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甜叶菊别名甜菊、糖草、甜草,为菊科草本植物,株高0.8-1.3米;根梢肥大,50一60条,长可达25厘米;茎直立,基部梢木质化,上部柔嫩,密生短茸毛;叶对生或茎上部互生,边缘有浅锯齿,两面着生短茸毛,叶脉为三出叶脉;花为头状花序,总苞筒状,总苞片5-6层,边等长,花托平坦,花冠基部浅紫红色或白色,上部白色;种子属瘦果,稍扁,褐色,具冠毛,种子没有休眠期。甜叶菊全株都有甜味,以叶片最甜。它有提高血糖、降低血压、促进新陈代谢的作用。
Stevia alias Stevia, sugar grass, sweet grass, as Compositae herbs, plant height 0.8-1.3 m; root tip hypertrophy, 50 to 60, up to 25 cm long; stems erect, the base of the Ministry of lignification, the upper soft, Densely hairy velvet hair; leaves opposite or upper stem alternate, shallow serrations edge, both sides of the raw hair velvet, veins three veins; flowers for the head inflorescence, involucral bracts, 5-6 layers of bracts, etc. Long, flat flowers, corolla base pink purple or white, upper white; seeds achenes, a little flat, brown, with a crown hair, the seeds do not have a dormant period. Stevia whole plant has a sweet, leaves the sweetest. It has to improve blood sugar, lower blood pressure and promote metabolism.