Artemisia scopulorum |
Artemisia carruthii |
|
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alpine sagebrush, dwarf sagebrush |
Carruth wormwood, Carruth's sagebrush, Carruth's sagewort, Carruth's wormwood |
|
Habit | Perennials, 10–25 cm (cespitose), mildly aromatic (caudices relatively slender). | Perennials, 15–40(–70) cm, faintly aromatic (rhizomatous). |
Stems | gray-green, glabrate. |
mostly 3–8, ascending, brown to gray-green, simple (bases curved, somewhat woody), sparsely to densely tomentose. |
Leaves | persistent, gray-green; blades (basal) oblanceolate, 2–7 × 0.1 cm, 2-pinnately lobed (lobes linear or oblanceolate; cauline blades smaller, 1–2-pinnate or entire), faces silky-canescent. |
cauline, bicolor (± gray-green); blades narrowly elliptic, 0.1–2.5(–3) × 0.5–1 cm (gradually smaller distally), relatively deeply pinnatifid (lobes 3–5), faces densely tomentose (abaxial) to sparsely hairy (adaxial). |
Involucres | broadly globose or subglobose, 4 × 4–7 mm. |
campanulate, 2–2.5(–3) × 1.5–3 mm. |
Florets | pistillate 6–13; bisexual 15–30; corollas 1.5–2.5 mm, hairy (at least on lobes). |
pistillate 1–5; bisexual 7–25; corollas pale yellow, 1–2 mm, glandular-pubescent. |
Phyllaries | green (margins black or dark brown), densely villous. |
lanceolate, gray-tomentose. |
Heads | (5–22) in spiciform arrays 5–9 × 1–1.5 cm. |
(usually nodding) in (leafy) paniculiform arrays 10–30 × 3–9 cm (branches erect). |
Cypselae | 0.8–1 mm, glabrous. |
(light brown) cylindro-elliptic, ca. 0.5 mm, (curved at summits, scarcely nerved), glabrous (shining). |
2n | = 18. |
= 18. |
Artemisia scopulorum |
Artemisia carruthii |
|
Phenology | Flowering mid–late summer. | Flowering mid summer–early fall. |
Habitat | Alpine meadows, protected areas, bases of rocks | Open sites, usually sandy soils, wooded areas, grasslands, railroads |
Elevation | 3100–4200 m (10200–13800 ft) | 600–2900 m (2000–9500 ft) |
Distribution |
CO; MT; NM; NV; UT; WY
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AZ; CO; KS; MI; MO; NM; OK; TX; UT; Mexico (Chihuahua, Sonora)
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Discussion | Artemisia carruthii is closely related to members of the A. ludoviciana complex, with which it may intergrade. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 19, p. 520. | FNA vol. 19, p. 524. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. bakeri, A. coloradensis, A. kansana, A. vulgaris subsp. wrightii, A. wrightii | |
Name authority | A. Gray: Proc. Acad. Nat. Sci. Philadelphia 15: 66. (1863) | Alph. Wood ex Carruth: Trans. Kansas Acad. Sci. 5: 51. (1877) |
Web links |