Erucastrum:  Answers to key questions leading to this genus

	plants more or less pubescent with simple hairs
	stem hairs not attached by the middle
	leaves deeply pinnatifid
	basal leaves not lyrate-pinnatifid
	petals yellow
	petals less than 7 mm long
	fruit pod-like (silique or silicle), dehiscent by two valves
	pods not compressed at right angles to the central partition
	pod more than 4 times as long as broad
	pods circular in cross section, not flattened (BF)
	pods 4-angled, not terete (FOA)
	pod valves sharply 1-nerved
	pod with a short slender beak or beakless (FOA)
	pods with a long, distinct beak (BF)
	beak joint of capsule containing a seed
	beak of pod and the body equal in cross section; not having beak flattened and body almost round
	pods opening by valves, not constricted between seeds
	seeds in a single row
	seeds in 1 row in each locule
	seeds globose, ovoid, or ellipsoid

Cruciferae: Answers to key questions leading to this family

	herbs
	plants terrestrial or semi-aquatic
	plants not with colored milky juice
	plants with more than one normal leaf
	leaves without stipules, or having glands
	some or all leaves alternate
	plants with two floral rings, and with each petal distinct from the other
	corolla regular
	4 petals
	calyx regular
	4 sepals
	stamens usually 6, four long and two short
	ovary superior
	1 or 2 carpels