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birdfoot sagebrush, Matted sagewort
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Rothrock sagebrush, sticky sagebrush, timberline sagebrush
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| Perennials or subshrubs, 5–15 cm (cespitose), aromatic. |
Shrubs, 20–50 cm (sticky-resinous and dark green throughout), pungently aromatic; not root-sprouting (trunks relatively narrow). |
(5–20), gray-green, glabrescent. |
white (becoming dark gray with age), canescent (bark exfoliating). |
persistent, gray-green, mostly basal; proximal blades reduced, mostly less than 1 cm, lobed or entire; distal blades 1–2 × 0.5–0.8 cm, 1–2-ternately lobed, lobes 1–2 mm wide, apices acute, faces densely tomentose. |
persistent, light or dark gray-green; blades long-cuneate to lanceolate, (0.4–)1–1.5(–2) × 0.2–0.4 cm, 3-lobed (lobes to 1/3 blade lengths, rounded, margins sometimes entire, somewhat wavy), faces densely to sparsely canescent, gland-dotted, sticky-resinous. |
globose, 3–4 × 3–4 mm. |
broadly ovoid, 3–5 × 4–6 mm. |
pistillate 4–7; functionally staminate 5–9; corollas yellow, usually red-tinged, 2–3 mm, glabrous. |
12–20; corollas 2.5–3.5 mm. |
(margins scarious, obscured) white-tomentose. |
(usually gray-green) ovate, densely or sparsely canescent. |
(mostly 6–15, 1 or 3–4 on lateral branches; mostly erect, sessile or pedunculate) in racemiform-paniculiform arrays, 5–8 × 0.5–0.8 cm. |
(erect, sessile or pedunculate) in paniculiform arrays, 5–15 × 1–2(–3) cm. |
(brown) ellipsoid (angled), 0.8–1 mm, (sometimes with white ribs) glabrous. |
0.8–2 mm, (smooth), resinous. |
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= 36, 54, 72. |
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| Flowering early spring–mid summer. |
Flowering mid summer–all. |
| High plains, grasslands |
Clay soils of mountain meadows |
| 1600–1800 m (5200–5900 ft) |
2500–3100 m (8200–10200 ft) |
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CO; ID; MT; WY
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CA
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Artemisia rothrockii is known only from the central and southern Sierra Nevada and the White Mountains of California. In the Rocky Mountains, A. spiciformis has been confused with A. rothrockii. Distinctive chemistry and anatomical structure of the leaves support the distinctness of A. rothrockii (L. M. Shultz 1986b). Intermediate characteristics suggest a hybrid origin from races of A. cana and A. tridentata. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 19, p. 509. |
FNA vol. 19, p. 515. |
| Asteraceae > tribe Anthemideae > Artemisia > subg. Drancunculus |
Asteraceae > tribe Anthemideae > Artemisia > subg. Tridentatae |
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. pattersonii, 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. pattersonii, A. pedatifida, A. pontica, A. porteri, A. pycnocephala, A. pygmaea, A. rigida, A. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris |
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A. tridentata subsp. rothrockii, Seriphidium rothrockii |
| Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 399. (1841) |
A. Gray: in W. H. Brewer et al., Bot. California 1: 618. (1876) |
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USDA Plants Database
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