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

4. Tanacetum barclayanum Candolle, Prodr. 6: 128. 1838.

阿尔泰菊蒿 a er tai ju hao

Pyrethrum achilleifolium M. Bieberstein var. discoideum Karelin & Kirilov; P. turlanicum Pavlov; Tanacetum turlanicum (Pavlov) Tzvelev.

Herbs, perennial, 25-50 cm tall; stems solitary, erect, unbranched or few branched from base, subglabrous. Basal leaves: petiole 2-10 cm; leaf blade ovate or narrowly elliptic, 4-8 × 2.5-4 cm, 2-pinnatisect, both surfaces sparsely pubescent or glabrous; primary lateral segments 5-paired; ultimate segments triangular, elliptic, or narrowly elliptic; stem leaves similar, sessile or shortly petiolate; leaves below capitula small, pinnatifid or undivided. Capitula solitary, terminal; peduncle 1-10 cm. Involucre coryliform, 7-17 mm in diam.; phyllaries in 4 rows, abaxially glabrous or sparsely pubescent, scarious margin brown, outer phyllaries lanceolate, ca. 3.5 mm, middle and inner ones narrowly elliptic or linear-oblanceolate, ca. 5 mm, abaxially glabrous. Ray florets red; lamina narrowly elliptic, ca. 1.6 cm, apex 2- or 3-denticulate. Achenes ca. 2.5 mm. Corona 0.1-0.2 mm, margin entire or minutely denticulate. Fl. and fr. Jun-Aug.

Thickets; 500-2100 m. Xinjiang (Altay Shan) [Kazakhstan, Russia].


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