目前为止，中国西南野生生物种质资源库共保藏该物种: 种子92份; DNA材料120份; DNA3份;

• 科:豆科    Fabaceae
• 属:草木犀属    Melilotus
• 种:草木犀   Melilotus officinalis

2. Melilotus officinalis (Linnaeus) Lamarck, Fl. Fran?. 2: 594. 1779. 草木犀 cao mu xi Melilotus officinalisCredit: Harvard University Herbaria Trifolium officinale Linnaeus, Sp. Pl. 2: 765. 1753 [T. "M. officinalis"]; Brachylobus officinalis (Linnaeus) Dulac; Melilo­tus graveolens Bunge; M. officinalis f. suaveolens (Ledebour) H. Ohashi & Tateishi; M. suaveolens Ledebour.Biennial herbs, sparsely puberulent to glabrescent. Stems erect, 40-100(-250) cm, longitudinally ridged. Stipules linear-falcate, 3-5(-7) mm, entire or with 1 tooth at base; petiole slen­der; leaflets obovate, broadly ovate, oblanceolate, to linear, 15-25(-30) × 5-15 mm, lateral veins running into teeth, 8-12 pairs, margins shallowly serrate. Racemes 6-15(-20) mm, 30-70-flowered, dense at first, becoming lax in anthesis; bracts equal to pedicels, 1.5-2 mm. Corolla yellow, 4.5-7 mm; stan­dard ± equal to wings and keel. Ovary narrowly ovate; ovules (4-)6(-8). Legume ovoid, 3-5 × ca. 2 mm, veins transversely reticulate, dark brown, apex with persistent style. Seeds 1 or 2, yellowish brown, ovoid, ca. 2.5 mm, smooth. Fl. May-Sep, fr. Jun-Oct.Sandy grasslands, hillsides, ravine shores, margins of mixed woodlands. Throughout China [Asia, Europe].【引自：Flora of China】

二年生草本，高40-100 (-250) 厘米。茎直立，粗壮，多分枝，具纵棱，微被柔毛。羽状三出复叶；托叶镰状线形，长3-5 (-7) 毫米，中央有1条脉纹，全缘或基部有1尖齿；叶柄细长；小叶倒卵形、阔卵形、倒披针形至线形，长15-25 (-30) 毫米，宽5-15毫米，先端钝圆或截形，基部阔楔形，边缘具不整齐疏浅齿，上面无毛，粗糙，下面散生短柔毛，侧脉8-12对，平行直达齿尖，两面均不隆起，顶生小叶稍大，具较长的小叶柄，侧小叶的小叶柄短。总状花序长6-15 (-20) 厘米，腋生，具花30-70朵，初时稠密，花开后渐疏松，花序轴在花期中显著伸展；苞片刺毛状，长约1毫米；花长3.5-7毫米；花梗与苞片等长或稍长；萼钟形，长约2毫米，脉纹5条，甚清晰，萼齿三角状披针形，稍不等长，比萼筒短；花冠黄色，旗瓣倒卵形，与翼瓣近等长，龙骨瓣稍短或三者均近等长；雄蕊筒在花后常宿存包于果外；子房卵状披针形，胚珠 (4) 6 (-8) 粒，花柱长于子房。荚果卵形，长3-5毫米，宽约2毫米，先端具宿存花柱，表面具凹凸不平的横向细网纹，棕黑色；有种子1-2粒。种子卵形，长2.5毫米，黄褐色，平滑。花期5-9月，果期6-10月。 【引自：中国植物志】