Flora of North America species comparison

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Artemisia alaskana

Alaska wormwood, alaskan sagebrush, Siberian wormwood
Habit Perennials or subshrubs, 15–30(–60) cm (not cespitose), aromatic (caudices woody).
Stems

1–10, erect, gray-green, simple (suffrutescent from woody offsets), densely hairy to glabrescent.
Leaves

basal and cauline, mostly gray-green;

blades obovate, 1.5–5 × 0.5–1.5 cm, 3-lobed to 2-ternately lobed (lobes 0.5–3 mm wide, margins flat; cauline leaves smaller, sometimes entire), faces tomentose.
Involucres

broadly campanulate, 3.5–5 × 6–9 mm.
Florets

pistillate 8–10;

bisexual 20–45;

corollas yellow, 2–2.5 mm, glabrous or glandular.
Phyllaries

ovate (margins brownish or hyaline), tomentose.
Heads

(peduncles 0 or to 30 mm) in (leafy) paniculiform to racemiform arrays 12–25 × 1–4.5 cm.
Cypselae

ellipsoid (flattened), 1–1.5 mm, glabrous.
2n

= 18.

Artemisia alaskana
Phenology Flowering early–late summer.
Habitat Well-drained soils, flood plains, gravel stream banks, roadsides, dry, rocky slopes, forest openings, alpine and arctic tundras
Elevation 100–2500 m (300–8200 ft)
Distribution
from FNA
AK; BC; NT; YT
Discussion

As circumscribed here, Artemisia alaskana is known from northwestern North America. The type specimen of A. alaskana is atypical, with longer peduncles and narrower leaf lobes than are found in most populations.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 523.
Parent taxa Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia
Sibling taxa
A. abrotanum, A. absinthium, 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. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
Synonyms A. tyrrellii
Name authority Rydberg: in N. L. Britton et al., N. Amer. Fl. 34: 281. (1916)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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