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What is burdock?

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Burdock (scientific name: Arctium lappa L.), also known as: "Shi Shi", "vigorously", "Dongyang ginseng", also known as Dongyang bullwhip vegetables. More than one thousand years ago, Japan introduced and improved food from China. When Japan occupied Taiwan, it had requested a large number of local farmers in Tainan. The main reason was that Tainan had the pine sand soil at Zeng Wen Xi, the climate of the northern regressive line and the famous Ali Mountain extension, which made the local burdock more precious, and had been used as a vegetable in Taiwan. It has been eaten for many years, and it is known as the birthplace of burdock. The genus Platycodon, a biennial herb of the Compositae with broad ovate basal leaves, 30 cm long, 21 cm wide, most or few in the head like inflorescence or panicles of conical panicles, and the achenes long oval or oblique and long oval, flattened, and pale brown. The period of flower and fruit is 6-9 months. Mainly distributed in China, Western Europe, Kashmir, Europe and other places. The main producing area of burdock in China is distributed in Jiangsu and Shandong Province, Xuzhou Fengxian County and Peixian in Jiangsu Province, Cangshan in Shandong province has a long history and large scale.

Biennial herbs with large fleshy taproot, 15 cm long, 2 cm in diameter and branched roots. Stem erect, up to 2 meters high, stout, base part diameter of 2 cm, usually with purple red or light purple red, with most high ridges, branches slanted, most, all stems are sparsely mastoid short hair and long cobbun and mixed to brown yellow small glands. Basal leaves broadly ovate, 30 cm long, 21 cm wide, sparsely wavy concave teeth or tooth tips of sparsely margin, base heart-shaped, with 32 cm long petioles, two different colors, above green, sparsely short rough hairs and small yellow glandular points, underneath gray or pale green, thin or thin, with small yellow glandular points, and leaves. The handle is grayish white, densely spider silk like villi and yellow small gland spots, but the middle lower part often depilate. Cauline leaves similar to or similar to basal leaves, with equal and equal hairs, with smaller leaves followed by inflorescence, basal segments flat or shallow heart-shaped.

Head or inflorescence most or a few on the top of stem branches into loose cymes or cone-shaped cymes, peduncle robust. Involucre ovoid or ovoid, 1.5-2 cm in diameter. The bracteoles are multilayered, many, outer triangular or lanceolate, about 1 mm wide, the middle inner layer is lanceolate or linear drilled, wide 1.5-3 mm; all bracts are nearly equal length, about 1.5 cm long, and the apex has soft bony spines. Floret purple red, corolla length 1.4 cm, thin tube minister 8 mm, eaves minister 6 mm, outside without glandular point, corolla lobes about 2 mm long.

The achenes are long oval or skewed long ovate, 5-7 mm long, 2-3 mm wide, flattened, light brown, with most veins, with dark brown spots or no stains. The coat is many, light brown; the hairs are rigid, hairy, unequal, as long as 3.8 mm, and the base is not united, forming a ring. The period of flower and fruit is 6-9 months.



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