Perityle megalocephala
Perityle megalocephala var. megalocephala
bighead rockdaisy, large head rock daisy, limestone rockdaisy, Nevada Rock daisy
large head rock daisy, Nevada 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 1–6 mm;
blades ovate, lanceolate-ovate or elliptic to suborbiculate, 4–8(–12) × 3–9(–12) 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.
callous crowns or of vestigial, hyaline scales.
= 34.
Perityle megalocephala
Perityle megalocephala var. megalocephala
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety megalocephala is relatively common, growing usually in volcanic, also granitic and limestone rock in arid mountains of western and south-central Nevada and adjacent California. The lack of rays and pappus bristles separates var. megalocephala from the similar Perityle stansburii.
(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
