Introduction of Epilobium Herb in Chamaenerion Sect:(4).Epilobium speciosum Decne.

Popular Herbs. ✵The article gives records of the herb (4).Epilobium speciosum Decne., 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:(4).Epilobium speciosum Decne.

 Epilobium angustifolium:flowering plant 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.

 There are about 15 species of plants in the Sect. Chamaenerion Tausch, these species are widely distributed in the temperate and frigid regions of the Northern Hemisphere; there are about 4 species and 1 subspecies in China, widely distributed in the north of the Yangtze River Basin and the Himalayas. The species introduced are:(1).Epilobium angustifolium L., (2).Epilobium conspersum Hausskn., (3).Epilobium latifolium L., (4).Epilobium speciosum Decne.

(4).Epilobium speciosum Decne.


 flowering plants of Epilobium speciosum Decne with small pink flowers and thin green leaves grow in sunny field Botanical description: Epilobium speciosum Decne is classified in Sect. Chamaenerion Tausch, the Epilobium genus, of the Onagraceae family, its full Latin name is Chamerion speciosum (Decaisne) Holub, is commonly known as Himalayan willow herb. Its synonyms are Epilobium speciosum, Epilobium latifolium subsp. speciosum.

 Epilobium speciosum Decne is a perennial upright herb, clumps; rhizomes are stout, up to 1.5 cm in diameter, somewhat lignified, and overwintering succulent root suckers grow from the root neck. Unbranched or branched at the upper part, densely pubescent around. Leaves are spiral alternate.

 Racemes are upright, densely pubescent; bracts are leaflike; buds are oblong obovoid; the ovary is purple; pedicels are 0.8~2.8 cm long; petals are purple or red, orbicular (subrotund) or round-oblong.

 Seeds are narrowly obovate, tapering at the top, with short rostrums (beaks), with irregular and inconspicuous reticulations on the surface. The flowering period is from August to September; the fruiting period is from September to October.

 The difference between Epilobium speciosum Decne and Epilobium latifolium: the plant height is 25~45 cm; the secondary veins are not obvious; the sepals are 1.5~2 cm long; the petals are 1.7~2.5 cm long; the carpopodium (fruit stalk) is 1~3 cm long.

 Ecological environment: Epilobium speciosum Decne grows in sandy under the foot of the flowing rock slope or the wet place of stony gravel, at an altitude of 3,900~4,500 meters above sea level. The plant grows in the eastern and west areas of Tibet, the plant also grows in Nepal to Kashmir, and it is endemic to the Himalayas.
 
 

 
  

 

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References:
  • 1.Introduction of Epilobium Herb in Chamaenerion Sect:(4).Epilobium speciosum Decne.

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