flowers bobovnik anagyriformes or anagyrofolia or golden shower

bobovnik plant flowers ukraine forest trees nature yellow summer spring beautiful nectar large aroma allergy landscaping shrubs seedlings oxygen children ecology leaves branches tree honey bees acacia anagyriformes anagyrofolia golden shower woody species flowering genus laburnum family legumes anagyris garden ornamental central europe reproduction seeds poisonous alkaloid cytisine quinolizidine