Introduction Downward growing part of the vascular plant is called root. Root can also be aerial or aerating, that is, growing up above the ground or especially above water. Therefore, the root is best defined as the non-leaf, non-nodes bearing parts of the plant’s body. On the germination of seed the first root arises from the … Read more
1. Diagnostic features Herbaceous, exstipulate, alternate leaves. Inflorescence- typical racemose type. Flowers- ebracteate and bisexual, Calyx-4, freely arranged in two whorls, Corolla-4, cruciform, Stamens-6, tetradynamous. Gynoecium: bi-carpellary, syncarpous with parietal placentation. Fruit- siliqua or silicula. 2. Distribution Worldwide in distribution. But they abundantly grow in temperate and cold parts of the northern hemisphere. Many species … Read more