橙黄花黄耆查看源代码讨论查看历史
橙黄花黄耆 |
中文学名:橙黄花黄耆 拉丁学名:Astragalus dependens Bunge var. aurantiacus (Hand.-Mazz.) Y. C. Ho 别 称:橙黄花黄芪 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原生花被亚纲 目:蔷薇目 亚 目:蔷薇亚目 科:豆科 亚 科:蝶形花亚科 族:山羊豆族 属:黄耆属 亚 属:黄耆亚属 种:橙黄花黄耆 分布区域:主要产自产甘肃 东南部、四川北部 亚 族:黄耆亚族 组:裂翼组 命名者及年代:Hand.1980. |
橙黄花黄耆(chéng huáng huā huáng qí,学名:Astragalus dependens Bunge var. aurantiacus (Hand.-Mazz.) Y. C. Ho),多年生草本。根粗壮,直伸,灰白色。茎基部多分枝,直立或上升,高20-40厘米,散生白色短柔毛。小叶卵形或倒卵形,长6-13毫米,宽3-5毫米。叶柄长0.5-1厘米。主要产自产甘肃东南部、四川北部。可入药。 [1]
橙黄花黄耆形态特征
托叶离生,狭三角形,长7-13毫米,下面散生短柔毛;小叶长圆形或线状长圆形,长5-7毫米,宽2-4毫米,先端纯圆或微凹,基部圆形,上面无毛,下面被促柔毛,具促的小叶柄。
总状花序生多数花,稀疏,花序轴长3-8厘米;总花梗长7-13厘米,疏被白色短柔毛,苞片钻形,长约1毫米;花萼钟状,长约3毫米,疏被黑色或混生白色短柔毛,萼齿狭三角形,长约为萼筒的1/3;
花冠淡紫色或紫红色,旗瓣倒卵形,长6-7毫米,先端微凹,墓部渐狭成不明显的瓣柄,翼瓣长5-6毫米,瓣片狭长圆形,先端不等2裂,基部具短耳,瓣柄细,长约1.5毫米,龙骨瓣长4-5毫米,瓣片半圆形,基部具短耳及长约1.5毫米的细瓣柄;
子房无毛,几无柄。荚果椭圆形,长3-4毫米,先端具细弯长喙,淡栗褐色,有隆起的横纹,假2室,有薄的假纵隔;
种子4-5颗,圆肾形,褐色,直径约1毫米。花果期5-7月。 [2]
var. aurantiacus (Hand. -Mazz.) Y. C. Ho in Bull. Bot. Lab. N. -E. For. Inst. 8(8): 71. 1980. ——A. aurantiacus Hand. -Mazz. Symb. Sin. 7: 557. 1933.
Astragalus dependens Bunge var. aurantiacus (Handel-Mazzetti) Y. C. Ho; A. dependens var. flavescens Y. C. Ho; A. dependens var. sericeus K. T. Fu.
Plants up to 65 cm tall, with subappressed to nearly spreading hairs 0.1-0.5 mm. Stems erect, glabrous or with scat-tered hairs. Leaves 1.5-4 cm, subsessile; stipules whitish mem-branous, 3-4 mm, subglabrous, free from each other; rachis slender, sparsely to loosely covered with subappressed to spreading white and a few black hairs; leaflets in 3-7 pairs, narrowly elliptic, 5-10 × 1.5-3 mm, abaxially rather densely and adaxially sparsely hairy, apex rounded to retuse or slightly emarginate. Racemes at anthesis densely many flowered, later strongly elongated up to 15 cm; peduncle 6-26 cm, sparsely to loosely covered with ascending white or black hairs; bracts 2-3 mm, long subulate-acuminate, mostly black hairy. Calyx 2-2.5 mm, loosely covered with appressed black and a few white hairs 0.1-0.15 mm; teeth 0.3-0.5 mm. Petals orange; standard obovate, 5-6 × 3-4 mm, apex widely emarginate; wings 5-5.5 mm, limbs slightly obliquely incised; keel 4.5-5 mm. Legumes sessile, widely ellipsoid, ca. 4 mm, ca. 3 mm high and ca. 2 mm wide, slightly keeled ventrally, deeply grooved dorsally, rounded at apex, with a persistent style ca. 2 mm, 2-locular, glabrous. Seed 1 in each locule.
● Gansu, Nei Mongol, Qinghai, Sichuan, Xinjiang.
橙黄花黄耆生长环境
生长于海拔1000-2000米的向阳山坡或砂石田中。