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m. long =Goldenrod, Solidago macrophylla.= 138a. Lower leaves broadly oval, obtuse, thickish, crenate; achenes glabrous =Goldenrod, Solidago erecta.= 138b. Lower leaves lanceolate, acuminate, thin, sharply serrate; achenes hairy --139. 139a. Stem usually simple; heads few in very small clusters =Goldenrod, Solidago caesia var. axillaris.= 139b. Stem usually diffusely branched; heads numerous =Goldenrod, Solidago caesia.= 140a. Lower leaves ovate, oblong, or oval, pinnately veined (5-15 dm. high) --141. 140b. Lower leaves linear-lanceolate. 3-5-veined (3-12 dm. high) --142. 141a. Stem and leaves rough-hairy =Goldenrod, Solidago rigida.= 141b. Stem and leaves smooth =Goldenrod, Solidago ohioensis.= 142a. Heads very few in a small cluster; leaves few and scattered =Goldenrod, Solidago houghtonii.= 142b. Heads very many, in a large cluster; stem very leafy --143. 143a. Leaves hairy =Goldenrod, Solidago graminifolia var. nuttallii.= 143b. Leaves smooth --144. 144a. Leaves folded, 8-20 mm. wide =Goldenrod, Solidago riddellii.= 144b. Leaves flat, 1-8 mm. wide --145. 145a. Leaves 4-8 mm. wide, distinctly 3-5-ribbed =Goldenrod, Solidago graminifolia.= 145b. Leaves 1-4 mm. wide, usually with 1 mid-vein =Goldenrod, Solidago tenuifolia.= 146a. Only 2-5 stem-leaves below the inflorescence (1-3 dm. high) =Goldenrod, Solidago cutleri.= 146b. Stem-leaves numerous --147. 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 arranged 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 u
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