Written by Maggie
Mar 19 2021
Cynanchum auriculatum is a plant belonging to the genus Oryza in the family Oryphidaceae. Cynanchum auriculatum is found in India, Taiwan, and the provinces of Fujian, Hunan, Guangxi, Anhui, Jiangxi, Jiangsu, Xizang, Henan, Sichuan, Guizhou, Shandong, Shaanxi, Hubei, Yunnan, Gansu, Hebei, Zhejiang, and Guangdong.
Cynanchum auriculatum is a twining perennial herb with slightly pubescent whole plant and hypertrophic root tubers underground.
Cynanchum auriculatum is a vine subshrub; The perennial roots are hypertrophic and massive; Stems are rounded, puberulent. Leaves are opposite, membranous, puberulent, broadly ovate to ovate-oblong, 4 -- 12 cm long and 4 -- 10 cm wide, apex shortly acuminate, base cordate.
Cynanchum auriculatum cymes are with 30 flowers; Calyx lobes are ovate-oblong; Corolla is white, radiate, lobes reflexed, inner mask pubescent; Corolla is shallowly cup-shaped, lobes elliptic, fleshy, obtuse, with a triangular ligulate scale in the middle of the inner surface of each lobe; Pollen blocks are 1 in each chamber, pendulous; Stigma is conical, apical 2-lobed.
Follicles of Cynanchum auriculatum twin, lanceolate, 8 cm long, 1 cm in diameter; Seeds are ovate-elliptic; Seed coat is white silky.
Cynanchum auriculatum is found in hillsides and roadside shrubs at altitudes of 1000 -- 3500 m.
Cynanchum auriculatum is found in Shandong, Hebei, Henan, Shaanxi, Gansu, Xizang, Anhui, Jiangsu, Zhejiang, Fujian, Taiwan, Jiangxi, Hunan, Hubei, Guangdong, Guangxi, Guizhou, Sichuan, Yunnan and other provinces. Growing from low coastal areas up to 3500m on slopes, forest margins and roadside shrubs or on rivers, ditches and wetland. India has it too.
The type specimen of Cynanchum auriculatum was collected from India.
Cynanchum auriculatum can clear heat, moisten the lung and relieve cough. It can cure neurasthenia, stomach and duodenal ulcer, nephritis, edema and so on.
Root tuber of Cynanchum auriculatum can be used medically. It has the effect of clearing heat, moistening lung and relieving cough, and can cure neurasthenia, stomach and duodenal ulcer, nephritis, edema, gastrodyspepsia, abdominal pain, infantile malnutrition and dysentery. Cynanchum auriculatum has external use for venomous snake bite, whitlow boils.
Roots contain spasmodic Cynanchox toxin.
Cynanchum auriculatum is listed as a poisonous plant in the Chinese Plant Atlas Database. Its toxicity is root toxicity. Symptoms of poisoning include salivation, vomiting, cramps, dyspnea, slow heartbeat and so on. Roots poison mice and sparrows.