Hazardia squarrosa |
Hazardia stenolepis |
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saw-tooth bristleweed, saw-tooth goldenbush |
narrow scale goldenbush, serpentine bristleweed |
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Habit | Shrubs, 30–250 cm. | Shrubs, 30–100 cm. | ||||||||
Stems | usually sparsely tomentose or pilose. |
sparsely short-hispidulous. |
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Leaves | sessile; blades oblong or oblong-obovate to widely obovate, 13–35(–50) × 5–17(–24) mm, coriaceous, bases clasping to subclasping, margins spinulose-dentate (teeth in 3–13 pairs), adaxial faces glabrous to sparsely puberulent. |
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. |
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Involucres | turbinate, 8–16 × 7–10 mm. |
cuneate to very narrowly turbinate, 10–17 × 3–6 mm. |
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Ray florets | 0. |
0. |
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Disc florets | 9–30; corollas 9–11 mm. |
4–8(–10); corollas 7–9 mm. |
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Phyllaries | apically spreading to reflexed, oblong, apices with green area 1–2 mm, faces prominently stipitate-glandular (at least apically). |
stiffly erect, almost completely stramineous, linear-lanceolate, faces glabrous except minutely gland-dotted at tips. |
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Heads | borne in racemo-spiciform or glomerate-spiciform arrays. |
in densely spiciform arrays. |
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Cypselae | 5–8 mm, glabrous. |
5–8 mm, glabrous. |
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2n | = 10. |
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Hazardia squarrosa |
Hazardia stenolepis |
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Phenology | Flowering Sep–Nov. | |||||||||
Habitat | Oak-pine woods | |||||||||
Elevation | 150–2000 m (500–6600 ft) | |||||||||
Distribution |
CA; nw Mexico
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CA; Mexico (Baja California) |
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Hazardia stenolepis is distinguished by its hairy stems, glabrous, relatively small leaves, discoid heads, and long, narrow involucres with stramineous, linear-lanceolate phyllaries. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 20, p. 448. | FNA vol. 20, p. 448. | ||||||||
Parent taxa | Asteraceae > tribe Astereae > Hazardia | Asteraceae > tribe Astereae > Hazardia | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Haplopappus squarrosus | Haplopappus squarrosus subsp. stenolepis | ||||||||
Name authority | (Hooker & Arnott) Greene: Erythea 2: 112. (1894) | (H. M. Hall) Hoover: Vasc. Pl. San Luis Obispo Co., 296. (1970) | ||||||||
Web links |