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Artemisia rupestris
L.
(redirected from:
Artemisia rupestris subsp. woodii
Neilson)
Family:
Asteraceae
Rock Wormwood
[
Artemisia rupestris subsp. woodii
Neilson]
FNA
Resources
Leila M. Shultz in Flora of North America (vol. 19, 20 and 21)
Perennials,
5-15(-25) cm (cespitose), faintly aromatic.
Stems
brownish purple, glabrous.
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.
Heads
(5-9, pedunculate or sessile, spreading or drooping) in spiciform arrays 3-9 × 0.5-1 cm.
Involucres
globose, 4-5(-7) × 4-5(-7) mm.
Phyllaries
green (margins light green), ± hairy.
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).
Cypselae
ca. 1 mm (apices flat), glabrous.
Flowering late summer-fall. Steppes, alkaline meadows, stony slopes; 0-1400 m; Yukon; Asia.
The sole North American occurrence of
Artemisia rupestris
in southwestern Yukon is a remarkable disjunction from the Asiatic range of this species.
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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