Flora of North America species comparison

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Artemisia senjavinensis

arctic wormwood
Habit Perennials, 30–90 cm (densely cespitose), mildly aromatic (caudices branched, woody, taprooted).
Stems

1–9, erect, gray-green, lanate.
Leaves

mostly basal (in rosettes, cauline 2–5, scattered on flowering stems);

blades (basal) broadly oblanceolate, 0.5–0.8 × 0.5–0.7 cm, relatively deeply lobed (lobes 3–5, acute; cauline blades 0.5–1 cm, entire or pinnately lobed, lobes 3–5), faces densely tomentose to sericeous (hairs 1–2 mm).
Involucres

turbinate, 3–4 × 3–5 mm.
Florets

pistillate 4–5;

bisexual 3–4;

corollas yellow or tan, 1.5–2, glandular (style branches blunt, not fringed).
Phyllaries

lanceolate or ovate, hairy.
Heads

in corymbiform arrays 0.5–2.5 × 0.5–2.5 cm (subtended by white-sericeous bracts).
Cypselae

(brown) linear-oblong, ca. 2 mm, (apices flat), glabrous.
2n

= 36, 54.

Artemisia senjavinensis
Phenology Flowering mid–late summer.
Habitat Open calcareous gravelly slopes in tundra or heath, sandy slopes above high tide
Elevation 0–600 m (0–2000 ft)
Distribution
from FNA
AK; e Asia (Russian Far East, Chukotka)
[BONAP county map]
Discussion

Artemisia senjavinensis is known only from western Alaska (Seward Peninsula) and the Chukchi Peninsula of the Russian Far East.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 532.
Parent taxa Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia
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. rupestris, A. scopulorum, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
Synonyms Ajania senjavinensis, A. androsacea
Name authority Besser: Nouv. Mém. Soc. Imp. Naturalistes Moscou 3: 35. (1834)
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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