Artemisia laciniata subsp. laciniata

Artemisia macrobotrys I.edeb. Fl. Alt. 4: 73. 1833
Artemisia tanacetifolia L. Sp. PI. 848, in part. 1753.
Artemisia laciniala /S WiUd. Sp. PI. 3: 1843. 1804.
Artemisia latifolia Ledeb. Mem. Acad. St.-P^tersb. 5: 569, in part. 1815.
Artemisia Krasheninnikowiana Besser, Nouv. M^m. See. Nat. Mosc. 3: 41. 1834.
A perennial, with a creeping rootstock; stem 2-4 dm. high, glabrous or sparingly pilose; lower leaves petioled; blades broadly ovate in outline, twice or thrice pinnately divided, sparingly pilose or glabrate; principal divisions spreading, obovate in outline, the ultimate ones linear-oblong, obtuse or acutish, spreading; upper leaves less divided with narrower acute divisions; heads many or several in simple or branched racemes, nodding; individual peduncles short; involucre depressed-hemispheric, 3-4 mm. high, 5-6 mm. broad; bracts sparingly villous, 15-18, in 3 series, oval, obtuse, with dark-brown or black erose margins, the outer slightly shorter; ray-flowers 10-12; corollas villous, nearly 2 mm. long; disk-flowers 30-40; corollas yellow, villous, trumpet-shaped, 3 mm. long; achenes nearly 2 mm. long.
TvTE locality: Plains on the Kerlyk River, Siberia.
Distribution: Yukon, Alaska, and Siberia.