天蓝苜蓿Medicago lupulina

中文名(Chinese Name):天蓝苜蓿
学名(Scientific Name):Medicago lupulina L.
英文名(English Common Name):black medick
别名(Chinese Common Name):
异名(Synonym):Medicago wildenowii Merat  Medicago cupaniana Guss.  Medicago appenina Woods  Medicago lupulina subsp. cupaniana (Guss.)Nyman  Medicago lupulina var. glandulosa W.D.J.Koch  Medicago lupulina subsp. eurasiatica Braun-Blanq.  Medica lupulina Scop.
科属(Family & Genus):蝶形花科,Fabaceae,苜蓿属
形态特征(Description):一、二年生或多年生草本,高15-60厘米,全株被柔毛或有腺毛。主根浅,须根发达。茎平卧或上升,多分枝,叶茂盛。羽状三出复叶;托叶卵状披针形,长可达1厘米,先端渐尖,基部圆或戟状,常齿裂;下部叶柄较长,长1-2厘米,上部叶柄比小叶短;小叶倒卵形、阔倒卵形或倒心形,长5-20毫米,宽4-16毫米,纸质,先端多少截平或微凹,具细尖,基部楔形,边缘在上半部具不明显尖齿,两面均被毛,侧脉近10对,平行达叶边,几不分叉,上下均平坦;顶生小叶较大,小叶柄长2-6毫米,侧生小叶柄甚短。花序小头状,具花10-20朵;总花梗细,挺直,比叶长,密被贴伏柔毛;苞片刺毛状,甚小;花长2-2.2毫米;花梗短,长不到1毫米;萼钟形,长约2毫米,密被毛,萼齿线状披针形,稍不等长,比萼筒略长或等长;花冠黄色,旗瓣近圆形,顶端微凹,冀瓣和龙骨瓣近等长,均比旗瓣短:子房阔卵形,被毛,花柱弯曲,胚珠1粒。荚果肾形,长3毫米,宽2毫米,表面具同心弧形脉纹,被稀疏毛,熟时变黑;有种子1粒。种子卵形,褐色,平滑。花期7-9月,果期8-10月
分布(Distribution):产我国南北各地,以及青藏高原,常见于河岸、路边、田野及林缘。欧亚大陆广布。
用途(Use):
引自植物志英文版:FOC Vol. 10 Page 554
Medicago lupulina Linnaeus, Sp. Pl. 2: 779. 1753.
天蓝苜蓿 tian lan mu xu| Fabaceae  | Medicago
Annual or short-lived perennial herbs, 15-60 cm, glabres­cent to pubescent, sometimes glandular. Stems decumbent, prostrate or ascending, much branched. Stipules ovate-lanceo­late, to 10 mm, entire or toothed, base rounded or hastate, apex acuminate; petiole 1-2 cm; leaflets elliptic, ovate, or obovate, 5-20 × 4-6 mm, papery, pubescent, lateral veins to 10 pairs, base cuneate, margin distally obscurely serrate, apex truncate or retuse, apiculate. Flowers 10-20 in small heads; peduncles slen­der, straight, longer than subtending leaves, glabrate to densely appressed pubescent; bracts bristlelike, minute; pedicel less than 1 mm. Calyx ca. 2 mm, glabrate to densely hairy. Corolla yellow, 2-2.2 mm; standard suborbicular, apex retuse, longer than wings and keel. Ovary broadly ovate; ovule 1. Legume reniform, ca. 3 × 2 mm, sculptured with concentric arcuate veins, sparsely hairy, black when ripe. Seed 1, brown, ovoid, smooth. Fl. Apr-Sep, fr. Jun-Oct.
Stream banks, roadsides, waste fields, woodland margins. Throughout China [Asia, Europe].
天蓝苜蓿Medicago lupulina

天蓝苜蓿Medicago lupulina(责任编辑:徐晔春)

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