68 GARDEN FLOWERS. 



June ; Carolina. B. papyracea trichodada (hairy-twigged) j 

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

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

 green ; 12 feet; flowers in May; Turkey. B. populifolia {^^o^i- 

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

 America; 1750. B.populifolia /acinia^a (cut-lesLved) ; 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; 1762. B. rubra (red); 60 feet; flowers in 

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

 10 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. argutaj herbaceous perennial; flowers yellow, in June; 

 Mexico; 1825. B. bipinnala {twice-pmnRte ; hardy annual; 2 

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

 cafttha (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. 



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

 nials and annuals, of little beaut}^, growing in common soil. 

 Increased by seed and division. 



Biserula. [Leguminosae.] A hardy annual, growing in 

 sandy soil. Increased by seed. 



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

 south of Europe ; 1640. 



