Genus 22. 



THISTLE FAMILY. 



28. Solidago patula Muhl. Rough- 

 leaved or Spreading Golden-rod. 

 Fig. 4240. 



Solidago patula Muhl. ; Willd. Sp. PI. 3 : 2059. 

 1804. 



Stem stout, rather rigid, usually simple, 

 glabrous, or sometimes puberulent above, 

 2-7 high. Leaves thick, glabrous beneath, 

 exceedingly rough above, pinnately veined, 

 the lower and" basal ones very large, 3'-l6' 

 long, li'-5' wide, oval or elliptic, narrowed 

 into margined petioles, the upper smaller, 

 oval or oblong, sessile, acute, finely serrate 

 or the uppermost entire ; heads 2"~3i" high, 

 secund on the widely spreading and recurv- 

 ing branches of the loose panicle ; rays 

 small ; bracts of the involucre linear-ob- 

 long, obtuse. 



In swamps, Maine and Ontario to Minnesota, 

 south to Georgia, Missouri and Texas. As- 

 cends to 5000 ft. in North Carolina. Stem 

 strongly angled, at least below. Aug.-Oct. 



29. Solidago ulmifolia Muhl. Elm- 

 leaved Golden-rod. Fig. 4241. 



Solidago ulmifolia Muhl.; Willd. Sp. PI. 3: 



2060. 1S04. 



Stem slender, glabrous, or puberulent at 

 the summit, 2-4 high, simple, or branched 

 above, the arched branches puberulent or 

 pubescent. Leaves thin, oblong to elliptic- 

 lanceolate, acute or acuminate at the apex 

 and base, coarsely and sharply serrate, pin- 

 nately veined, glabrous or sparingly pubes- 

 cent, the lower and basal ones wider, 3'-S' 

 long, l'-li' wide, narrowed into margined 

 petioles, the upper smaller, sessile; heads 

 2" 3" high, secund on the usually few and 

 elongated, usually leafy branches of the 

 panicle; rays few, small,' deep yellow; 

 bracts of the involucre oblong-lanceolate, 

 obtusish. 



In woods and copses, Nova Scotia to Geor- 

 gia, west to Minnesota, Missouri and Texas. 

 Ascends to 2100 ft. in Virginia. July-Sept. 



Solidago microphylla Engelm., ranging from 

 Kansas to Texas, appears to be a race of this 

 species with acutish inner bracts of the involucre. 



30. Solidago Boottii Hook. Boott's 

 Golden-rod. Fig. 4242. 



S. Boottii Hook. Comp. Bot. Mag. 1 : 97. 1835. 



Stem glabrous, or puberulent above, slender, 

 usually branched near the summit, 2-5 high. 

 Leaves firm, pinnately and finely reticulate- 

 veined, the lower and basal ones ovate or 

 oblong-lanceolate, narrowed into margined, 

 sometimes ciliate petioles, acuminate at the 

 apex, sharply and rather coarsely serrate, 3'-6' 

 long, the upper smaller, entire, or finely ser- 

 rate, sessile ; heads 2"-3" high, secund on the 

 elongated, spreading or recurving branches of 

 the usually ample panicle ; rays few, small ; 

 bracts of the involucre linear-oblong, obtuse; 

 achenes pubescent. 



In dry woods, Virginia to Florida and Texas. 

 Recorded from Missouri. Ascends to 3000 ft. in 

 Virginia. July-Sept. 



