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Cayratia japonica

Cayratia japonica

Family

Vitaceae

Synonyms

Vitis japonica Thunb., Cissus japonica Willd., Cissus obovata Lawson

Vernacular Names

Malaysia Lakum, charek merah, pokok riang hutan.
English Sorrel vine.
Indonesia Dudugan (Siberut).
Vietnam V[as]c nh[aaj]t.

Geographical Distributions

From Japan and southern China to Indo-China, Malesia and Australia; common in Peninsular Malaysia. Recently occurring as an adventive in Texas (United States).

Description

It is a rather small, usually evergreen climber, 2-4 m long stem ridged, often reddish when young, hairy mainly at nodes, tendrils 2-3-fid, usually smooth, small or absent tuber and large root system .

The leaves are pedate, usually 5-foliolate with 4-8 cm long stalk, central leaflet is broadly lance-shaped to egg-shaped, 6-10 cm x 3-5.5 cm while lateral leaflets are egg-shaped, 3-7(-11) cm x 2-3.5 cm. The margins are serrate and both surfaces are hairy.

The inflorescence is arising at the axil, cymose corymbiform, primary branches 3, 6-12 cm x 3-4 cm and peduncle is 4-8 cm long. The flowers are small greenish-white to yellowish color.

The berry is subglobose, up to 1 cm in diametre, purplish-blue to black, sometimes white and 2-4-seeded.

Ecology / Cultivation

C. japonica occurs usually along rainforest margins, brushwood and village margins, from sea-level up to 1500 m altitude.

Line Drawing / Photograph

BOT00018

References

  1. Plant Resources of South-East Asia No 12(2). 1998, Unesco.

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