Draba

Kalheber, H. 2003: Zur Gliederung von Erophila verna s. l. mit Merkmalsprüfungen für die in Hessen vorkommenden Arten. – Bot. Naturschutz Hessen 16: 39-56Meikle, R.D. 1977: Flora of Cyprus 1
but modified and supplemented, in need for further testing
1Leaves narrowly linear or linear-oblanceolate, often deeply toothed; silicle with up to 15 seeds
1'Leaves broadly oblanceolate, oblong or obovate-elliptical, entire or occasionally with a few small teeth; silicle with more than 15 seeds
2Leaves on upper side (sometimes only at the margins) with long, simple hairs, without or only with few forked hairs
2'Leaves on upper side with forked hairs, without or only with few simple hairs
3Silicles with width-length relation > 0.48, ovate, obovate or orbicular
3'Silicles with width-length relation < 0.45, lanceolate or obtuse-lanceolate