Artemisia laciniata
Artemisia pygmaea
Siberian wormwood
pygmy sage, pygmy sagebrush
1–3, erect, reddish brown, simple, strigillose to spreading-hairy, or glabrous.
pale to light brown (stiffly erect, densely clothed with appressed foliage), sparsely tomentose.
basal (in rosettes, petioles to 12 cm) and cauline, greenish;
blades (basal) 2–3-pinnate, relatively deeply lobed (cauline sessile, 1–2-pinnately lobed to entire), faces sparsely hairy to pilose.
persistent (sessile, rigid), bright green;
blades oblong to ovate, 0.3–0.5 × 0.2–0.3 cm, pinnately lobed (nearly to midribs, 1/3+ widths of blades, lobes 3–7, divergent), faces glabrous or sparsely tomentose, resinous.
globose, 3–5 × 4–8 mm.
narrowly turbinate, 2–3 × 3–4 mm.
pistillate 6–8;
bisexual 20–50;
corollas yellowish or yellow to reddish-tinged, 1–2 mm, hairy (hairs tangled).
2–6;
corollas 2.5–3 mm, glandular (style branches flat, erose, exsert).
(greenish or yellowish) elliptic (margins hyaline, brownish), glabrous or sparsely hairy.
(green) narrowly lanceolate (midribs prominent), glabrous or sparsely tomentose.
(10–70, spreading to nodding, peduncles 0 or to 10 mm) in spiciform arrays 2–5 × 0.5–1 or 8–18 × 1–4 cm.
(sessile, erect) in paniculiform to racemiform arrays (1–)2–3 × 0.5–1 cm.
oblong, 0.5–1 mm, glabrous.
(prismatic) 0.4–0.5 mm, glabrous, resinous.
= 18.
Artemisia laciniata
Artemisia pygmaea
Subspecies 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Artemisia pygmaea is a distinctive, faintly aromatic shrublet, often mistaken for something other than a sagebrush. In early spring its stiff, bright green, deeply pinnatifid leaves are reminiscent of some prickly member of Polemoniaceae. After flowering, its heads and narrow panicles easily identify it as a member of Artemisia; it is unlike other members of the subgenus (which typically have 3-lobed leaves in fascicled lateral shoots). The molecular analysis by L. E. Watson et al. (2002) supported its phylogenetic alignment within subg. Tridentatae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Stems hairy; leaves mostly cauline, blades 5–20 × 1–2 cm, sparsely hairy; arrays of heads 8–18 × 1–4 cm; corollas yellowish, 1–1.5 mm | subsp. laciniata |
1. Stems glabrous; leaves mostly basal, blades of proximalmost 4–8 × 0.5–1 cm, of cauline 1.5–0.8 × 0.2 cm, sericeous; arrays of heads 2–5 × 0.5–1 cm; corollas yellow or reddish-tinged, 1.5–2 mm | subsp. parryi |
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