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Naturalized flora of The Morton Arboretum
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Artemisia globularia
Cham. ex Besser
Family:
Asteraceae
Boreal Wormwood
FNA
Resources
Leila M. Shultz in Flora of North America (vol. 19, 20 and 21)
Perennials,
(3-)5-16(-30) cm (cespitose), faintly aromatic (not rhizomatous, taproots stout, caudices simple or branched, proximal branches clothed with persistent leaf bases).
Stems
1-5, erect, whitish gray, densely tomentose.
Leaves
mostly basal (cauline 1-4), greenish to whitish green; blades (basal) 1-4.5 × 0.6-1.5 cm, 1-2-ternately to palmately lobed (flowering-stem blades 3-lobed), faces sparsely hairy.
Heads
(2-20, peduncles 0 or to 25 mm) in subcapitate to capitate arrays 2-3 × 2-3 cm.
Involucres
campanulate or hemispheric, 3.5-6 × 6-11 mm.
Phyllaries
lanceolate (margins brown), pilose.
Florets:
pistillate 9-10; bisexual 20-30; corollas yellow or reddish black, 2-3 mm, sometimes glandular.
Cypselae
oblong, 1.5-2.5 mm, (apices flattened) glabrous.
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