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中华山蓼Oxyria sinensis

时间:2013-10-30 14:11来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):中华山蓼 学名( Scientific Name ): Oxyria sinensis Hemsl. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Oxyria mairei H. Lv. 科属( Family Genus ): 蓼科(Polygonaceae)
中文名(Chinese Name):中华山蓼
学名(Scientific Name):Oxyria sinensis Hemsl.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Oxyria mairei H. Lév.
科属(Family & Genus):蓼科(Polygonaceae)山蓼属
形态特征(Description):多年生草本,高30-50厘米。根状茎粗壮,木质,直径0.7-2厘米。茎直立,通常数条,自根状茎发出,具深纵沟,密生短硬毛。无基生叶,茎生叶叶片圆心形或肾形,长3-4厘米,宽4-5厘米,近肉质,顶端圆钝,基部宽心形,边缘呈波状,上面无毛,下面沿叶脉疏生短硬毛,具5条基出脉;叶柄粗壮,长4-9厘米,密生短硬毛;托叶鞘膜质,筒状,松散,具数条纵脉。花序圆锥状,分枝密集,粗壮;苞片膜质,褐色,每苞内具5-8花;花梗细弱,长4-6毫米,中下部具关节;花单性,雌雄异株,花被片4, 果时内轮2片增大,狭倒卵形,紧贴果实,外轮2个,反折;雄蕊6, 花药长圆形,花丝下部较宽;子房卵形,双凸镜状,花柱2, 柱头画笔状。瘦果宽卵形,双凸镜状,两侧边缘具翅,连翅外形呈圆形,直径6-8毫米;翅薄膜质,淡红色,边缘具不规则的小齿。花期4-5月,果期5-6月。
分布(Distribution):产四川、云南和西藏,生海拔1600-3800米山坡、山谷路旁。
用途(Use):
引自中国植物志英文版:FOC Vol. 5 Page 333     
Oxyria sinensis Hemsley, J. Linn. Soc., Bot. 29: 317. 1892.
中华山蓼 zhong hua shan liao| Polygonaceae  | Oxyria
Oxyria mairei H. Léveillé.
Herbs perennial, somewhat shrubby, dioecious. Rhizomes stout, 0.7-2 cm in diam., ligneous. Stems erect, 30-50 cm tall, somewhat woody at base, branched, striate, densely hirtellous. Petiole 4-9 cm, densely hirtellous; leaf blade orbicular-cordate or reniform, 3-4 × 4-5 cm, subfleshy, abaxially sparsely hirtellous along veins, adaxially glabrous, base broadly cordate, margin undulate, apex obtuse; ocrea tubular, lax, membranous, apex truncate. Inflorescence paniculate, densely branched; bracts brown, membranous, each 5-8-flowered. Pedicel 4-6 mm, slender, articulate below middle. Flowers unisexual. Male flowers: filaments dilated at base. Female flowers: outer tepals deflexed; inner tepals accrescent in fruit, narrowly obovate, appressed. Achenes broadly ovoid, 6-8 mm in diam., margin broadly winged; wings pink, thinly membranous, irregularly denticulate. Fl. Apr-Oct, fr. May-Nov.
  • Steep, often dry, mountain slopes, valleys, grasslands; 1600-3800 m. Guizhou, Sichuan, Xizang, Yunnan.
 




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