裸果羽叶菊 luo guo yu ye ju

Senecio concinnus Franchet, J. Bot. (Morot) 10: 418. 1896.

Stems solitary, erect, 35-70 cm tall, slender, subglabrous. Basal leaves shed by anthesis; stem leaves petiolate; petiole 1-2 cm, slender, glabrous; blade ovate or ovate-oblong, 4-12 × 1.5-4.5 cm, membranous, abaxially sparsely puberulent, adaxially glabrous, deeply pinnatipartite with 4-6 lobes on each side; lateral lobes obovate-oblong and 2- or 3-lobulate, or linear and entire, basally cuneate, apex mucronate; terminal lobe subequaling lateral ones. Capitula 1-3(-6), terminal, lax; peduncles 1-2 cm, slender, sparsely puberulent. Involucres depressed-campanulate, ca. 5 × 5-7 mm; phyllaries ca. 13, subuniseriate, oblong-lanceolate. 4-5 × ca. 1 mm, herbaceous, externally glabrous, with scarious margins and minutely puberulent or ciliate tips, 3-5-veined, apex acute or acuminate. Ray florets ca. 13; corolla tube ca. 1.5 mm; lamina pale yellow, linear-oblong or linear, 7-8.5 × 1.3-1.8 mm, 4-veined, apically shortly 3-dentate. Disk florets many; corolla yellow, 2.5-3 mm, with tube ca. 1 mm and campanulate limb; lobes 5, equal, ovate-triangular, ca. 0.8 mm. Anthers ca. 1 mm, obtuse to rounded at base. Style branches ca. 0.5 mm. Achenes (immature) narrowly cylindric, 1.5-1.7 mm, sparsely hispidulous. Pappus absent. Fl. Jul.

● Woods; ca. 1900 m. Chongqing (Chengkou).