KEY FOR JUNE TO NOVEMBER 



209 a Plants with leafy stems Sanicula. p 192 



b Plants with only 2 or 3 leaves in a whorl beneath the 



umbel Panax. p 191 



210 a Plants with a single doubly-compound leaf 1-2 ft. high; 



flowers in umbels Aralia. p 190 



b Plants with more than i compound leaf 211 



211 a Stamens very conspicuous, usually numerous 212 



b Stamens not very conspicuous, 5 to each flower 213 



212 a Flowers in panicles Thalictrum. p 154. 



b Flowers in spikes Sanguisorba. p 166 



213 a Flowers in umbels Sanicula. p 192 



b Flowers in compact heads Bidens. p 236 



214 a Herbs with stinging hairs on the stems and leaves .... 215 

 b Herbs not with stinging hairs on the leaves and stems. . 216 



215 a Leaves alternate Urticastrum. p 14.5 



b Leaves opposite Urtica. p 14.5 



216 a When broken plants exude a milky juice 217 



b When broken plants do not exude a milky juice 220 



217 a Flowers with curved hoods opposite the sepals 218 



b Flowers not as in a 219 



218 a Hoods with incurved horns Asclepias. p 200 



b Hoods not with incurved horns Ascerates. p 200 



219 a Plants 1-6 ft. high, much branched; stamens 5 



Apocynum. p 200 

 b Plants usually i ft. or less high, sometimes spreading 



on the ground Euphorbia, p 180 



220 a Corolla conspicuously fringed Mitella. p 161 



b Corolla not conspicuously fringed, or sometimes wanting 221 



221 a Large herb 2 ft. or more high, with palmately lobed 



leaves 5 in. or more broad Ricinus. p 180 



b Plants not completely as in a 222 



222 a Leaves all basal 223 



b Leaves not all basal 225 



223 a Flowers in compact spikes Plantago. p 213 



b Flowers not in compact spikes 224 



224 a Leaves more or less lobed Heuchera. p 161 



b Leaves not lobed Saxifraaa. p 161 



225 a Some or all of leaves opposite 226 



b Leaves alternate 238 



226 a Prostrate, creeping herbs with rounded leaves 227 



b Erect herbs 228 



227 a Leaves with wavy margins; anthers orange 



Chrysosplenium. p 161 

 b Leaves with entire margins; anthers not orange 



Isnardia. p 189 



