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在黄淮地区,谷雨前后是种瓜种豆的大好时机。这里介绍一种既能食用,又能药用,更有观赏价值的豆科植物——刀豆。刀豆为一年生半直立蔓藤植物,高50～100厘米,三叶互生,卵形或椭圆形,总花序腋生,花萼唇形,花冠蝶形,淡紫红色。花期6～7月,果期8～10月。刀豆为荚果,长达30厘米左右,扁带形,略弯曲,像一把大刀。也叫关刀豆等。种子椭圆形,褐色,有光泽。花和果均为观赏部分。食用部分为嫩荚果和成熟的种子。鲜豆荚可做多种炒菜,如香芋炒刀豆、猪肉烩刀豆、刀豆炒腰片、刀豆炒肉丝
In Huanghuai region, Guyu before and after is a good time to grow melons beans. Here to introduce a both edible, but also medicinal, more ornamental value legumes - sword beans. Knotted beans for annual and semi-erect arabesque plants, high 50 to 100 cm, trefoil alternate, oval or oval, total inflorescence axillary, calyx lip, corolla butterfly, purple. Flowering from June to July, the fruit of 8 to October. Knife beans pods, up to 30 centimeters, flat ribbon, slightly curved, like a sword. Also known as off beans and so on. Seeds oval, brown, shiny. Flowers and fruits are ornamental part. The edible parts are tender pods and mature seeds. Fresh pods can do a variety of cooking, such as taro roasted beans, pork braised beans, knife beans fried waist slices, beans fried shredded pork