68 GARDEN FLOWERS. 



June ; Carolina. B. papyracca trichoclada (hairy-twigged) ; 

 flowers in June ; Carolina. B. pendula (pendulous) ; 40 feet ; 

 flowers in June ; Britain. B. Pontica (Pontic) ; hardy ever- 

 green ; 12 feet ; flowers in May ; Turkey. B. populifolia, (pop- 

 lar-leaved) ; hardy evergreen ; 30 feet ; flowers in July ; North 

 America; 1750. B.populifoha laciniata (cut-leaved) ; 30 feet ; 

 flowers in July. B. populifolia pendula (pendulous) ; flowers in 

 July. B. pubescens (downy) ; 30 feet ; flowers in June ; Ger- 

 many ; 1812. B. pumila (hairy-dwarf) ; 6 feet ; flowers in May ; 

 North America ; 1 762. B. rubra (red) ; 60 feet ; flowers in 

 July ; Canada. B. Scopolii (Scopoli's) ; 6 feet. B. tristis (sad) ; 

 fo feet ; flowers in May ; Kamtschatka. 



BIDENS. [Compositse.] Annuals, biennials, and peren- 

 nials, generally hardy % allied to Coreopsis. Propagated by 

 seed and division. Garden soil. 



B. arguta; herbaceous perennial; flowers yellow, in June; 

 Mexico; 1825. B. bipinnata (twice-leaved); hardy annual; 2 

 feet ; flowers yellow, in July ; North America ; 1687. B. leu- 

 cantha (white-flowered); hardy annual; 18 inches; flowers 

 white, in July ; South America. B.macrosperma (large-seeded); 

 hardy annual ; i foot; flowers yellow, in July ; Siberia ; 1829. 



There are many other species. 



BIGNONIA. Trumpet- Flower. See TECOMA. 



BINDWEED. See CONVOLVULUS. 



BIRTHWORT. See ARISTOLOCHIA. 



BITTER VETCH. See OROBUS. 



BLADDER SENNA. See COLUTEA. 



BISCATELLA. [Cruciferae.] A genus of hardy peren- 

 nials and annuals, of little beauty, growing in common soil. 

 Increased by seed and division. 



BISERULA. [Fabaceae.] A hardy annual, growing in 

 sandy soil. Increased by seed. 



B. pilednus ; hardy annual ; i foot ; flowers purple, in July ; 

 south of Europe ; 1640. 



