ARALIACEAE (GINSENG FAMILY) 



4 EPILOBIUM. 



i a Leaves linear, entire 



LINEAR-LEAVED WILLOW-HERB. (E. linear*.) 

 b Leaves lanceolate, toothed 



PURPLE-LEAVED WILLOW-HERB. (E. coloratum.) 



5 6NAGRA EVENING PRIMROSE. (O. biennis.) 



6 KNEfFFIA. 



1 a Capsule oblong, sessile or short-stalked, prominently 



winged COMMON SUNDROP. ( K. fruticbsa.) 



b Capsule obovoid or club-shaped 2 



2 a Capsule sessile or very short-stalked, slightly winged 



SMALL SUNDROP. (K. pumila.) 

 b Capsule stalked, prominently winged 3 



3 a Capsule shorter than the stalk, hairy 



LONG-STEMMED SUNDROP. (K. longipedicellata.) 

 b Capsule longer than the stalk, sometimes hairy 



NARROW-LEAVED SUNDROP. (K. linearis.) 



7 CLARKIA. 



i a Petals deeply lobed CLARKIA. ( C. pulchella*) 



b Petals entire ; flowers usually double 



DOUBLE-FLOWERED CLARKIA. (C. elegans*) 



8 GODETI A GODETIA. (G. amoena.*) 



9 FtlSCHIA FUSCHIA. (F. magelldnica*) 



10 GAtJRA GAURA. (G. biennis*) 



11 CIRCAEA ENCHANTER'S NIGHTSHADE. (C. lutetiana.) 



4 HALORAGIDACEAE. Water Milfoil Family. 



1 PROSERPINACA MERMAID-WEED. (P. palustris.) 



2 MYRIOPHfLLUM. 



i a Spike 1-3 in. long, not leafy 



SPIKED WATER MILFOIL. (M. spicatum.) 

 b Spike 4-16 in. long, leafy 



VARIOUS-LEAVED WATER MILFOIL. (M. heterophyllum.) 



24 UMBELLALES. Carrot Order, 

 i ARALIACEAE. Ginseng Family. 



i ARALIA. 



1 a Shrub or tree usually with spines 



HERCULES CLUB. (A. spinbsa.) 

 b Plants more or less herbaceous, without spines 2 



2 a Plant more or less covered with bristly hairs; leaflets 



1-2 in. long BRISTLY SARSAPARILLA. (A. hispida.) 



b Plants not with bristly hairs; leaflets 2-6 in. long.... 3 



3 a Herb 3-6 ft. high with numerous branches 



SPIKENARD. (A. racembsa.) 



b Herb 1-3 ft. high, not branched, usually with i de- 

 compound leaf WILD SARSAPARILLA. (A. nudicaulis.) 



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