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Ilex latifolia
Tree in Osaka-fu, Japan
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Aquifoliales
Family: Aquifoliaceae
Genus: Ilex
Species:
I. latifolia
Binomial name
Ilex latifolia

Ilex latifolia (tarajo holly or tarajo; Japanese: 多羅葉 (たらよう, tarayō), Chinese: 大叶冬青 dà yè dōngqīng) is a species of holly, native to southern Japan ( Shizuoka Prefecture south to Kyūshū) and eastern and southern China ( Jiangsu south to Fujian and west to Yunnan), growing in broadleaf forests at altitudes of 200–1,500 m. [1] [2] [3] [4]

Foliage, showing pale underside of leaves, one leaf showing the dark upper side

It is a small to medium-sized evergreen tree growing to 10–20 m tall with a trunk up to 60 cm diameter. The bark is dark brown, with a rough surface. The leaves are alternate, broad lanceolate to ovate-oblong, 8–24 cm long and 4–8 cm broad (among the largest of any species of holly), glossy dark green above, paler below, with a thick, leathery texture and serrated (but not spiny) margins. The flowers are yellowish-green, with a four-lobed corolla, produced in late spring; it is dioecious, with male and female flowers on separate trees. The fruit is a drupe 7 mm diameter, ripening orange-red to dark red in winter, and containing four seeds; they are often produced in dense clusters on the stems. [2] [3] [5] [6] [7]

Cultivation and uses

It is cultivated as an ornamental tree in parks and temple gardens. [3] The leaves may be infused to make tea ("bitter nail tea" kǔ dīng chá). [8]

References

  1. ^ "Ilex latifolia". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 21 January 2018.
  2. ^ a b Yuanlin Flora: Ilex latifolia (in Chinese); google translation
  3. ^ a b c Japan Plants: Ilex latifolia (in Japanese); google translation
  4. ^ Plants for a Future: Ilex latifolia
  5. ^ Japanese Treeflowers: Ilex latifolia
  6. ^ Botanic Japan: Ilex latifolia (in Japanese); google translation
  7. ^ Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN  0-333-47494-5.
  8. ^ Hu, Ting; He, Xiao-Wei; Jiang, Jian-Guo; Xu, Xi-Lin (2014). "Efficacy evaluation of a Chinese bitter tea (Ilex latifolia Thunb.) via analyses of its main components". Food & Function. 5 (5): 876–881. doi: 10.1039/c3fo60603a. ISSN  2042-6496. PMID  24638847.