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Views: 0 Author: Site Editor Publish Time: 2022-03-28 Origin: Site
Perennial herb, 0.25-1 m high, with underground long or short stolons. The stem is erect or scattered, branched or has corymbose branches only at the top of the stem. The stems and branches are covered with sparse hair, and the hair on the upper part and inflorescence branches is slightly more or more. Basal and lower leaves fall off at anthesis. The middle stem and leaf are ovate, long ovate or elliptic ovate, 3-7 (10) cm long and 2-4 (7) cm wide, with pinnately cleft, shallow cleft or inconspicuous division, and shallow serration at the edge. The base is truncate or slightly cordate or broadly cuneate, the petiole is 1-2 cm long, and the petiole base has no ears or divided ears. Both sides are of the same color or several colors, light green, or olive on both sides after drying, with sparse pubescence, or a little more hair below. The head is 1.5-2.5 cm in diameter, most of which are arranged into loose corymbose panicles at the top of stems and branches, or a few are arranged into corymboses at the top of stems. Involucral bracts are about 5 layers, the outer layer is ovate or ovate triangular, 2.5-3 mm long, the middle layer is ovate, and the inner layer is long oval, 11 mm long. All bracts have white or brown broad membranous margins, blunt or round tips. The tongue shaped flower is yellow, the tongue piece is 10-13 mm long, and the top is entire or 2-3 teeth. Achenes 1.5-1.8 mm long. The flowering period is from June to November.
Like cool and humid climate, cold resistant. It is suitable to cultivate in loam with deep soil layer, loose and fertile soil and rich humus. It is mostly found in hillside grassland, shrub, Riverside water wetland, coastal saline land, field edge and roadside.
Wild chrysanthemum is a polytypic species, with many ecological, geographical or eco geographical populations, showing great diversity in body shape, leaf shape, leaf order, corymbose pattern, stem and leaf coat and other characteristics. The wild chrysanthemum on the coastal saline soil of Shandong and Hebei is short in shape, dwarf in shape and thick in leaves, which is destined to be a coastal ecological type; The wild chrysanthemum in Lushan area of Jiangxi Province shows that there are more fur under the leaves; Among the wild chrysanthemums in Nanjing, Jiangsu and Zhejiang, there is a kind of chrysanthemum whose leaves turn olive after drying.
