中国棘豆属(豆科)一新记录种——平卧棘豆

详细信息

Oxytropis prostrata(Pall.) DC.,A New Record of Leguminosae from Inner Mongolia,China

1.
State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing100093, China
2.
College of Life Science, Inner Mongolia University, Hohhot 010021, China
3.
Institute of Botany, Chinese Academy of Sciences, Beijing 100093
4.
Hulunber Grassland Ecosystem Research Station, Beijing 100081, Chnia

摘要: 平卧棘豆Oxrytropis prostrata(Pall.)DC.主要分布于蒙古和俄罗斯,最近发现在中国的呼伦贝尔草原区也有分布,属于中国新记录种。该种主要特征为茎基部多分枝,托叶大部分与叶柄合生,密被白色柔毛,小叶先端钝圆或微凹,龙骨瓣先端喙长约2 mm,子房和荚果光滑无毛。
- 棘豆属 /
- 平卧棘豆 /
- 豆科 /
- 新记录 /
- 中国
Abstract: Oxytropis prostrata(Pall.)DC.,occurring in eastern Mongolia and eastern Siberia of Russia,was discovered recently in Hulunber of Inner Mongolia,China.It is characterized by the following traits: individuals prostrate,stipules adnate to a petiole or thickly covered with villi,apex of leaflet obtuse to emarginate,beak of keel ca.2 mm long,legumes and ovaries glabrous.
- Oxytropis /
- China