ຫວາຍນໍ້າ / Water Rattan
APA 6th ed. ຫວາຍນໍ້າ / Water Rattan. (2021, August 28). Retrieved from https://www.phakhaolao.la/index.php/kb/0000027
MLA 8th ed. ຫວາຍນໍ້າ / Water Rattan. Pha Khao Lao, 28 August 2021, https://www.phakhaolao.la/index.php/kb/0000027.
Chicago 17th ed. Pha Khao Lao. 2021. "ຫວາຍນໍ້າ / Water Rattan." Published August 28, 2021. https://www.phakhaolao.la/index.php/kb/0000027.
Calamus extensus Mart.
Calamus fasciculatus Roxb.
Calamus fasciculatus subvar. andamanicus Becc.
Calamus fasciculatus subvar. bengalensis Becc.
Calamus fasciculatus subvar. cochinchinensis Becc.
Calamus fasciculatus subvar. pinangianus Becc.
Calamus litoralis Blume
Calamus phuocbinhensis A.J.Hend. & N.Q.Dung
Calamus pseudorotang Mart.
Calamus siamensis Becc.
Calamus siamensis var. malaianus Furtado
Calamus viminalis var. fasciculatus (Roxb.) Becc.
Palmijuncus fasciculatus (Roxb.) Kuntze
Palmijuncus litoralis (Blume) Kuntze
Palmijuncus pseudorotang (Mart.) Kuntze
Palmijuncus viminalis (Willd.) Kuntze
Rotang viminalis (Willd.) Baill.
Thai: wai khom, wai dong
Vietnamese: meuy nep
Another clustering rattan, with a stem up to 20 m long and 0.9 cm-2 cm in diameter, wai nam has a 1.2 cm-3 cm diameter sheath that is greenish and sometimes has grey-brown indumentums. Its spines are brownish to yellowish-brown with reddish tips, 1 cm-2.5 cm long, often with crescent bases. There is a tiny, dry ocrea with no spines or bristles. Leaves are 0.8 m-1.2 m long, with leaflets that are regular on some leaves but irregular on others. The leafstalk is 7 cm-22 cm long, though sometimes shorter than 5 cm on sheaths with inflorescences. Inflorescences are 0.6 m-1.6 m long with a flagellum. The fruit is 0.8 cm x 0.8 cm, with whitish scales (yellow when dry) and non-ruminate seeds.
Wai nam grows in shrub forest and degraded semi-evergreen forest at 100 m, usually near rivers in Attapeu province. It is also found and is widely cultivated in Thailand, with fast growth. In Laos a single bitter-tasting shoot is sold for $0.05-$0.07, or $0.4 per kg ($8 dried).
Factories or middlemen buy canes for $0.3-$0.5 per kg. The rattan factory in Vientiane Province sells processed canes for $1.1 per kg (stems 2 cm in diameter and 5 m) and $5 per kg (1 cm-diameter stems).