Boehmeria japonica

Boehmeria japonica
variety japonica
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Rosales
Family:	Urticaceae
Genus:	Boehmeria
Species:	B. japonica
Binomial name
Boehmeria japonica (L.f.) Miq.
Synonyms
Synonymy Boehmeria grandifolia (Thunb.) Wedd. Boehmeria hatusimae Satake Boehmeria japonica var. appendiculata (Blume) Yahara Boehmeria japonica var. longispica (Steud.) Yahara Boehmeria longispica Steud. Boehmeria longispica var. appendiculata Blume Boehmeria macrophylla var. tomentosa (Wedd.) D.G.Long Boehmeria miqueliana Tanaka [Illegitimate] Boehmeria pachystachya Satake Boehmeria pilushanensis Y.C.Liu & F.Y.Lu Boehmeria pilushanensis Liu & Lu Boehmeria platyphylla var. japonica (L.f.) Wedd. Boehmeria platyphylla var. macrophylla (Thunb.) Wedd. Boehmeria scabrella (Roxb.) Gaudich. Boehmeria spicata var. duploserrata Wight Boehmeria taiwaniana Nakai & Satake Boehmeria taiwaniana var. pilushanensis (Liu & Lu) S.S.Ying Duretia longispica (Steud.) Nakai Ramium japonicum Kuntze Urtica japonica L. f.

Boehmeria japonica is a species of flowering plant in the nettle family (Urticaceae). It native to eastern Asia, where it is found in China, Japan, South Korea, and Taiwan.

Its natural habitat is extremely variable, being found in areas that range from wet to dry, and from shaded to open. It is tolerant of disturbance, and can be found growing on walls and roadsides. It is considered to be a common species in most of Japan.

Description

It is perennial subshrub or herb, growing to 5 m in height. Its leaves are dark green, ovate, and with upwardly-curving teeth. It produces small green flowers in the summer.

• 
  Variety japonica, showing thick leaves with many teeth
• 
  Variety silvestrii, showing three elongated teeth
• 
  Variety tenera, showing glabrous leaves and a single elongated terminal tooth

Taxonomy

Boehmeria japonica is a highly morphologically variable species across it range, due to the presence of both apomixis and polyploidy. Numerous segregates have named in attempts to taxonomically describe this variation. In the most recent treatment of the complex, three integrating varieties are recognized. They are:

• B. japonica var. japonica- with spreading pubescence, leaves larger and thicker-textured; found in warmer areas.
• B. japonica var. silvestrii -leaves glabrous or appressed-pubescent; leaves thin, wide, with three elongated teeth; uncommon.
• B. japonica var. tenera - leaves glabrous or appressed-pubescent; leaves thin, narrow, and with a single long terminal tooth; common.

Uses

It is used for making ropes and cloth, as agricultural fodder, and medicinally to relieve fever.