scorpion senna in full blooming

april blooming blossom botanical botany branch branches calyx coronilla daylight drained emerus entomophilous europe evergreen fabaceae flora floral flowering flowers glossy green growth hermaphrodite hippocrepis imparipinnate italy leaf leaflets leaves leguminosae lignified obovate outdoor pale perennial petals places plant rocky scorpion senna shrub soil springtime stem sunlight sunny terni thin umbria woodland woodlands yellow