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Artemisia pycnocephala
(Less.) DC.
Family:
Asteraceae
Beach Wormwood
FNA
Resources
Leila M. Shultz in Flora of North America (vol. 19, 20 and 21)
Perennials,
30-70(-100) cm, faintly aromatic.
Stems
usually 10+ (rising beyond basal leaves, decumbent), whitish gray, (ca. 5 mm diam., densely leafy) densely hairy.
Leaves
persistent, gray-green; blades broadly lanceolate, faces woolly-hairy; proximalmost blades 3-8 × 2-6 cm, 2-3-pinnatifid, lobes linear (to 2 mm wide); cauline somewhat reduced, 2-3 × 0.8-1.2 cm; apices acute, faces hairy.
Heads
(sessile, clustered in glomerules) in (densely leafy) paniculiform to spiciform arrays 10-20(-30) × 1-4 cm.
Involucres
globose, 3-4.5 × 3-4.5 mm
. Phyllaries
(lanceolate, margins obscured by indument, hairs straight.
Florets:
pistillate 5-20; functionally staminate 12-25; corollas pale yellow (broadly tubular), ca. 2 mm, glabrous.
Cypselae
ellipsoid (faintly nerved), 1-1.5 mm, glabrous.
Flowering late spring-mid summer. Rocky or sandy soils of coastal beaches; 0-200 m; Calif.
Open Interactive Map
Matthew Hulen
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100 Initial Images
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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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