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

18. Scorzonera pusilla Pallas, Reise Russ. Reich. 2: 744. 1773.

细叶鸦葱 xi ye ya cong

Scorzonera astrachanica Candolle; S. circinnata Pallas, nom. illeg. superfl.; S. popovii Lipschitz; Takhtajaniantha pusilla (Pallas) Nazarova.

Herbs 5-20 cm tall, perennial, with a globose tuber to some cm below surface. Caudex with pale brown adaxially lanate leaf sheath residues becoming somewhat lacerate and subfibrous with age. Stems few, slender, erect, usually apically branched, sparsely pubescent or glabrescent, leafy. Basal leaves linear to filiform-linear, 1-1.5 × 0.1-0.3 cm, arachnoid hairy, margin flat, apex acuminate and often somewhat hooked. Stem leaves similar to basal leaves. Synflorescence sparsely corymbiform, with few capitula or capitulum solitary. Involucre narrowly cylindric, ca. 1.8 × 0.5-0.7 cm at anthesis, prolonged in fruit. Phyllaries abaxially arachnoid hairy; outermost phyllaries ovate, ca. 5 × 3.5 mm, apex acute. Florets yellow. Achene cylindric, ca. 8 mm, with smooth ribs, glabrous. Pappus dirty white, ca. 2.3 cm, plumose for most of length. Fl. and fr. Apr-Jul. 2n = 14.

Rocky mountain slopes, gravelly deserts, sandy soils, semiconsolidated sand dunes, saline-alkaline areas, roadsides, wastelands, mountain plains, alluvial plains; 500-3400 m. Xinjiang [Afghanistan, Kazakhstan, Kyrgyzstan, Mongolia, Pakistan, Russia (SE European part), Tajikistan, Turkmenistan, Uzbekistan; SW Asia].


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