332 



COMPOSITAE. 



[Vol. III. 



2. Solidago petiolaris Ait. Downy Ragged 

 Golden-rod. (Fig. 3672.) 



Solidago petiolaris Ait. Hort. Kew. 3: 216. 1789. 



Stem rather slender, pubescent or puberulent, i-3 

 high, simple, or branched above. Leaves sessile, or 

 very short-petioled, oblong to oval, acute, obtuse or 

 mucrouate, entire or dentate, y&'-z' hong, rough or 

 ciliate on the margins; heads 2> // ~4 // high> i Q a termi- 

 nal narrow more or less compound thyrsus; involucral 

 bracts with green acute to acuminate tips, the outer 

 spreading, the inner appressed; achenes glabrous or 

 nearly so. 



In dry soil, Illinois to Kansas and Texas, east to North 

 Carolina and Florida. Variable, or perhaps includes sev- 

 eral species. Sept. -Oct 



3. Solidago caesia L,. Blue- 

 stemmed or Wreath Golden-rod. 

 (Fig. 3673. ) 



Solidago caesia L. Sp. PI. 879. 1753. 



S. gracilis Poir. in Lam. Encycl. 8: 476. 1808. 



Stem glabrous, slender, often glaucous, 

 usually bluish or purple, branched or sim- 

 ple, terete, i-3 high. Leaves lanceolate 

 or oblong-lanceolate, sessile, acuminate at 

 the apex, narrowed at the base, glabrous, 

 sharply serrate, 2 / -5 / long, 3 // -i5 // wide; 

 heads 2 // -3 // high, in axillary clusters 

 or racemes, or occasionally with some in a 

 short terminal thyrsus; bracts of the invo- 

 cre obtuse, appressed; achenes pubescent. 



In woods and thickets, Maine and Ontario 

 to Minnesota Florida, Arkansas and Texas. 

 Called also Woodland Golden-rod. Aug.-Oct. 

 Solidago caesia axillaris (Pursh) A. Gray, Proc. 



Am. Acad. 17: 189. 1882. 

 5". axillaris Pursh, Fl. Am. Sept. 542. 1814. 

 Heads few, in dense short axillary clusters 



leaves often entire. Nova Scotia to Ontario and New Jersey. 



much exceeded by the long thin leaves; upper 



4. Solidago flexicaulis L. Zig-zag or 

 Broad-leaved Golden-rod. (Fig. 3674.) 



Solidago flexicaulis L. Sp. PI. 879. 1753. 

 Solidago latifolia L,. loc. cit. 1753. 



Stem glabrous, angled, usually simple, zig-zag, 

 i-3 high. Leaves thin, ovate, acuminate at 

 the apex, abruptly narrowed at the base into a 

 margined petiole, somewhat pubescent, or gla- 

 brous beneath, sharply serrate, 2'-"]' long, \'-\' 

 wide, the uppermost sometimes lanceolate and 

 entire or nearly so; heads about 3" high, in 

 short axillary racemose clusters, and rarely also 

 in a narrow terminal thyrsus; bracts of the in- 

 volucre obtuse to acutish, appressed; achenes 

 hirsute-pubescent. 



In rich woods. New Brunswick to Georgia, west 

 to Minnesota and Missouri. Ascends to 2300 ft. in 

 the Catskills. July-Sept. 



