Latin name Cirsium Eriophoroides (Hook.F.) Petrak

Prototype compositae

morphological character

Tall perennial herb with a height of1-3.5m.. The stem base is 1.5 cm in diameter, covered with sparse multicellular long-knot hairs and spider silk hairs, and the upper part is branched. The middle and lower stems and leaves are oblong, 20-35 cm long and 8- 15 cm wide, pinnately lobed, half-lobed or with large spiny teeth on the edge, with long or short petioles, wide and flat petioles, and barbed teeth or needles on the edge; The lateral lobes are semi-oval, semi-circular or oval, with many edges, but usually 2-5 pricked teeth, or 2-5 pricked teeth at the edges, with needles at the top of the teeth, all of which are 5- 15 mm long, but the needles at the tooth edges are short and sparse; The upper leaves are gradually smaller, which are isomorphic or lanceolate with the middle and lower stems and leaves, and are equally divided, sessile or semi-hugging with ear-shaped expansion at the base. All stems and leaves are thin, papery, with the same color on both sides, green or slightly pale below, with sparse needling or little needling on the top, hairless on the bottom until there are multicellular long or short knots along the veins and sparse spider silk hairs, and few leaves have neither needling on the top nor spider silk hairs on the bottom, and the needling on the leaf surface is 3-8 mm long. The head is drooping or erect, and arranged in an umbrella-shaped inflorescence at the top of the stem and branch. The involucre is spherical, covered with dense and fluffy cotton wool, with a diameter of 5 cm, bracts at the base, linear or lanceolate bracts, and long needles at the edge. The involucral bracts are nearly 6 layers, nearly equal in length, arranged in a tweezer shape or at least not in an obvious imbricate shape. The middle and outer layers are acicular or triangular in shape, 2-3 cm long, and the drill-like part is 1.5-2 cm long, with bristles on the back. The inner layer and innermost layer are linear lanceolate to linear drilling, with a length of 3.5 cm, and the drilling part is 1.5 cm long. The floret is purple, the corolla is 3.5 cm long, the eaves are 1.3 cm long, ranging from 5-lobed, and the tubules are 2.2 cm long. Achenes are oblanceolate and oblong, 5 mm long and 2 mm wide, dark brown, and truncated at the top. The crown hair is dirty white or light brown, multi-layered, and the base is connected into a ring and falls off as a whole; The crested bristles are feathery and 2.5 cm long, tapering to the top. The flowering and fruiting period is July 7- 10/October.

geographical distribution

Distributed in Sichuan (Mianning), northwestern Yunnan (Gongshan) and southeastern Tibet (Lulang, Linzhi, Bomi, Maitong, Medog, Chayu, etc.).

ecological environment

Born in hillside thickets or thickets or hillside grasslands, meadows, floodplains or watersides, with an altitude of 2080-4 100 meters.

another name

Sargassum macrophyllum

Making medicine-Stichopus japonicus.