Hazardia stenolepis

(H. M. Hall) Hoover

Vasc. Pl. San Luis Obispo Co.,296. 1970

Common names: Serpentine bristleweed
Basionyms: Haplopappus squarrosus stenolepis
Found in FNA Volume 20. Treatment on page 448. Mentioned on page 446.
Shrubs, 30–100 cm. Stems sparsely short-hispidulous. Leaves sessile; blades obovate to oblong, 15–25 × 5–12 mm, coriaceous, bases subclasping, margins coarsely spinulose-dentate or -serrate (with 5–11 pairs of teeth), faces glabrous. Heads in densely spiciform arrays. Involucres cuneate to very narrowly turbinate, 10–17 × 3–6 mm. Phyllaries stiffly erect, almost completely stramineous, linear-lanceolate, faces glabrous except minutely gland-dotted at tips. Ray florets 0. Disc florets 4–8(–10); corollas 7–9 mm. Cypselae 5–8 mm, glabrous. 2n = 10.

Phenology: Flowering Sep–Nov.
Habitat: Oak-pine woods
Elevation: 150–2000 m


Calif., Mexico (Baja California).


Hazardia stenolepis is distinguished by its hairy stems, glabrous, relatively small leaves, discoid heads, and long, narrow involucres with stramineous, linear-lanceolate phyllaries.



Facts about "Hazardia stenolepis"
AuthorW. Dennis Clark +
BasionymHaplopappus squarrosus stenolepis +
Common nameSerpentine bristleweed +
Elevation150–2000 m +
HabitatOak-pine woods +
IllustratorBarbara Alongi +
PhenologyFlowering Sep–Nov. +
ReferenceNone +
Taxon nameHazardia stenolepis +
Taxon parentHazardia +
Taxon rankspecies +
VolumeVolume 20 +