GENUS 22. THISTLE FAMILY. 393 
34. Solidago jancea Ait. Early or Sharp- 
toothed Golden-rod. Fig. 4246. 
Solidago juncea Ait. Hort. Kew. 3: 213. 1789. 
S. arguta scabrella T. & G. Fl. N. A. 2: 214. 1841. 
Solidago suees scabrella A. Gray, Syn. Fl. 2: Part 2, 
155. 1884. 
Solidago juncea ramosa Porter & Britton, Bull. Torr. 
Club 18: 368. 1891. 
Stem glabrous, or very nearly so throughout, 
rigid, rather stout, simple, or branched at the in- 
florescence, 14°-4° high. Leaves firm, glabrous, 
sometimes rough, lanceolate or oval-lanceolate, 
acute or acuminate, serrate, serrulate, or nearly 
entire, the lower large, sometimes 12’ long and 
2’ wide, long-petioled, the upper smaller, sessile; 
heads 13’-2” high, secund on the recurved or 
sometimes nearly erect branches of the usually ,«: 
ample spreading panicle; rays 7-12, small; bracts § 
of the involucre oblong or ovate-oblong, obtuse J 
or acute; achenes glabrous or sparingly pubescent. 
In dry or rocky soil, New Brunswick to Hudson 
Bay, Saskatchewan, North Carolina and Missouri. 
One of the earliest flowering species. Yellow top. 
Plume or pyramid-golden-rod. June-Nov. 
- Uy 
Qo, 
Ve 35. Solidago arguta Ait. Cut-leaved 
e Golden-rod. Fig. 4247. 
Solidago arguta Ait. Hort. Kew. 3: 213. 1789. 
S. Muhlenbergii T. & G. FL. N. A. 2: 214. 1841. 
S. Vaseyi Heller, Muhlenbergia 1: 7. 1900. 
S. Harrisiit Steele, Contr. Nat. Herb. 13: 369. 
I9I1I. 
Stem simple, rather stout, glabrous, or 
sparingly pubescent above, 2°-4° high. Leaves 
thin, pinnately veined, the lower and basal 
ones broadly ovate or oval, short-acuminate, 
3-16’ long, 1-5’ wide, narrowed into mar- 
gined petioles, or subcordate, sharply and 
coarsely serrate; upper leaves sessile, ovate 
to oblong, acute or acuminate, more or less 
serrate, smaller; heads 2%’—3” high, secund 
on the lateral racemose branches of the termi- 
nal, often leafy panicle; rays 5-7, large; 
bracts of the involucre oblong, obtuse; achenes 
glabrous or nearly so. 
In rich woods, Maine to Ontario, Virginia and 
Tennessee. Ascends to 2700 ft. in the Adiron- 
dacks. July—Oct. 
36. Solidago canadénsis L. Canada or 
Rock Golden-rod. Fig. 4248. 
Solidago canadensis L. Sp. Pl. 878. 1753. 
Solidago rupestris Raf. Ann. Nat. 14. 1820. 
S. canadensis glabrata Porter, Bull. Torr. Club 21: 
310. 1894. 
Stem slender, glabrous, or pubescent above, 
1°-5° high. Leaves thin, triple-nerved, linear- 
lanceolate, 2’-5’ long, 3-5” wide, entire, or ser- 
rate with somewhat appressed teeth, acuminate at 
the apex, narrowed at the base, sessile, or the 
lowest petioled, glabrous, or pubescent; heads 
small, 134” high or less, secund on the spreading 
branches of the often large panicle; rays 4-6, 
short; bracts of the involucre thin, linear, acutish ; 
achenes small, nearly glabrous. 
Hillsides, thickets and banks of streams, New- 
foundland to Virginia, Ontario, Saskatchewan, Ten- 
nessee and South Dakota. Aug—Oct. 
Solidago gilvocanéscens Rydb. differs in being 
eanescent; it ranges from Illinois to Manitoba, Sas- 
katchewan, Nebraska and Utah. 
