1 "Receptacle in fruit 0.3--3 mm; petals < 3 mm" 2 1 "Receptacle in fruit 6--15 mm; petals 3.5--9 mm" 3 2 "Flowers 1 in leaf axils; receptacle reflexed in fruit" "Cleomella brevipes" 2 "Flowers in racemes, sometimes also 1 in leaf axils; receptacle spreading to ascending in fruit" "Cleomella parviflora" 3 "Plant hairy; older stems prostrate" "Cleomella obtusifolia" 3 "Plant glabrous; older stems ascending to erect" 4 4 "Branches 0 or generally from lower nodes; leaf elliptic to ovate" "Cleomella hillmanii var. hillmanii" 4 "Branches generally from upper nodes; leaf linear-elliptic" "Cleomella plocasperma"