to suboblanceolate, 2.5–3 mm, margins thin-calloused, short-hairy;
pappi 0, or of single bristles.
0, or of single bristles (sometimes plus callous crowns or vestigial, hyaline scales).
= 68.
Perityle megalocephala
Perityle megalocephala var. oligophylla
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety oligophylla is ephemeral in northern exposures or protected areas in mountains in the Death Valley region. At least some leaves are linear and the heads and habit are generally smaller than in var. megalocephala.
(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
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USDA Plants Database
