假地胆草 jia di dan cao

Elephantopus spicatus Jussieu ex Aublet, Hist. Pl. Guiane 2: 808. 1775; Distreptus spicatus (Jussieu ex Aublet) Cassini.

Herbs (40-)60-100 cm tall. Stems erect, branched, striate, sparsely hirsute or subglabrous. Leaves subsessile, slightly amplexicaul, lower leaves oblong-obovate or oblong-spatulate, 7-20 × 1-5 cm, abaxially especially hirtellous on veins and densely glandular, adaxially scabrid, sparsely scabrid hairy or subglabrous and glandular, lateral veins 8-11-paired, base attenuate, margin entire or remotely serrate, apex obtuse or shortly acute; upper leaves oblong-lanceolate, 2.5-11.5 × 0.5-1.5 cm, attenuate at both ends. Synflorescence arranged in terminal spikes. Capitula in clusters of 1-6. Involucre oblong, 10-12 × ca. 4 mm; phyllaries dark green, elliptic-oblong, ca. 10 × 2 mm, glandular, 1-veined, apex acuminate or acute. Florets: corolla white, subtubular; lobes 5, lanceolate. Achenes linear-oblong, ca. 6 mm, 10-ribbed, densely setose, glandular between ribs. Pappus setae few, ca. 4 mm, 2 setae often bent. 2n = 22*.

Grasslands. Guangdong, Taiwan [Indonesia, Malaysia, Philippines, N Thailand; native to tropical Africa and America].