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birdfoot sagebrush, Matted sagewort

Habit Perennials or subshrubs, 5–15 cm (cespitose), aromatic.
Stems

(5–20), gray-green, glabrescent.

Leaves

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.

Involucres

globose, 3–4 × 3–4 mm.

Florets

pistillate 4–7; functionally staminate 5–9;

corollas yellow, usually red-tinged, 2–3 mm, glabrous.

Phyllaries

(margins scarious, obscured) white-tomentose.

Heads

(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.

Cypselae

(brown) ellipsoid (angled), 0.8–1 mm, (sometimes with white ribs) glabrous.

Artemisia pedatifida

Phenology Flowering early spring–mid summer.
Habitat High plains, grasslands
Elevation 1600–1800 m (5200–5900 ft)
Distribution
from FNA
CO; ID; MT; WY
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 19, p. 509.
Parent taxa Asteraceae > tribe Anthemideae > Artemisia > subg. Drancunculus
Sibling taxa
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
Name authority Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 399. (1841)
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