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bursage mugwort, ragweed sagebrush
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Patterson sagewort, Patterson's wormwood
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| Biennials or perennials, 30–100 cm, faintly aromatic (rhizomatous). |
Perennials, 8–20 cm, mildly aromatic. |
1–3, erect, reddish brown, simple (leafy), glabrous or glabrate. |
gray-brown, glabrate or finely pubescent. |
basal (in rosettes, petiolate) and cauline, bicolor (white and green); blades ovate, 3–7(–20) × 2–4(–6) cm, 2–3-pinnately-lobed (lobes elliptic, 2–6 mm wide; cauline sessile, smaller), faces tomentose (abaxial) or glabrous or glabrescent (adaxial), glandular. |
deciduous, gray-green; petiolate; blades (basal) broadly spatulate, 2–4 × 0.5 cm, pinnately lobed (lobes ca. 1.5 mm wide; cauline smaller, 1-pinnately lobed or entire), faces silky-hairy. |
broadly ovate, 3–5 × 4–5(–6) mm. |
broadly hemispheric, 5–8 × 5–8(–10) mm. |
pistillate 4–5(–13), (1–1.5 mm); bisexual 25–35; corollas yellow, 1.5–2 mm, glabrous. |
pistillate 7–27; bisexual 32–100; corollas (yellow tinged with red), 2–3 mm (including exsert anthers), mostly glabrous (embedded in tangled receptacular hairs). |
broadly ovate, sparsely hairy. |
gray (margins dark brown to black), villous. |
(nodding, peduncles 0 or 2) in paniculiform to racemiform arrays 10–35 × 2–4 cm (often 1-sided). |
borne singly or (2–5, spreading to nodding, pedunculate) in paniculiform or racemiform arrays 1–5 × 0.5–1 cm. |
elliptic, 0.5–0.8 mm, glabrous. |
1.5–2 mm, glabrous. |
|
= 14. |
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| Flowering late summer–early fall. |
Flowering mid–late summer. |
| Open coniferous forests, mid to upper montane |
Alpine meadows |
| 2200–3100 m (7200–10200 ft) |
3500–4000 m (11500–13100 ft) |
|
AZ; CO; NM; Mexico (Chihuahua)
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CO; NM; WY |
|
Artemisia pattersonii can be distinguished from the closely related A. scopulorum by its heads being borne singly and narrower phyllary margins. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 19, p. 525. |
FNA vol. 19, p. 520. |
| Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia |
Asteraceae > tribe Anthemideae > Artemisia > subg. Absinthium |
A. abrotanum, A. absinthium, A. alaskana, A. aleutica, A. annua, A. arbuscula, A. biennis, A. bigelovii, A. borealis, A. californica, A. campestris, A. cana, A. carruthii, A. douglasiana, A. dracunculus, A. filifolia, A. frigida, A. furcata, A. globularia, A. glomerata, A. laciniata, A. longifolia, A. ludoviciana, A. michauxiana, A. nesiotica, A. norvegica, A. nova, A. packardiae, A. palmeri, A. papposa, A. pattersonii, A. pedatifida, A. pontica, A. porteri, A. pycnocephala, A. pygmaea, A. rigida, A. rothrockii, A. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris |
A. abrotanum, A. absinthium, A. alaskana, A. aleutica, A. annua, A. arbuscula, A. biennis, A. bigelovii, A. borealis, A. californica, A. campestris, A. cana, A. carruthii, A. douglasiana, A. dracunculus, A. filifolia, A. franserioides, A. frigida, A. furcata, A. globularia, A. glomerata, A. laciniata, A. longifolia, A. ludoviciana, A. michauxiana, A. nesiotica, A. norvegica, A. nova, A. packardiae, A. palmeri, A. papposa, A. pedatifida, A. pontica, A. porteri, A. pycnocephala, A. pygmaea, A. rigida, A. rothrockii, A. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris |
|
A. monocephala, A. scopulorum var. monocephala |
| Greene: Bull. Torrey Bot. Club 10: 42. (1883) |
A. Gray: in A. Gray et al., Syn. Fl. N. Amer. ed. 2, 1(2): 453. (1886) |
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SW CO Wildflowers
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