Introduction of Epilobium Herb in Epilobium sect:(27).Epilobium clarkeanum Hausskn.
✵The article gives records of the herb (27).Epilobium clarkeanum Hausskn., its English name, Latin name, common names, property and flavor, its botanical source plant species, with a detailed introduction to the botanical features of this plant species, the growth characteristics, and ecological environment of this plant species.
Epilobium sect:(27).Epilobium clarkeanum Hausskn.
Introduction: Epilobium sect is a section in the Epilobium genus of the Onagraceae family (evening primrose family), perennial herbs, upright, ascending, or prostrate. Stems are cylindrical or quadrangular. Leaves are opposite (occasionally whorled) at least below inflorescence and alternate sparsely spirally (E. sinense H. Lev.). Flowers are actinomorphic, parallel to the stem axis when blooming; flower tube exists; petal apex is concave to deeply 2-lobed; stamens vary in length in 2 whorls, pollen grains are yellow, pollinated by quadruple pollen; style is always upright; stigma is usually entire, clavate to capitate, as long as or higher than stamens, sometimes 4-lobed and higher than stamens.
Botanical description: Epilobium clarkeanum Hausskn is classified in the Epilobium genus, of the Onagraceae family, it is commonly known as Elegant willow herb.
Epilobium clarkeanum Hausskn is a perennial herb, often sparsely clumps, short root suckers grow from above ground or underground stem base, scale leaves persisting at the base the following year, coriaceous, brown, narrowly obovate to spatulate (spoons-shaped), 4~7 mm long, 2~3 mm wide, the apex is obtuse; the stem is upright or ascending, 10~20 cm high, 0.8~2 mm thick, unbranched, sometimes branched at base, sparsely pubescent around the upper part, lower part is gradually glabrous, ridges inconspicuous.
The leaves are opposite, alternate on the inflorescence, leaves in the middle of the stem are ovate-elliptic, ovate in the upper part, often obovate in the lower part, 1.1~1.6 cm long, 0.5~0.8 cm wide, the apex from the lower part of the stem to the upper leaves are obtuse to nearly sharp, the base is cuneate to suborbicular, margin with 3~8 shallow teeth on each side, lateral veins 3~4 on each side, inconspicuous, pubescent on veins and margin, rest is glabrous; petiole is 1~2 mm long or subsessile; inflorescences are pendulous, sparsely pubescent.
Capsular fruit is 3.5~4 cm long, sparsely curly pubescent; fruit pedicel is 0.6~0.7 cm long; seeds are narrowly obovate or nearly prismatic, 0.8~0.9 mm long, 0.3~0.35 mm in diameter, apex has short rostrums (beaks), light brown, with a fine mesh on the surface; the tassels are white, 4.5~5 mm long, easy to fall off; its flowering period is April to July, the fruiting period is from July to August.
Ecological environment: Epilobium clarkeanum Hausskn grows in wet places near the lake in mountainous areas with a latitude of 3,600~4,500 meters above sea level, the plant grows in Yunnan of China, it also grows in northern Myanmar, Sikkim.
The distribution of Epilobium clarkeanum Hausskn is rare, its appearance is similar to Epilobium pengii C.J. Chen, Hoch & Raven in Taiwan.
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1.Introduction of Epilobium Herb in Epilobium sect:(27).Epilobium clarkeanum Hausskn.