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牧场膨果豆

来自 植物智 的图片

中文名:牧场膨果豆 拉丁学名:Phyllolobium pastorium (H. T. Tsai & T. T. Yu) M. L. Zhang & Podlech 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:蔷薇亚纲 目:豆目 科:豆科 亚 科:蝶形花亚科 族:菜豆族 属:膨果豆属 种:牧场膨果豆

牧场膨果豆(muchangpengguodou)，学名：Phyllolobium pastorium (H. T. Tsai & T. T. Yu) M. L. Zhang & Podlech，俗名：牧场黄耆、线苞黄耆、牧场蔓黄芪，异名：Astragalus pastorius Astragalus pastorius var. linearibracteatus Astragalus tenchingensis  ， 本变种与原变种的区别在于苞片线形或披针状线形，近膜质，下面被毛并具缘毛；小叶7-13片。 产四川西南部（康定、理塘、稻城、乡城、木里）、西藏东部（江达、昌都、察雅、左贡、波密、芒康、加查）。生于海拔2800-4200米的草地、林缘、林下和阴湿场所。模式标本采自四川木里。

形态特征

本变种与原变种的区别在于苞片线形或披针状线形，近膜质，下面被毛并具缘毛；小叶7-13片。

FOC >> Vol.10 (2010) >> Fabaceae >> Phyllolobium 14.Phyllolobium pastorium (H. T. Tsai & T. T. Yu) M. L. Zhang & Podlech Feddes Repert. 117: 57. 2006.

牧场膨果豆 mu chang peng guo dou Astragalus pastorius H. T. Tsai & T. T. Yu, Bull. Fan Mem. Inst. Biol. 9: 264. 1940; A. pastorius var. linearibrac-teatus K. T. Fu; A. tenchingensis S. S. Cheng ex K. T. Fu.

Plants 25-40 cm tall, with appressed hairs 0.1-0.5 mm. Stems prostrate to ascending or erect, glabrous or sparsely to loosely or especially in upper part to rather densely covered with subappressed to ascending white and black hairs.

Leaves 6-10 cm; stipules 4-7 × 3-5 mm, glabrous or with a few black hairs at margins; petiole 1-2 cm, glabrous or very sparsely fur-nished with short black hairs; leaflets in 2-5 pairs, 10-30 × 3.5-10 mm, abaxially sparsely to loosely covered with appressed white or black and white hairs 0.3-0.4 mm, adaxially glabrous or sparsely hairy.

Racemes rather densely 4-8-flowered; pedun-cle (3-)4.5-10 cm, glabrous or sparsely to rather densely black hairy; bracts 4-6 mm, black hairy. Bracteoles 1-2 mm. Calyx 5-7(-10) mm, densely to rather densely covered with appressed black hairs 0.1-0.3 mm; teeth 2-3(-5) mm.

Petals blue; stan-dard suborbicular, 12-13 × 9-10 mm; wings ca. 11 mm; keel ca. 11 mm. Legumes with a stipe ca. 4 mm, 15-25 mm, ca. 5 mm high and wide, with a straight beak 1-3 mm, 2-locular, sparsely to loosely furnished with appressed black hairs 0.05-0.15 mm.

● 3000-4000 m. Sichuan, Xizang, Yunnan.

分类文献

Astragalus pastorius 《中国植物志》 第42(1)卷 (1993) >> 097页 PDF >> 线苞黄耆 Astragalus pastorius var. linearibracteatus

SYN 注：学名已修订，接受名为Phyllolobium pastorium。 16b. 线苞黄耆（变种）（植物研究）图版24：9-18

var. linearibracteatus K. T. Fu in Bull. Bot. Res. 2 (1): 129. 1982.——Aprattii Simps. var. multiflorus K. T. Fu, op. cit. 126.——A. prattii Simps. var. pastorioides K. T. Fu, op. cit. 127. ——A. passortus auct. non Tsai et Yu: Ni et P. C. Li, 西藏植物志2: 815. 1985.

产地生境

产四川西南部（康定、理塘、稻城、乡城、木里）、西藏东部（江达、昌都、察雅、左贡、波密、芒康、加查）。生于海拔2800-4200米的草地、林缘、林下和阴湿场所。模式标本采自四川木里。