Pitch Trefoil – Psoralea bitumosa
Short to tall
Flowering:March to July
Flowers violet-blue or lilac, 15-20mm long in long-stalked heads. Not the most glamorous of plants, but fascinating in that the leaves smell of bitumen (tar), particularly if crushed.
Habitat: Dry, arid and rocky places, roadsides, fallow and cultivated ground.
Star Clover – Trifolium stellatum
Low to short
Flowering: March – July
Flowers pink, occasionally purple or yellowish, 8-12mm borne in solitary heads.Leaflets oval, notched,slightly toothed at apex.
Habitat: Cultivated & waste places, fields, stony & rocky ground, roadsides
Crown Vetch, Italian Sanfoin– Hedysarum coronarium
Robust, short to tall, (20cm),spreading
Flowering: March – June
Flowers bright reddish- purple, 12-15mm long, borne in dense, long-stalked heads. Leaves divided into 3-5 pairs grey-green leaflets.
Habitat: Open countryside and road edges; often covering the ground in great masses. Commonly cultivated for fodder.
A beautiful flower, I see it here on Gozo quite regularly.