126 



147a. Basal leaves much larger than the greatly reduced or bract- 

 like upper ones 148. 



147b. Leaves essentially uniform in size from base to summit of 

 stem 157. 



148a. Racemes or branches of the panicle either short and ar- 

 ranged along a more or less elongated central axis, or elongated 

 and ascending, scarcely recurved, forming a narrow, more or 

 less elongated panicle 149. 



148b. Racemes or branches of the panicle usually elongated, 

 spreading outwards, usually recurved, forming a widened 

 panicle 153. 



149a. Leaves mostly entire, the upper ones with smaller leaves 

 fascicled in the axils (5 20 dm. high) 



Goldenrod, Solidago speciosa, 



149b. Leaves mostly serrate, at least the basal ones 150. 



150a. Heads on pedicels 5 15 mm. long; achenes pubescent; 



stems usually clustered (1 5 dm. high, or prostrate) 151. 

 150b. Heads on pedicels not over 5 mm. long; achenes smooth or 



nearly so; stems usually single (6 12 dm. high) 152. 



151a. Basal leaves 7 12 cm. long Goldenrod, Solidago racemosa. 

 151b. Basal leaves 15 30 cm. long 



Golden rod, Solidago racemosa yar. gillmani. 



152a. Leaves pinnately veined Goldenrod, Solidago uliginosa, 

 152b. Leaves 3 5-ribbed Goldenrod, Solidago neglecta. 



153a. Both sides of the leaf pubescent or rough 154. 

 153b. Leaf not pubescent or rough oh both sides 155. 



154a. 3tem closely pubescent (2 8 dm. high) 



Goldenrod, Solidago nemoralis. 

 154b. Stem glabrous (512 dm. high) 



Goldenrod, Solidago juneea yar. scabrella. 



155a. Leaves rough above, smooth below (6 15 dm. high) 



* Goldenrod, Solidago patula, 

 155b. Leaves smooth on both sides (5 12 dm. high) 156. 



156a. Branches of the panicle spreading or recurved 



Goldenrod, Solidago juneea. 

 156b. Branches of the panicle upright 



Goldenrod, Solidago junoea yar. ramosa. 



157a. Stem more or less pubescent or hairy throughout (5 20 dm. 



high) 158. 

 157b. Stem smooth, at least below the inflorescence 161. 



158a. Involucre 2 2.7 mm. long Goldenrod, Solidago canadensis. 

 158b. Involucre 3 5 mm. long 159. 



