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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Artemisia

Artemisia lingyeouruennii L. Shultz & Boufford, Harvard Papers in Botany. 17: 21. 2012.

Herbs, perennial, with multiple flowering stems rising from a woody subterranean caudex and rooting near base, aromatic. Stems erect, 10--47 cm tall, striate with parallel lines of pubescence. Leaves sessile; blade deeply bipinnate, broadly ovate-lanceolate in outline, 1.5--4 X 0.5--2 cm, largest at midpoint on flowering stems, reduced proximally, base of leaf expanded, finely divided segments ca. 1 mm wide, grayish green, densely woolly or floccose pubescent with dolabriform trichomes, abaxially whitish green, adaxially light green. Capitulescences narrowly paniculate, with upright branches; lowermost branches to 4 cm; uppermost branches < 2 mm; heads nodding, densely clustered, 1--15 per branch, usually sessile and solitary, but sometimes in clusters of 2 or 3, subtended by a narrow bract, broadly campanulate, 3--4 X 2--5 mm; involucral bracts in 2 or 3 series, oblong to narrowly ovate, 3--4 X ca. 1 mm, base and midrib blackish purple, margins white membranous but obscured by floccose pubescence on dorsal surface; receptacle conical, glabrous; marginal florets 4 or 5, narrowly tubular, irregularly lobed, pistillate, fertile, dark reddish purple, externally glandular along length of tube; central florets 8--10, narrowly campanulate, regularly 5-lobed, perfect, fertile, light reddish purple, externally dotted with glands near base; style of marginal florets with upright linear branches and marginal stigmatic lines, light purple; style branches of central florets recurved, apically fringed, dark purple; anthers (in central florets only) 5, dark purple; cypselae glabrous, with obscure ribs, without rudimentary crown; cypselae of marginal florets obtuse, ca. 0.5 mm, pale brown; cypselae of central florets obtuse-lanceolate, 0.5--0.7 mm. Fl. Jul, fr. not seen.

* ca. 3800 m. Sichuan (Serxu).

Name appeared after publication of the family treatment for the Flora of China.

The specimens from which this species is described were collected during an expedition to a rarely-visited region of western Sichuan Province, China, in 2005. The purple florets embedded in the pale green woolly involucral bracts distinguish A. lingyeouruennii from most species of Artemisia.


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