莽山紫菀 mang shan zi wan

Herbs, perennial, 17-30 cm tall; rhizomes ± robust. Stems erect, ± densely yellowish strigose, more so upward, stipitate glandular on peduncles. Leaves moderately to densely strigose, ± with dense sessile glands, adaxially densely strigose, abaxially midvein slightly prominent, lateral veins 3- or 4-paired, obscure; lower leaves withered by anthesis; middle leaves sessile or shortly petiolate (petiole less than ca. 2 mm); blade oblong to obovate-oblong, 2.2-2.5 × 0.3-1.1 cm, base cuneate to rounded, margin entire, revolute, scabrous-ciliate, apex obtuse to rounded; upper leaves gradually reduced, 0.8-1 × 0.4-0.6 cm. Capitula in paniculate-corymbiform synflorescence, ca. 1.5 cm in diam.; peduncles 1-3 cm; bracts oblanceolate. Involucres hemispheric (broadly obconic), 4-5 × ca. 7 mm; phyllaries 3-seriate, subequal, obovate-oblong, abaxially strigose, with sessile glands, margin strigose- to ± villous-ciliate; outer phyllaries reflexed, ca. 4 × 1-1.5 mm, leaflike or distally leaflike, apex obtuse to acute; inner phyllaries 4-4.5 × ca. 1 mm, acute, margin scarious, erose, ciliate. Ray florets 14-16, white, tube 1-1.3 mm, lamina 6-7 × 1.5-1.8 mm; disk florets 4-4.2 mm, tube 1.1-1.5 mm, upper tube and limb base hairy, limb campanulate, lobes lanceolate, ca. 0.7 mm, recurved, glandular. Achenes greenish, oblanceolate, slightly compressed, slightly trigonous, 1.9-2.3 mm, sparsely strigillose, with sparse sessile glands, pale 3-ribbed. Pappus 3-seriate, orangish; outer bristles ca. 0.4 mm; inner bristles ca. 5.6 mm; innermost bristles ca. 7.2 mm, barely clavate.

● S Hunan (Yizhang: Mang Shan).