Introduction of Epilobium Herb in Epilobium sect:(15).Epilobium cylindricum D.Don.
✵The article gives records of the herb (15).Epilobium cylindricum D.Don., 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:(15).Epilobium cylindricum D.Don.
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 cylindricum D.Don. is classified in the Epilobium genus, of the Onagraceae family., it is also known as the west-china willow herb.
Epilobium cylindricum is a perennial stout herb, upright, with a thick big stem and many long fibrous fine roots, which produces leafy root sucker or scattered rosette-shaped seedlings from the base of the stem. Stems are cylindrical, often lignified near the base, 10~110 cm high, 3~9 mm thick, with many branches at the upper part, villous around the upper part, and glabrous at the lower part, but with inconspicuous ridges.
Leaves are opposite, alternate on inflorescence, green, turns red in flowering period, narrowly lanceolate to linear, 3~12 cm long and 0.4~2 cm wide, with a sharp apex and cuneate (wedge-shaped) base, with 20~30 or 50 serrations on each side of the edge, villous on the veins and sparsely villous on both sides of the edges, and 4-5 lateral veins on each side; the petiole is 3~7 mm or 10 mm long. The inflorescence is upright, densely covered with curly pilose, rare few glandular hairs.
Flowers are nearly upright; The bud is egg-shaped, 2.5~4.5 mm long and 2~2.5 mm in diameter; Ovary is 1.2~3.5 cm long, densely villous, usually without glandular hairs; Pedicel length is 0.5~1.5 cm; The pedicel is 1~1.5 cm long, 1.3-2 mm in diameter, and the throat is nearly glabrous; Sepals are lanceolate, carinate (cariniform), 3~5 mm long and 1~1.3 mm wide; Petals are pink to rose-purple, pale white, inverted cordate, 3.6~7 mm long, 1.8~4 mm wide, and 0.8~1 mm deep at the apex; Anthers are oblong-ovate, 0.5~0.7 mm long and 0.3~0.4 mm in diameter; The length of the outer filament wheel is 2.2~4 mm, and the length of the inner filament wheel is 1~2.4 mm; Style is white, 2~4 mm long, upright, glabrous; Stigma is white, capitate, or broadly clavate, 0.8~2.2 mm long, 0.6~1.8 mm in diameter, as long as outer stamens. The capsular fruit is 4~8.5 cm long, somewhat pilose; the carpopodium (fruit stalk) is 0.5~1 or 2.5 cm long. Seeds are narrowly obovate, 0.8~1 mm long, 0.32~0.45 mm in diameter, rounded tip, inconspicuous rostrum (beak), brown, papillate on the surface; The tassel is gray, 5~8 mm long, and easy to fall off. The flowering period is from June to September, fruiting from July to October or December.
Ecological environment: Epilobium cylindricum grows in the middle west, the upper reaches of the Yangtze river, west-south, and southeastern Tibet of China. The plant grows in areas with a latitude of 400 ~ 1,300 ~ 3,300 meters above sea level, in wet places such as hillsides, forest edges, valleys, marshes, and lakes. It also grows in South Asia, Pakistan, Nepal, Sikkim, Bhutan, and the Tianshan Mountains in Kyrgyzstan and Uzbekistan in the west.
This species Epilobium cylindricum is similar to Epilobium tibetanum Hausskn., Epilobium sinense H.Lev., Epilobium platystigmatosum C. Robinson, etc., and these species all belong to the flora of China-Himalayan.
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1.Introduction of Epilobium Herb in Epilobium sect:(15).Epilobium cylindricum D.Don.
✵The article gives records of the herb (15).Epilobium cylindricum D.Don., 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.
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.
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