Description
provided by eFloras
Herbs, roots often fusiform, tuberous, 5-10(-30) × 0.3-0.5(-1) cm. monoecious. Stems often caespitose, slightly woody at base, 40-150 cm tall, upper stem sometimes purplish, often zigzagged, 5-angled, rarely branched; sterile axils with 1-3 woody bulbils, 3-5 mm in diam.; upper stems and petioles sparsely pubescent and sparsely armed with stinging hairs particularly at nodes and basally, glabrescent. Stipules early caducous, ovate-triangular, 3-4 mm, apex 2-cleft; petiole 3-14 cm; leaf blade ovate, elliptic or suborbicular, 7-22 × 3.5-17 cm, membranous or papery, 3-veined, rarely tripliveined, lateral basal pair reaching to middle margin, lateral veins 2-4 each side of midvein, both surfaces sparsely pubescent and sparsely armed with stinging hairs, sometimes glabrescent, base cordate, rounded, rarely subtruncate, margin grossly dentate, teeth increasing in size toward apex, sometimes doubly serrate, apex long caudate, cauda occasionally serrate; cystoliths minutely punctiform, adaxially conspicuous. Male inflorescences in proximal axils, paniculate, 8-17 cm; female inflorescences subterminal, long spicate, 15-25 cm, peduncle 2-8 cm, often with glomerules at intervals along usually unbranched peduncle, sparsely pubescent and armed with stinging hairs. Male flowers pedicellate or subsessile, in bud ca. 1.5 mm; perianth lobes 5, narrowly ovate, puberulent, apex not corniculate; stamens 5; rudimentary ovary obconic, 0.4 mm. Female flowers: pedicels ca.1.5 mm, not winged; perianth lobes 4, almost free, strongly unequal, dorsal lobe broadly ovate, concave, ca. 0.6 mm, 2 lateral lobes largest, enclosing the ovary, oblong-ovate, ca. 0.7 mm, setulose beneath, ventral lobe smallest, ovate, ca. 0.4 mm. Ovary short stipitate, enlarged in fruit, asymmetrically ovoid; stigma reflexed, filiform, ca. 2 mm. Achene obovoid, slightly compressed, ca. 2 mm, smooth; stipe 1-2 mm; persistent lateral perianth lobes slightly enlarged, ca. 1.5-1.8 mm. Fl. Jun-Jul, fr. Aug-Sep.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
provided by eFloras
Anhui, SE Gansu, N Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangxi, S Shaanxi, Sichuan, SE Xizang [Japan, Myanmar].
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- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
provided by eFloras
Forest margins, thickets, partly shady, moist places, roadsides; 800-2700 m.
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Girardinia cuspidata Weddell in Candolle, Prodr. 16(1): 103. 1869; Laportea forrestii Diels; L. giraldiana E. Pritzel ex Diels; L. grossedentata C. H. Wright; L. macrostachya (Maximowicz) Ohwi; Sceptrocnide macrostachya Maximowicz.
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Laportea cuspidata: Brief Summary
(
Vietnamese
)
provided by wikipedia VI
Laportea cuspidata là loài thực vật có hoa trong họ Tầm ma. Loài này được (Wedd.) Friis mô tả khoa học đầu tiên năm 1981.
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- cc-by-sa-3.0
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- Wikipedia tác giả và biên tập viên
艾麻
(
Chinese
)
provided by wikipedia 中文维基百科
二名法 Laportea cuspidata(Wedd.) Friis 艾麻(学名:Laportea cuspidata)是荨麻科艾麻属的植物。分布在缅甸、日本以及中国大陆的云南、湖南、陕西、江西、湖北、甘肃、河北、山西、安徽、西藏、河南、广西、贵州、四川等地,生长于海拔800米至2,700米的地区,多生于山坡林下及沟边,目前尚未由人工引种栽培。
别名
蝎子草(河北、陕西太白) 红火麻、红线麻、千年老鼠屎(秦岭) 活麻(四川) 山活麻(重庆南川) 麻杆七(四川叙永) 蛇麻草(湖北巴东、恩施) 山苎麻(湖南)
异名
- Girardinia condensata Wedd.
- Girardinia cuspidata Wedd.
- Laportea macrostachya (Maxim.) Ohwi
参考文献
- 昆明植物研究所. 艾麻. 《中国高等植物数据库全库》. 中国科学院微生物研究所. [2009-02-26]. (原始内容存档于2016-03-05).
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艾麻: Brief Summary
(
Chinese
)
provided by wikipedia 中文维基百科
艾麻(学名:Laportea cuspidata)是荨麻科艾麻属的植物。分布在缅甸、日本以及中国大陆的云南、湖南、陕西、江西、湖北、甘肃、河北、山西、安徽、西藏、河南、广西、贵州、四川等地,生长于海拔800米至2,700米的地区,多生于山坡林下及沟边,目前尚未由人工引种栽培。
ミヤマイラクサ
(
Japanese
)
provided by wikipedia 日本語
ミヤマイラクサ: Brief Summary
(
Japanese
)
provided by wikipedia 日本語
ミヤマイラクサ(深山刺草、学名:Laportea cuspidata )は、イラクサ科ムカゴイラクサ属の多年草。