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斑果黄耆 |
中文学名:斑果黄耆 拉丁学名:Astragalus beketovii (Krassn.) B. Fedtsch. 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:蔷薇目 科:豆科 亚 科:蝶形花亚科 族:山羊豆族·黄耆亚族 属:黄耆属 亚 属:黄耆亚属 组:囊果组 |
斑果黄耆(bān guǒ huáng qí,学名 Astragalus beketowii (Krasnov) B. Fedtschenko,异名:Oxytropis beketowii Astragalus polychromus ),多年生草本植物,茎常基部分枝,高10-25厘米,花期6月。产于新疆北部和西部地区。 [1]
斑果黄耆形态特征
多年生草本,茎常基部分枝,高10-25厘米,被白色柔毛。
羽状复叶有11-15片小叶,长2-5厘米;叶柄较叶轴短,稀与叶轴等长,被白色柔毛;托叶膜质,基部互相合生,下部的广卵形,上部的披针形,长3-5毫米,下面被白色柔毛或混生黑色毛或仅具缘毛;
小叶卵形或披针状长圆形,长5-8 (10) 毫米,宽1-(5) 毫米,先端钝或尖,基部宽楔形,两面密被灰白色或半开展的伏贴柔毛,或上面近无毛,具短的小叶柄。
总状花序生5-15花,稍密集,花序轴长 斑果黄嗜(3张) 1.5-3厘米,花后延伸;总花梗明显较叶长,被白色柔毛,上部并混生黑色毛;苞片披针形,长3-4毫米,下面被黑色毛或混生白色短柔毛;
花梗长1-3毫米;花萼钟状,长6-8毫米,被黑毛或混生白色短柔毛,萼齿披针形,长为萼筒的1/3-1/2;
花冠淡紫色,龙骨瓣顶端暗紫色,旗瓣长圆状倒卵形,长14-16毫米,上部微凹,基部具短瓣柄,翼瓣长12-14毫米,瓣片长圆形,上部变宽,2深裂,基部具耳及长约4毫米的瓣柄,龙骨瓣长9-11毫米,瓣片宽斧形,瓣柄长约4毫米,子房线形,具柄,无毛。 [2]
花期6月。
Oxytropis beketowii Krasnov, Bot. Zap. 2: 15. 1887-1888; Astragalus polychromus Freyn.
Plants 5-17 cm tall, with very short appressed or as-cending hairs 0.05-0.2 mm. Stems several, 1-7(-10) cm, pros-trate, glabrous. Leaves 1.5-5 cm; stipules 4-5 mm, connate be-hind stem to more than 1/2 of length, ciliate with white or black and white hairs; petiole much shorter than to rarely nearly as long as rachis, like rachis nearly glabrous; leaflets in 4-7 pairs, ± glaucous, narrowly elliptic to ovate, 2-8 × 0.5-3 mm, abax-ially subglabrous or sparsely hairy on both surfaces, adax-ially glabrous, apex subacute or rarely obtuse. Racemes short, densely 5-16-flowered; peduncle 2-7 cm, subglabrous, toward raceme increasingly with white and black hairs; bracts 2-4 mm, subglabrous. Calyx 6-8 mm, loosely covered with appressed to spreading predominantly black hairs; teeth slightly unequal, 1.5-2 mm. Petals lilac to violet, with a dark spot at keel tip; standard obovate, 14-16 × ca. 8 mm, apex incised; wings 12-14 mm, deeply incised and bilobed; keel 9-11 mm. Legumes with a slender stipe ca. 3 mm, pendulous, bladderlike inflated, obliquely ovoid, 15-25 mm, 8-10 mm high, 1-locular; valves glabrous, red spotted.
Alpine slopes; 2500-4300 m. Xinjiang [Kyrgyzstan, Mongolia, Tajikistan].
斑果黄耆生长环境
生长于海拔2500-4300米的亚高山草甸。 [3]
斑果黄耆分布范围
分布于新疆(北部和西部)。
参考来源
- ↑ 斑果黄耆, 植物智, 2020-01-18
- ↑ FOC >> Vol.10 (2010) >> Fabaceae >> Astragalus
- ↑ 斑果黄耆Astragalus beketovii (Krassn.) B. Fedtsch. _植物通 种中文名:斑果黄耆种拉丁名:Astragalus beketovii (Krassn.) B. Fedtsch.科中文名:豆科科拉丁名:Leguminosae属中文名:黄耆属属拉丁名:Astragalus国内分布:产新疆...