Ericameria teretifolia |
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green or round-leaf rabbitbrush, green rabbitbrush, round-leaf rabbitbrush |
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Habit | Plants 30–150 cm. |
Stems | erect to ascending, green when young, fastigiately branched, gland-dotted (in pits), resinous. |
Leaves | mostly ascending to spreading; blades filiform (adaxially sulcate), 10–35 × 0.5–1.5 mm, midnerves obscure, apices acute to obtuse or rounded, faces glabrous, gland-dotted (in circular, deep pits), resinous. |
Peduncles | 0.5–2 mm (bracts 0–3, mostly like outer phyllaries). |
Involucres | obconic, 5–9 × 2–5 mm. |
Ray florets | 0. |
Disc florets | 5–7; corollas 5.8–8 mm. |
Phyllaries | 16–20 in 3–5 series (in vertical ranks), tan, lanceolate to oblong, 1–7 × 0.5–1.5 mm, strongly unequal, mostly chartaceous, midnerves mostly obscure, apices acute to rounded (outer each tipped with subspheric resin-gland), abaxial faces resinous. |
Heads | in cymiform to racemiform arrays (1–3 cm wide). |
Cypselae | tan to brown, narrowly ellipsoid, 3–4 mm, sericeous; pappi off-white to brown, 6–7.5 mm. |
2n | = 18. |
Ericameria teretifolia |
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Phenology | Flowering fall. |
Habitat | Canyon walls, rocky flats, and slopes |
Elevation | 600–2400 m (2000–7900 ft) |
Distribution |
AZ; CA; NV
|
Source | FNA vol. 20, p. 76. |
Parent taxa | Asteraceae > tribe Astereae > Ericameria |
Sibling taxa | |
Synonyms | Linosyris teretifolia, Chrysothamnus teretifolius |
Name authority | (Durand & Hilgard) Jepson: Man. Fl. Pl. Calif., 1024. (1925) |
Web links |