PRIMULACEAE (PRIMROSE FAMILY) 



2 PRIMULACEAE. Primrose Family. 

 i PRfMULA. 



1 a Leaves incised or deeply lobed at least Vi distance to 



midrib CHINESE PRIMROSE. (P. sinensis*) 



b Leaves not lobed as in a 2 



2 a Flowering stalk with successive whorls of flowers .... 3 

 b Flowering stalk with a terminal umbel or head of 



flowers 4 



3 a Leaves 1-2 in. long; flowers about % in. broad 



BABY PRIMROSE. (P. for best*) 

 b Leaves 2-8 in. long; flowers about i in. broad 



JAPANESE PRIMROSE. (P. japonica*) 



4 a Flowers in a head ; each flower sessile 



HIMALAYAN PRIMROSE. (P. denticulata* ) 

 b Flowers in umbels ; each flower stalked 5 



5 a Flowering stalk less than 2 in. high, or wanting; flowers 



no higher than the leaves 



COMMON PRIMROSE. (P. vulgaris*) 

 b Flowering stalk 2 in. or more high 6 



6 a Umbel i-sided ; leaves with winged petioles 



ENGLISH COWSLIP. (P. officinalis*) 

 b Umbel not i-sided; petioles not usually winged 7 



7 a Calyx wide open, loose . SPREADING PRIMROSE. (P. obc onica.*) 

 b Calyx rather closely enveloping the corolla tube 8 



8 a Leaves somewhat notched, ovate-oblong to heart-shaped 



FRINGED PRIMROSE. (P. cortusoldes*) 

 b Leaves toothed, not notched, oblong to lanceolate 



POLYANTHUS. (P. polydntha*) 



2 DODECATHEON SHOOTING STAR. (D. meadia*) 



3 Cf CLAMEN CYCLAMEN. (C. latifolium*) 



4 HOTT6NIA AMERICAN FEATHERFOIL. (H. inflata.) 



5 SAMOLUS WATER PIMPERNEL. (S. floribundus.) 



6 LYSIMACHIA. 



1 a Plant prostrate; leaves rounded or broadly ovate 



MONEYWORT. (L. nummularia.) 

 b Plants erect; leaves ovate to lanceolate 2 



2 a Flowers borne singly in the axils of the leaves 



CROSSWORT. (L. quadrifblia.) 

 b Flowers borne in terminal panicles or racemes or in 



clusters in the axils 3 



3 a Flowers white; plant cultivated in gardens 



JAPANESE LOOSESTRIFE. (L. dethroldes*) 

 b Flowers yellow ; plants not cultivated 4 



4 a Leaves usually in whorls of 3 or 4; plant 2-4 ft. high 



GOLDEN LOOSESTRIFE. (L. vulgaris.) 

 b Leaves opposite, not in whorls; plant Vz-2 ft. high 



BULB-BEARING LOOSESTRIFE. (L. terrestris.) 



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