橙黃花黃耆檢視原始碼討論檢視歷史
橙黃花黃耆 |
中文學名:橙黃花黃耆 拉丁學名:Astragalus dependens Bunge var. aurantiacus (Hand.-Mazz.) Y. C. Ho 別 稱:橙黃花黃芪 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:原生花被亞綱 目:薔薇目 亞 目:薔薇亞目 科:豆科 亞 科:蝶形花亞科 族:山羊豆族 屬:黃耆屬 亞 屬:黃耆亞屬 種:橙黃花黃耆 分布區域:主要產自產甘肅 東南部、四川北部 亞 族:黃耆亞族 組:裂翼組 命名者及年代:Hand.1980. |
橙黃花黃耆(chéng huáng huā huáng qí,學名:Astragalus dependens Bunge var. aurantiacus (Hand.-Mazz.) Y. C. Ho),多年生草本。根粗壯,直伸,灰白色。莖基部多分枝,直立或上升,高20-40厘米,散生白色短柔毛。小葉卵形或倒卵形,長6-13毫米,寬3-5毫米。葉柄長0.5-1厘米。主要產自產甘肅東南部、四川北部。可入藥。 [1]
橙黃花黃耆形態特徵
托葉離生,狹三角形,長7-13毫米,下面散生短柔毛;小葉長圓形或線狀長圓形,長5-7毫米,寬2-4毫米,先端純圓或微凹,基部圓形,上面無毛,下面被促柔毛,具促的小葉柄。
總狀花序生多數花,稀疏,花序軸長3-8厘米;總花梗長7-13厘米,疏被白色短柔毛,苞片鑽形,長約1毫米;花萼鍾狀,長約3毫米,疏被黑色或混生白色短柔毛,萼齒狹三角形,長約為萼筒的1/3;
花冠淡紫色或紫紅色,旗瓣倒卵形,長6-7毫米,先端微凹,墓部漸狹成不明顯的瓣柄,翼瓣長5-6毫米,瓣片狹長圓形,先端不等2裂,基部具短耳,瓣柄細,長約1.5毫米,龍骨瓣長4-5毫米,瓣片半圓形,基部具短耳及長約1.5毫米的細瓣柄;
子房無毛,幾無柄。莢果橢圓形,長3-4毫米,先端具細彎長喙,淡栗褐色,有隆起的橫紋,假2室,有薄的假縱隔;
種子4-5顆,圓腎形,褐色,直徑約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.
橙黃花黃耆生長環境
生長於海拔1000-2000米的向陽山坡或砂石田中。