缢苞麻花头 yi bao ma hua tou

Serratula strangulata Iljin, Izv. Glavn. Bot. Sada S.S.S.R. 27: 89. 1928; Klasea strangulata (Iljin) Kitagawa.

Herbs 40-100 cm tall. Rhizomes procumbent. Stem unbranched or sparingly branched from middle and branches erect. Petiole of basal and lower stem leaves 4-10 cm; leaf blade elliptic, oblanceolate-elliptic, or oblanceolate in outline, 10-20 × 3-7 cm, lyrately pinnatipartite or pinnatipartite, rarely undivided; lateral lobes 3-7 pairs, elliptic to triangular, margin toothed, few toothed, or entire. Middle stem leaves sessile, similar in form and same in division as basal and lower stem leaves; lateral segments usually at right angle or nearly so, narrowly triangular, linear-triangular, or lanceolate, 0.5-1.5 cm wide, margin entire or distantly toothed. Upper stem leaves linear, margin entire. Peduncles (10-)15-40 cm. Capitula 1 or few. Involucre hemispheric, (1.5-)2-3 cm in diam., conspicuously constricted, base rounded. Phyllaries imbricate, in 7 or 8 rows; outer and middle phyllaries yellowish, blackish green striate toward apex, dark purple at margin, ovate, ovate-lanceolate, or elliptic, 6-13 × 3-5(-6) mm, leathery, apex acute and with a ca. 1 mm apical spinule; inner and innermost phyllaries elliptic to linear, 14-22 × 2-5 mm, transitioning into appendage; appendage straw-colored, linear to linear-lanceolate, bent outward, margin slightly revolute. Fl. and fr. Jun-Sep.

● Mountain slopes, grasslands, riversides, farmlands; 1300-3500 m. S Gansu, W Henan, Nei Mongol, Ningxia, Qinghai, S Shaanxi, Shanxi, N Sichuan.