Heads of mauve pea flowers from dark calyces May-Jul, clumping perennial, 1m. Seed collected Cemetery, Marinka, Bulgaria. Pitch trefoil. Syn.Psoralea bituminosa.

Genus: BITUMINARIA
Variety: BITUMINOSA
Cultivar: W&B BG A-9
Plant family: Papilioniaceae
Hardiness zone: H7 (below -20C)
Height: 

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Plant ID 13685