Introduction of Epilobium Herb in Epilobium sect:(9).Epilobium tianschanicum Pavlov.
✵The article gives records of the herb (9).Epilobium tianschanicum Pavlov., 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.
Botanical description: Epilobium tianschanicum Pavlov is classified in the Epilobium genus, of the Onagraceae family, it is known as the Tianshan willow herb. Epilobium tianschanicum Pavlov is a perennial tufted herbaceous plant, overwintering succulent root suckers, or leafy rosette buds grow from the base of stems, leaves turn brown the following year and sparsely grow on rhizomes. The stem is 30~50 cm high, 3~4 mm thick, unbranched, and its base often inclines outward, turn purple or brown in autumn, and the upper part is villous around, while the lower part is nearly glabrous except the ridge line. Leaves are opposite, alternate on inflorescence, narrowly ovate or lanceolate, 3~5 cm long and 0.9~1.4 cm wide, with sharp apex, orbicular (subrotund) or wide cuneate (wedge-shaped) base, 14~25 fine-pitch teeth on each edge, 4~5 lateral veins on each side, and sparse villous hairs on both veins and edges; the petiole is 2~4 mm long. The inflorescence is slightly pendulous, covered with surrounding bent villous.
Flowers are upright, bud is oval oblong, 3.5~4.2 mm long, diameter is 1.8~2.4 mm, covered by curving villous hairs; Ovary is 1.5~2.5 cm long, densely villous; The flower stalk is 0.7~2 cm long, the flower tube is 1~1.2 mm long, the diameter is 2~2.2 mm, and the throat has a ring of long pilose; Sepals are oblong-lanceolate, 4~5.5 mm long, 1~1.2 mm wide, somewhat carinate (cariniform) on the back, sparsely villous; petals are rose-purple, obovate, 5.5~6.5 mm long, 2.5~3 mm wide, and the apex is concave and 0.7~1 mm deep; The length of the outer filament wheel is 2.5~3.5 mm, and the length of the inner filament wheel is 1.5~2.5 mm; Stamens are oblong, 0.7~6.8 mm long and 0.4~0.5 mm in diameter; Style is upright, 3~3.8 mm long, glabrous; Stigma is clavate, sparsely capitate, 1.3~1.6 mm high, 0.8~1.1 mm in diameter, the apex is entire, sparsely dentate, nearly as long as a long whorl of stamens.
Capsular fruit is 4~6 cm long, and sparsely villous; The carpopodium (fruit stalk) is 1.5~2.9 cm long. The seeds are narrowly obovate, 1~1.3 mm long, 0.38~0.46 mm in diameter, round at the top, with a short rostrum (beak), and brown, indicating a rough papilla; The tassel is gray, 6~7 mm long, and easy to fall off. Its flowering period is from July to August and fruiting from August to September.
Difference: Epilobium tianschanicum Pavlov is similar to Epilobium roseum Schreber, so it was often mistaken for the latter in the past. The main difference is that the pedicel of this species is longer, about 1.5~2.9 cm, the petiole is shorter, about 2~4 mm, and the stem and inflorescence have no glandular hairs. The carpopodium (fruit stalk) of Epilobium roseum Schreber is 0.6~1.5 cm long, the petiole is 3~15 mm long, and the stem and inflorescence are covered with villous and glandular hairs.
Ecological environment: Epilobium tianschanicum Pavlov grows in the wet places of mountain valleys and streams at altitudes of 1,000~1,700 meters. It is an endemic species of the Tianshan Mountains, it grows in the Tianshan Mountains area of China, and the Tianshan Mountains area of Kazakhstan, Uzbekistan, and Kyrgyzstan.
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1.Introduction of Epilobium Herb in Epilobium sect:(9).Epilobium tianschanicum Pavlov.
✵The article gives records of the herb (9).Epilobium tianschanicum Pavlov., 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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