Common name: Mustard family
This family includes 350 genera and 3200 species. The members are cosmopolitan in distribution however they are dominant in temperate and other colder parts of the world. Most of the members are used as vegetables and seeds of some plants are used for oil production.
Annual (Brassica), biennial(Raphanus), perennial(Cheiranthes), herbs, sometimes under shrubs(Farsetia), mostly terrestrial, sometimes aquatic(Nasturtium officiate). The plants possess pungent sap having sulphur containing glucosides.
Branched tap root system, sometimes root may become modified into different forms due to the storage of food materials such as; fusiform (Raphanus Sativus), napiform (Brassica rapa).
Aerial, erect, with distinct nodes and internodes, branched, sometimes unbranched, herbaceous, rarely woody, cylindrical, solid, glabrous, sometimes pubescent, sometimes stem gets reduced into flattened disc (Raphanus sativus) or sometimes the stem becomes modified into the corm-like structure (Brassica olearacea var Caulorapa).
Cauline and ramal, sometimes radical(Raphanus sativus), exstipulate, alternate, sometimes opposite, the lower leaf is petiolate, the upper leaf is sessile, simple, sometimes pinnately compound (Nasturtium officinate), lower leaves lyrate, upper leaves hastate or lanceolate, pubescent, sometimes glabrous, unicostate reticulate venation.
Racemose, typical raceme, sometimes corymb (Iberis Amara)
Ebracteate, bracteate in Nasturtium montanum, pedicellate, complete, bisexual, actinomorphic, zygomorphic in Iberis Amara, tetramerous, hypogynous.
Sepals 2+2, 4 sepals arranged in two whorls, polysepalous, imbricate aestivation, petaloid or green, inferior.
Petals 4, polypetalous, cruciform, four petals arranged in cross-like manner and each petal differentiated into limb and claw, valvate aestivation, equal sized but unequal sized in (Iberis Amara), sometimes petals are modified into or reduced into scales (Coronopus) or sometimes petals are completely absent (Lepidium), inferior.
Stamens 2+ 4, polyandrous, tetradynamous (presence of six stamens arranged in two whorls outer two with short filaments and inner four with long filaments. Sometimes either four stamens (Nasturtiumofficinate) or 2 stamens (Coronopus Didymus) up to 16 stamens (Megacarpeapolyandra) may be present. Anther dithecous, basifixed, outer two introrse, inner four extrorse or sometimes introrse only, inferior, nectary glands may be present in some species, dehiscence by longitudinal slits.
Carpels(2), bi carpellary, syncarpous, ovary superior, unilocular but becomes bilocular due to the presence of false septum called replum, one or many ovules in parietal placentation, style simple, short. Stigma simple or capitate or bifid.
Siliqua or silicula or lomentum(Raphanus).
Ebr. K2+2 C4 A2+4 G(2)