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

5. Gamochaeta norvegica (Gunnerus) Y. S. Chen & R. J. Bayer, Fl. China. 20-21: 777. 2011.

挪威合冠鼠麴草 nuo wei he guan shu qu cao

Basionym: Gnaphalium norvegicum Gunnerus, Fl. Norveg. 2: 105. 1772; Omalotheca norvegica (Gunnerus) Schultz Bipontinus & F. W. Schultz; Synchaeta norvegica (Gunnerus) Kirpicznikov.

Herbs, perennial, 10-40 cm tall. Rhizome cylindric, thin, mainly 2-3 mm in diam. Stems solitary, very rarely 2 or several, erect, gray tomentose pubescent, relatively sparsely foliate. Leaves lanceolate, upper ones sessile or subsessile, middle ones with attenuate base, to a long petiole; blade greenish and not densely arachnoid tomentose adaxially, gray-green or more often gray and rather dense arachnoid tomentose or floccose-tomentose abaxially, at least in lower leaves, in which broadest part of lamina usually reaches 8-12 mm in width, 3 veins clearly distinct. Capitula narrowly campanulate, 5-8 × 4-7 mm, aggregated at stem apex to form a dense compact spiciform synflorescence, with apical leaves usually prominent. Phyllaries 20-25, mostly 3-seriate; outer ones ovate, shorter than inner ones; inner ones lanceolate or oblong, abaxially green below, in upper part and at margin brown or fuscous, membranous (scarious). Florets usually 35-45 per capitulum, of which bisexual ones are few (usually 4 or 5). Achenes brown, cylindric, ca. 1.5 mm, distinctly costate, with short white (transparent) hairs. Pappus very thin, basally united into a ring, silky white with slightly crenate hairs, approximately as long as corolla. Fl. Jul-Sep. 2n = 56.

Alpine meadows. Xinjiang [Russia; Europe, North America].


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