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

31. Ajania fruticulosa (Ledebour) Poljakov, Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 17: 428. 1955.

灌木亚菊 guan mu ya ju

Tanacetum fruticulosum Ledebour, Icon. Pl. 1: 10. 1829; Chrysanthemum aureoglobosum (W. W. Smith & Farrer) Handel-Mazzetti; C. neofruticulosum Y. Ling; T. aureoglobosum W. W. Smith & Farrer.

Subshrubs, 8-40 cm tall. Old branches straw-colored. Flowering branches gray-white or gray-green, densely or sparsely pubescent. Middle stem leaves petiolate, with entire pseudostipules; leaf blade orbicular, triangular-ovate, reniform, or broadly ovate, 0.5-3 × 1-2.5 cm, both surfaces gray-white or pale green, densely pubescent, bipalmately 3-5-sect or bipalmate, pinnately 3-5-sect; primary lateral segments 1- or 2-paired; ultimate segments linear-subulate, broadly linear, or narrowly oblanceolate. Lower and upper leaves narrowly oblanceolate, gradually smaller, palmately 3-5-sect. Synflorescence a terminal flat-topped panicle. Capitula few to many. Involucres campanulate, 3-4 mm in diam.; phyllaries in 4 rows, straw-colored, glossy, scarious margin hyaline, rarely brown, apex obtuse or rounded, outer ones ovate or lanceolate, ca. 1 mm, abaxially sparsely pubescent, middle and inner ones elliptic, 2-3 mm, abaxially glabrous. Florets yellow, exterior with sessile glands; marginal female florets 5-8, corolla narrowly tubular, ca. 2 mm, apex 3(-5)-denticulate; disk florets many, corolla tubular, 2-3 mm. Achenes 1.2-1.5 mm. Fl. and fr. Jun-Oct.

Deserts, desert steppes; 500-4400 m. Gansu, Jiangsu, Nei Mongol, Qinghai, Shaanxi, Xinjiang, Xizang [Kazakhstan, Mongolia, Russia, Turkmenistan].


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