《中国植物志》|| 荨麻科 URTICACEAE ||紫麻亚族 Subtrib. Villebruneinae Wedd. ||水麻属 Debregeasia Gaudich.

21.水麻属Debregeasia Gaudich.
Gaudich. Bot. Voy. Bonite t. 90. 1847-48; Wedd. Monogr. Urtic. 459. 1857; et in DC. Prodr. 16 (1): 235. 1869; Wilmot-Dear in Kew Bull. 43: 673-692. 1988.; C, J. Chen in Novon 1: 56-57. 1991.
灌木或小乔木，无刺毛。叶互生，具柄，边缘具细牙齿或细锯齿，基出3脉，下面 被白色或灰白色毡毛，钟乳体点状；托叶干膜质，柄内合生，顶端2裂，不久脱落。花 单性，雌雄同株或异株，雄的团伞花簇常由10余朵花组成，雌的球形，多数花组成，着 生于每分枝的顶端，花序二歧聚伞状分枝或二歧分枝，稀单生，成对生于叶腋。雄花：花 被片3-4（-5），镊合状排列；雄蕊3-4（-5）；退化雌蕊常倒卵形，在基部围以白绵 毛。雌花：花被合生成管状，顶端紧缩，有3-4齿，包被着子房，果时膜质与果实离生， 或增厚变肉质，贴生于果实；柱头画笔头状，具帚刷状的长毛柱头组织，宿存。瘦果浆 果状，常梨形或壶形，在下部常紧缩成柄，内果皮多少骨质化，外果皮肉质；宿存花被 增厚变肉质，贴生于果实而在柄处则离生，或膜质，与果实离生；种子倒卵形，多少压 扁，胚乳常丰富，子叶圆形。染色体基数x=14。
本属约6种，主要分布于亚洲东部的亚热带和热带地区，1种分布至非洲北部。我国 6种均产，分布于长江流域以南省区。
本属植物的韧皮纤维是良好的代麻用原料，果实可食、酿酒，叶可作饲料。

《云南植物志》|| 荨麻科 Urticaceae, nom. fam. conserv. ||荨麻科 Urticaceae, nom. fam. conserv. ||水麻属 Debregeasia Gaud.

18.水麻属 Debregeasia Gaud.
灌木或小乔木，无刺毛。叶互生，边缘有齿，上面密布点状钟乳体，具基出3脉；托叶干膜质，叶柄内合生，2裂，脱落。花单性，雌雄异株或同株；花序二岐聚伞状或二叉分枝，分枝顶端有1球状团伞花序，稀簇生叶腋。雄花：花被片（3—）4（—5），卵形，先端短渐尖，背面隆起，镊合状排列，合生至中部；雄蕊与花被片同数；退化雌蕊倒卵圆形，顶端具小尖突，基部常有绵毛。雌花：花被筒状，包被着子房，顶端有（3—）4齿，在果时常变为肉质；子房倒卵状长圆形，柱头画笔头状或短钻形；退化雌蕊无。瘦果浆果状，外果皮肉质，内果皮多少骨质，宿存花被肉质而与果几乎合生或离生，或为膜质而与果离生。种子常有胚乳，子叶短而宽。
约（4—）5—6种，主要分布在亚洲东部热带和亚热带地区，其中1种分布至北非。我国约有5种，分布西北至南方各省区。云南有5种，产南北各地。

《Flora of China》|| Urticaceae || ||水麻属 Debregeasia

21. Debregeasia Gaudichaud-Beaupré, Voy. Bonite, Bot., Atlas. 90. 1844.

水麻属 shui ma shu

Chen Jiarui (陈家瑞 Chen Chia-jui); Ib Friis, C. Melanie Wilmot-Dear

Leucocnides Miquel; Missiessya Weddell; Morocarpus Siebold & Zuccarini (1846), not Boehmer (1760).

Shrubs or small trees, without stinging hairs. Leaves alternate, petiolate; stipules deciduous, intrapetiolar, connate, membranous, 2-cleft; leaf blade thinly papery or papery, 3-veined, often snow white or silvery tomentose abaxially, margin serrulate; cystoliths punctiform. Inflorescences axillary, densely capitate clusters of unisexual flowers (plants monoecious or dioecious); glomerules solitary or pairs of dichotomously branched cymes. Male flowers: perianth lobes (3 or)4(or 5), slightly connate, valvate, often depressed-globose in bud, stamens (3 or)4(or 5); filaments inflexed in bud; rudimentary ovary obovoid, woolly at base. Female flowers: perianth tube obovoid or jug-shaped, mouth contracted, very minutely 3- or 4-toothed, in fruit often enlarged, fleshy, and adnate to ovary, rarely membranous and free; staminodes absent; style short; stigma penicillate, with tuft of long hairs; ovule orthotropous. Achenes somewhat drupaceous, obovoid, slightly compressed, closely enclosed by often fleshy, adnate perianth. Seeds with endosperm; cotyledons small, broad.

About six species: mainly in tropics and subtropics of E Asia, one species in N Africa and one in E Australia; all six species in China.

The stem fibers are used to make ropes and fishing nets, and the fruits are edible and used to make wine.