Introduction of Epilobium Herb in Chamaenerion Sect:(1).Epilobium angustifolium L.
✵The article gives records of the herb (1).Epilobium angustifolium L., its English name, Latin name, common names, property and flavor, with a detailed introduction to the botanical features of the plant species, the growth characteristics, and ecological environment of this plant species.
Chamaenerion Sect:(1).Epilobium angustifolium L.
Introduction: Chamaenerion Sect: Chamaenerion Tausch is a section in the Epilobium genus of the Onagraceae family (evening primrose family), perennial herbs or subshrubs, upright, often clumps. Stems are terete. Leaves are spiral alternate, sparsely subopposite, or whorled. The flower is slightly bilaterally symmetrical, the lower pair of petals is slightly narrower than the upper one, and is perpendicular to the stem axis when blooming; the flower tube is absent; the petals are entire; Stamens are nearly equal in length, arranged in a whorl, pollen grains are blue to yellow, single pollen pollinates; style reflexes when flowering; stigma is deeply 4-lobed, somewhat higher than stamens, lobes open and unfold 2-3 days after flowering, and roll back when style becomes upright and withered.
Botanical description: The Epilobium Angustifolium. is a plant of the Epilobium L. genus, Chamerion group, Onagraceae family, it is also known as Chamerion angustifolium, large leaf willow herb, fireweed, rosebay willowherb, etc.
The Epilobium Angustifolium is a stout herbaceous plant, upright and clustered, the rhizome is widely creeping on the topsoil, it grows up to 2 meters long, lignified, strong overwintering roots grow from the base of the stem. Stems are up to 130 cm tall, branches are cylindrical, glabrous, lower part somewhat is lignified, leaves are alternate spirally, sparsely opposite to the base, sessile, leaves are lanceolate, oblong to obovate, linear-lanceolate or narrowly lanceolate, glabrous on both sides, the margin is nearly entire or sparsely dentate, slightly retrorse, lateral veins are often inconspicuous, racemes, upright and glabrous;
The lower bracts are leaflike, the upper ones are very small, triangular-lanceolate, the buds are inverted egg-shaped, the ovary is pink or purplish red, the hypanthiums (calyx tubes) are missing, the sepals are purplish red, oblong-lanceolate, and the anthers are oblong, red at the initial stage, which turns purplish-red when cracking, resulting in bluish pollen. Pollen grains are often 3 holes, the flowers fold strongly when they bloom, and then stand upright, with white stigma and oblong-lanceolate lobes. Seeds are narrowly obovate, brown, with a nearly smooth surface but irregular fine reticulate pattern; offwhite, not easy to fall off. Its flowering period is from June to September and bears fruit from August to October.
Ecological environment: Epilobium angustifolium grows widely in the north temperate zone and frigid zone, Europe, Asia Minor, East Himalaya, Caucasus, Siberia, East Mongolia, Korean Peninsula, and North America. In China, it grows in the northwest, north, northeast, southwest, and other regions.
Growth characteristics: Epilobium angustifolium is naturally found on the forest edge, forest, hillside grass, alpine meadows, river beaches and gravel slopes, riparian grass, burned areas, or cut-off land at high altitudes. The plant is cold-resistant, likes a cool and humid climate, and moist, fertile, and well-drained soil, the plant is slightly shade-tolerant. Afraid of a hot and dry environment.
Ornamental Uses: Fireweed flowers grow up and have beautiful colors, so it is an ideal summer flower plant. Its underground roots have strong growth ability, easy to form large groups, and are spectacular when they bloom. It grows into a tall plant, which is very suitable for the background material of the flower border. Fireweed flower can be used in flower arrangements, and it is also beautiful.
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1.Introduction of Epilobium Herb in Chamaenerion Sect:(1).Epilobium angustifolium L.
✵The article gives records of the herb (1).Epilobium angustifolium L., its English name, Latin name, common names, property and flavor, with a detailed introduction to the botanical features of the plant species, the growth characteristics, and ecological environment of this plant species.
Introduction: Chamaenerion Sect: Chamaenerion Tausch is a section in the Epilobium genus of the Onagraceae family (evening primrose family), perennial herbs or subshrubs, upright, often clumps. Stems are terete. Leaves are spiral alternate, sparsely subopposite, or whorled. The flower is slightly bilaterally symmetrical, the lower pair of petals is slightly narrower than the upper one, and is perpendicular to the stem axis when blooming; the flower tube is absent; the petals are entire; Stamens are nearly equal in length, arranged in a whorl, pollen grains are blue to yellow, single pollen pollinates; style reflexes when flowering; stigma is deeply 4-lobed, somewhat higher than stamens, lobes open and unfold 2-3 days after flowering, and roll back when style becomes upright and withered.
The lower bracts are leaflike, the upper ones are very small, triangular-lanceolate, the buds are inverted egg-shaped, the ovary is pink or purplish red, the hypanthiums (calyx tubes) are missing, the sepals are purplish red, oblong-lanceolate, and the anthers are oblong, red at the initial stage, which turns purplish-red when cracking, resulting in bluish pollen. Pollen grains are often 3 holes, the flowers fold strongly when they bloom, and then stand upright, with white stigma and oblong-lanceolate lobes. Seeds are narrowly obovate, brown, with a nearly smooth surface but irregular fine reticulate pattern; offwhite, not easy to fall off. Its flowering period is from June to September and bears fruit from August to October.
Ecological environment: Epilobium angustifolium grows widely in the north temperate zone and frigid zone, Europe, Asia Minor, East Himalaya, Caucasus, Siberia, East Mongolia, Korean Peninsula, and North America. In China, it grows in the northwest, north, northeast, southwest, and other regions.
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