Chrysothamnus depressus |
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dwarf rabbitbrush, long-flower rabbitbrush, low rabbitbrush |
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Habit | Shrubs, 10–50 cm; woody, highly branched caudices, proximal branches decumbent, bark tan to gray, flaky with age. |
Stems | green, becoming whitish tan, ± ridged from leaf bases, densely puberulent. |
Leaves | erect or closely ascending; sessile; blades with evident midnerves, linear to oblanceolate or narrowly oblong, 7–30 × 1.5–7 mm, flat to keeled, apices acute (often apiculate), faces glabrous or puberulent, sometimes sparsely stipitate-glandular. |
Involucres | obconic, 9–15 × 3–5 mm. |
Disc florets | 5–6; corollas 7–11 mm, lobes 1–2.1 mm; style branches 2.4–3.3 mm, appendages 1.5–2 mm. |
Phyllaries | 20–25 in 4–6 series, in 5 strong vertical ranks, tan, often with green and/or purplish markings, midnerves evident throughout and ± expanded apically, lanceolate to elliptic, 3–8 × 0.5–1.5 mm, unequal, outer often herbaceous, inner scarious, strongly keeled, apices acute to acuminate, flat, faces puberulent. |
Heads | in densely cymiform arrays, not overtopped by distal leaves. |
Cypselae | tan, subcylindric (tapering proximally), ± flattened, 5–6.5 mm, faces glabrous, sparsely glandular distally; pappi whitish tan, 5.5–7.5 mm. |
2n | = 18. |
Chrysothamnus depressus |
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Phenology | Flowering late summer–fall. |
Habitat | Dry canyons and rocky crevices |
Elevation | 1000–2700 m (3300–8900 ft) |
Distribution |
AZ; CA; CO; NM; NV; UT
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Source | FNA vol. 20, p. 189. |
Parent taxa | Asteraceae > tribe Astereae > Chrysothamnus |
Sibling taxa | |
Name authority | Nuttall: Proc. Acad. Nat. Sci. Philadelphia 4: 19. (1848) |
Web links |