Genus 22.] 



THISTLE FAMILY. 



1 "> *? 



3j3 



5. Solidago Curtisii T. & G. 

 Curtis' Golden-rod. (Fig. 3675.) 



Solidago Curtisii T. & G. Fl. N. A. 2: 200. 



1841. 



Stem glabrous or sparingly pubescent, 

 simple or branched, slender, i>^ 3 high, 

 angled and grooved. Leaves thin, sessile, 

 elongated-lanceolate or sometimes broader 

 above the middle, long-acuminate, nar- 

 rowed below into an entire base, sharply 

 serrate, 3' -6' long, 4 // -i2 // wide, glabrous 

 or nearly so; heads 2 // -3 // high, in rather 

 loose axillary clusters and sometimes also 

 in a narrow terminal thyrsus; bracts of the 

 involucre few, obtuse. 



In mountain woods, Virginia and West 

 Virginia to Georgia. Aug.-Sept. 



6. Solidago bicolor L. White 



Golden-rod. Silver-rod. 



(Fig. 3676-) 



Solidago bicolor 1,. Mant. 114. 1767. 



Stem rather stout, hirsute-pubes- 

 cent, or nearly glabrous, 6' -4 high, 

 simple or branched. Basal and lower 

 leaves obovate or broadly oblong, 

 mostly obtuse, 2 / ~4 / long, i / -2 / wide, 

 narrowed into long margined petioles, 

 dentate or crenate-dentate, moie or 

 less pubescent; upper leaves smaller 

 and narrower, oblong or sometimes 

 lanceolate, obtusish or acute, sessile or 

 nearly so, often entire; heads i"-^" 

 high, crowded in a terminal narrow 

 thyrsus 2 / -7 / long, and sometimes also 

 clustered in the upper axils; rays 



white; bracts of the involucre obtuse; achenes glabrous. 



In dry soil, New Brunswick to Georgia, west to Ontario, Minnesota and Missouri. Ascends to 6300 



ft. in North Carolina. July-Sept. 



7. Solidago hispida Muhl. 

 Hairy Golden-rod. (Fig. 3677.) 



5. hispida Muhl. ; Willd. Sp. PI. 3: 2063. 1804. 

 Solidago hirsuta Nutt. Journ. Phil. Acad. 7: 



103. 1834. 

 Solidago bicolor vzx. concolor T. & G. Fl. N. 



A. 2: 197. 1841. 



Stout, stem densely pubescent or hir- 

 sute, simple, or sometimes branched, 

 1%-^ high. Lower leaves oval, acute, 

 or obtuse, petioled, pubescent on both 

 sides, usually dentate, 2 / ~5 / long, i / -2 / 

 wide; upper leaves oblong, sessile, 

 acute, dentate or entire, smaller, sessile; 

 heads about 3 // high, crowded in a dense 

 narrow terminal thyrsus and also often in 

 racemose clusters in the upper axils; rays 

 yellow; involucral bracts obtuse; achenes 

 with a few appressed hairs, or glabrous. 



In dry soil, Nova Scotia to western Ontario 

 and Minnesota, south to Pennsylvania, 

 Georgia and Wisconsin. More abundant 

 northward than the preceding species. As- 

 cends to 2000 ft. in the Catskills. Aug. -Oct. 



