Honeysuckle is the floorboard of Chinese herbal medicine and plants. Honeysuckle, also known as Lonicera japonica, is a perennial semi-evergreen twining woody vine of Caprifoliaceae. The name honeysuckle comes from Compendium of Materia Medica. Because honeysuckle turns white first and then yellow, it is named honeysuckle. Honeysuckle. It is the dried bud or the first flowering flower of Lonicera japonica Thunb. Honeysuckle has been known as a good medicine for clearing away heat and toxic materials since ancient times. Sweet, cold, fragrant, sweet, cold, clear without hurting the stomach, fragrant can dispel evil. Honeysuckle can not only dispel wind and clear heat, but also be good at clearing blood poison. It has obvious curative effect on various fevers such as body heat, rash, macula, toxic ulcer and sore throat. Morphological characteristics of semi-evergreen vine honeysuckle: young branches are clean red-brown, densely yellow-brown, spreading hard, rough, glandular hairy and pubescent, and the lower part is often hairless. The leaves are papery, ovoid to oblong, sometimes ovoid-lanceolate, sparsely ovoid or obovate, rarely with 65,438+0 to several blunt nicks, 3-5 (-9.5) cm long, with sharp or pointed tips, a few blunt, round or slightly concave nicks, round or nearly heart-shaped base, rough hair, dark green at the top and light green at the bottom. The upper leaves of branchlets are usually compact on both sides. Petiole 4-8 mm long, densely pubescent. The total pedicel is usually solitary in the axil of the upper part of the branchlet, as long as or slightly shorter than the petiole, 2-4 cm long below, densely covered with short and soft hairs, mixed with glandular hairs; Bracts are large, leaflike, ovate to elliptic, 2-3 cm long, pubescent on both sides or sometimes subglabrous; The tip of the bracteole is round or truncated, about 1 mm long, 1/2-4/5 of the calyx tube, with short and rough glandular hairs; The calyx tube is about 2 mm long and hairless, and the calyx teeth are oval triangle or Yangtze River Delta, with long hair at the top and dense hair on the outside and edge. Corolla is white, sometimes the base is red towards the sun, and then turns yellow, with a length of (2-) 3-4.5 (-6) cm and a lip shape. The tube is slightly longer than the lip, and rarely nearly equal in length. The outer cover is somewhat inverted or semi-unfolded, with rough and long glandular hairs, the upper lip lobes are blunt and rounded at the top, and the lower lip is banded and bent downward. Stamens and styles are higher than corolla. The fruit is round, 6-7 mm in diameter, blue-black and shiny when mature; The seeds are ovoid or ovoid, brown, about 3 mm long, with 1 raised ridges in the middle and shallow transverse grooves on both sides. The flowering period is from April to June (usually autumn), and the fruit maturity is10-165438+10. The ecological environment is born in hillside bushes or sparse forests, rock piles, foothills and village fences, with the highest altitude of 1500m. It is also often cultivated. Japan and Korea are also distributed. In North America, it escapes to form intractable weeds.