Hazardia detonsa
Hazardia whitneyi
island bristleweed, island hazardia
Whitney's bristleweed, Whitney's goldenbush, Whitney's goldenweed
lanate-tomentose.
scabrid to sparsely tomentulose, distally stipitate-glandular.
subsessile or subpetiolate;
blades obovate, 40–140 × 10–50 mm, subcoriaceous, bases not clasping, margins serrulate to subentire, abaxial faces densely lanate-tomentose, adaxial densely short-tomentose.
sessile;
blades widely oblong to oblanceolate, 25–50 × 7–16 mm, subcoriaceous, bases subclasping (distal), margins serrate, apices acute, faces glabrous, sparsely puberulent, or glandular-scabrid.
campanulate, 10–13 × 10–13 mm.
campanulate, 11–13 × 8–12 mm.
6–14, fertile;
corollas shorter than involucre, inconspicuous.
0 or 5–18, sterile;
corollas longer than involucres, conspicuous.
30–40;
corollas 8–10 mm.
15–30;
corollas 8–10 mm.
erect, oblong, apices acute, faces densely woolly.
sometimes recurved, linear-lanceolate, apices acute, herbaceous and stipitate-glandular.
in thyrsiform to subcorymbiform heads.
borne singly or in spiciform, racemiform, or cymiform arrays.
3–4 mm, canescent.
5–10 mm, glabrous.
= 10.
Hazardia detonsa
Hazardia whitneyi
Hazardia detonsa is known from Anacapa, Santa Rosa, and Santa Cruz islands. It is little differentiated from H. cana and clearly its evolutionary sister. In both taxa, the ray and disc florets often change to red-purple with maturity.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Ray florets 0 | var. discoidea |
1. Ray florets 5–18 | var. whitneyi |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
OR
Flora NW
PNW Herbaria
