VIOLACEAE (VIOLET FAMILY) 



5 VIOLACEAE. Violet Family. 

 i VIOLA. 



1 a Leaves all basal 2 



b Plants with stem leaves, and flowers in the axils 14 



2 a Part or all of leaves deeply lobed or cleft, not merely 



incised at base 3 



b Leaves not deeply lobed or cleft, sometimes incised at 



base 5 



3 a Plant hairy; lobes of leaves toothed or cleft 



EARLY BLUE VIOLET. (V. palmhta.) 

 b Plants not noticeably hairy; lobes of leaves linear.... 4 



4 a Petals bearded or hairy COAST VIOLET. (V. brittoniana.) 



b Petals not bearded or hairy 



BIRD'S-FOOT VIOLET. (V. pedata.) 



5 a Flowers white with purple veins 6 



b Flowers some shade of blue or violet 8 



6 a Leaves broadly heart-shaped or rounded ; flowers usually 



fragrant SWEET WHITE VIOLET. (V. bldnda.) 



b Leaves ovate to lanceolate, not heart-shaped at base .... 7 



7 a Leaves ovate to oblong 



PRIMROSE-LEAVED VIOLET. (V. primulaefblia.) 

 b Leaves lanceolate. . .LANCE-LEAVED VIOLET. (V. lanceolata.) 



8 a Flowers fragrant; stolons present; plant cultivated and 



escaped ENGLISH VIOLET. (V. odorata*) 



b Flowers not fragrant; stolons not present 9 



9 a Leaves heart-shaped, often broader than long, not in- 



cised at base 10 



b Leaves lanceolate to ovate or arrow-shaped, usually in- 

 cised at base 13 



10 a Leaves narrowly heart-shaped, the base of blade spread- 

 ing at right angles to petiole ; white base of flower 

 conspicuous .... THIN-LEAVED WOOD VIOLET. (V. obliqua.) 

 b Leaves heart-shaped to ovate, the base of blade some- 

 what folded or hood-shaped n 



it a Plant growing in wet places and swamps; flowers often 

 darker toward the base 



MARSH BLUE VIOLET. (V. cucullata.) 

 b Plants growing in moist woods and meadows, not in 



swamps 12 



12 a Flowers deep violet-purple; stalks usually 2 in. or less 



long in early spring. .EARLY BLUE VIOLET. (V. palmata.) 

 b Flowers violet; stalks usually 2 in. or more long 



MEADOW BLUE VIOLET. (V. papilion&cea.) 



13 a Plant hairy; leaves rather ovate 



OVATE-LEAVED VIOLET. (V. fimbridtula.) 

 b Plant not hairy; leaves lanceolate to arrow-shaped 



ARROW-LEAVED VIOLET. (V. sagittata.) 



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