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sagebrush

Aleutian wormwood

Habit Perennials, 5–15(–25) cm (cespitose), faintly aromatic. Perennials, 5–10 cm (cespitose), mildly aromatic; caudices branched.
Stems

brownish purple, glabrous.

usually 1, reddish brown to gray, tomentose to glabrate.

Leaves

deciduous, bright green;

blades (proximalmost petiolate) ovate, 1.5–5 × 1–2.5 cm, 2–3-pinnately lobed (cauline sessile, ternately or pinnately lobed, terminal lobes lance-linear, 1–6 × 0.5–1 mm), faces glabrous or sparsely hairy, glandular.

persistent, mostly basal, gray-green; (petioles often expanded) blades (at least proximal) obovate, 1.5–5 × 0.5–1 cm, 2-palmately lobed, lobes relatively narrow, apices acute, faces densely white-villous (brownish in age);

cauline smaller, distally 1-ternate.

Involucres

globose, 4–5(–7) × 4–5(–7) mm.

hemispheric or globose, (2–)5–7 × (2–)6–8 mm.

Florets

pistillate 14–16 (glandular, style branches exsert, linear, spreading);

bisexual 40–70;

corollas 1.5–2 mm, glabrous or glandular (styles shorter than corollas).

pistillate 4–6; functionally staminate 15–30;

corollas purplish red, 1.5–2 mm, hairy.

Phyllaries

green (margins light green), ± hairy.

villous.

Heads

(5–9, pedunculate or sessile, spreading or drooping) in spiciform arrays 3–9 × 0.5–1 cm.

(sessile or peduncles 2–15 mm) in racemiform or spiciform arrays, 1.5–3 × 0.5–1 cm.

Cypselae

ca. 1 mm (apices flat), glabrous.

oblong, ca. 1 mm, faintly nerved, glabrous.

Artemisia rupestris

Artemisia aleutica

Phenology Flowering late summer–fall. Flowering mid–late summer.
Habitat Steppes, alkaline meadows, stony slopes Open areas, fellfield tundra
Elevation 0–1400 m (0–4600 ft) 0–100 m (0–300 ft)
Distribution
from FNA
YT; Asia
[BONAP county map]
from FNA
AK
[BONAP county map]
Discussion

The sole North American occurrence of Artemisia rupestris in southwestern Yukon is a remarkable disjunction from the Asiatic range of this species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

Artemisia aleutica is known only from the western Aleutian Islands. It is morphologically similar to A. borealis, and the relationships of these species complexes warrant further study.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 19, p. 520. FNA vol. 19, p. 505.
Parent taxa Asteraceae > tribe Anthemideae > Artemisia > subg. Absinthium 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. pedatifida, A. pontica, A. porteri, A. pycnocephala, A. pygmaea, A. rigida, A. rothrockii, 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. 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. rothrockii, A. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
Synonyms Absinthium viridifolium var. rupestre, A. rupestris subsp. woodii
Name authority Linnaeus: Sp. Pl. 2: 847. (1753) Hultén: Bot. Not. 1939: 829, fig. 2. (1939)
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