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

26. Aster neobiennis Brouillet, Semple & Y. L. Chen, Fl. China. 20-21: 591. 2011.

鞑靼狗娃花 da da gou wa hua

Replaced synonym: Callistephus biennis Lindley ex Candolle, Prodr. 5: 275. 1836, not Aster biennis Nuttall, Gen. N. Amer. Pl. 2: 155. 1818, nom. illeg. superfl. [Aster canescens Pursh, Fl. Amer. Sept. 2: 547. 1813]; A. hispidus Thunberg var. sibiricus (Komarov) Y. Ling; Heteropappus hispidus (Thunberg) Lessing var. sibiricus Komarov; H. meyendorffii (Regel & Maack) Komarov & Alissova-Klobukova var. tataricus (Lindley ex Candolle) Y. Ling & W. Wang; H. tataricus (Lindley ex Candolle) Tamamschjan; Kalimeris biennis (Lindley ex Candolle) Ledebour (1845), not Nees (1832); K. tatarica Lindley ex Candolle (1836), not Aster tataricus Linnaeus f. (1782).

Herbs, biennial, 20-40 cm tall. Stems erect, usually solitary, rarely 2- or 3-fascicled, branched in upper part, branches ascending, purplish or reddish, strigose to hirsute, glandular or not. Lower cauline leaves deciduous by anthesis; middle leaves lanceolate to linear-lanceolate, sometimes linear, 2-5 × 0.2-0.5 cm, strigose, eglandular or sparsely minutely glandular, margin long strigose-ciliate, apex acuminate; uppermost leaves reduced. Capitula terminal, solitary on branches, forming open corymbiform synflorescences, 25-40 mm in diam. Involucres hemispheric, 1.2-2 cm in diam.; phyllaries linear-lanceolate to lanceolate, 8-11 mm, abaxially strigose, inconspicuously glandular in lower half, margin scarious, ciliate, apex acuminate. Ray florets blue or blue-lilac, tube 2.5-3 mm, sparsely hairy, lamina 14-28 × 2-2.2 mm; disk florets yellow, sparsely hairy (tube and limb), 3.7-5 mm, tube 1.2-1.8 mm, limb narrowly campanulate, lobes lanceolate, unequal, 0.6-0.8(-1.5) mm. Achenes obovoid, (immature) ca. 2 mm, strigillose. Pappus reddish brown to yellowish, of ray and disk florets ± equal, 3-3.5 mm. Fl. Jul-Aug.

Forest understories on sandy hills, sandy riverbanks. Hebei, Nei Mongol, Shanxi [Mongolia, E Russia (E European part, Siberia)].

Aster biennis Ledebour (in Weinmann, Bot. Gart. Dorpat, Suppl. I, [1]. 1811; Franchet, Mém. Soc. Sci. Nat. Math. Cherbourg 24: 224. 1884) belongs here but is a nomen nudum and was therefore not validly published (Vienna Code, Art. 32.1(d)).


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