咬人狗Dendrocnide meyeniana

中文名(Chinese Name):咬人狗
学名(Scientific Name):Dendrocnide meyeniana (Walp.) Chew
英文名(English Common Name):
别名(Chinese Common Name):咬人狗艾麻
异名(Synonym):Dendrocnide meyeniana f. subglabra (Hayata) Chew  Laportea gaudichaudiana Wedd.  Laportea pterostigma var. subglabra (Hayata) T. S. Liu et W. D. Huang  Laportea pterostigma Wedd.  Laportea subglabra Hayata  Laportea meyeniana (Walp.) Warb.  Laportea pterostigma f. subglabra (Hayata) H. L. Li  Laportea batanensis C. B. Rob.  Laportea mindanaensis Warb.  Urtica meyeniana Walp.  Dendrocnide batanensis (C.B.Rob.) Chew  Dendrocnide diffusa (C.B.Rob.) Chew  Dendrocnide platyphylla (Merr.) Chew  Dendrocnide subglabra (Hayata) Chew  Laportea diffusa C.B. Rob.  Laportea platyphylla Merr.
科属(Family & Genus):荨麻科Urticaceae火麻树属Dendrocnide
形态特征(Description):常绿乔木,高5-7米,树冠平截形,树皮灰色,光滑,叶痕大,隆起;小枝、叶柄、 叶两面和花序被短柔毛和刺毛。叶集生于枝的顶端,卵形至椭圆形,长15-40厘米,宽 8-25厘米,先端渐尖,基部圆形、截形或浅心形,边缘全缘或波状,具羽状脉,侧脉7- 12对;叶柄长4-12厘米;托叶长约1厘米,背面密被柔毛和刺毛,早落。花序雌雄异 株,长圆锥状,长达25厘米,分枝短。雄花花被片与雄蕊4 (-5);雌花无梗,花被片 4,下部合生成杯状,侧生的2枚较背腹生的2枚宽,长约0.7毫米,外面被微毛和刺毛。 瘦果近圆形,稍扁,长约2毫米,两面有不明显的细疣点。花期4-7月。
分布(Distribution):产台湾。生于山坡低海拔林中或灌丛中。菲律宾也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 5 Page 89      
Dendrocnide meyeniana (Walpers) Chew, Gard. Bull. Singapore. 21: 206. 1965.
咬人狗 yao ren gou | Urticaceae  | Dendrocnide
Urtica meyeniana Walpers, Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19, Suppl. 1: 422. 1843; Dendrocnide meyeniana (Walpers) Chew f. subglabra (Hayata) Chew; Laportea batanensis C. B. Robinson; L. gaudichaudiana Weddell; L. meyeniana (Walpers) Warburg; L. mindanaensis Warburg; L. pterostigma Weddell; L. pterostigma var. subglabra (Hayata) T. S. Liu & W. D. Huang; L. subglabra Hayata.
Trees, crown truncate; 3 m tall, bark gray, armed with stinging hairs, bulbous at base, lenticellate, leaf scars conspicuous, prominent, otherwise smooth; second year branchlets, abaxial surface of stipules, petioles, leaf blade, and inflorescences armed with stinging hairs. Leaves crowded at apex of stem and branches; Stipules caducous, broadly triangular, ca. 1 cm, leathery, densely puberulent abaxially; petiole 4-12 cm, pubescent; leaf blade ovate to ovate or obovate-oblong, to 55 × 27 cm, leathery, penniveined, lateral veins 7-12 each side, abaxial surface pubescent or sometimes subglabrous, base obtuse, rounded, slightly cordate to subpeltate, margin entire, rarely dentate or crenate, apex acute, cuspidate, or acuminate; cystoliths minutely punctiform, conspicuous adaxially. Male inflorescences cymose paniculate, branches and flowers densely armed with stinging hairs; female inflorescences paniculate, more than 10 cm, ultimate branching angle more than 100 degrees, branchlets reddish green, densely armed with poisonous, stinging hairs, bracts linear, larger ones with midvein. Male flowers: perianth lobes 4(or 5). Female flowers flabellately arranged but often not in 1 plane; sessile, perianth lobes 4, connate at base, unequal, 2 lateral lobes much wider than medial 2, enclosing ovary, ovate, ca. 0.7 mm, sparsely puberulent and armed with short stinging hairs; stigma ligulate. Achene subglobose, oblique, compressed, ca. 2 mm in diam., inconspicuously verrucose; persistent perianth forming a minute cupule at base. Fr. Apr-Jul.
Secondary forests, thickets, along streams; 100-500 m. Taiwan [Philippines].
咬人狗Dendrocnide meyeniana

咬人狗Dendrocnide meyeniana 
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