1192 CARDUACEAE 
Leaves near the inflorescence with oblanceolate or spatu- 
late blades. 
Involuere 3.5-4 mm. high: bracts thin. 70. S. nemoralis. 
Involucre 4.5-5.5 mm. high: bracts thick. 71. S. longipetiolata. 
Leaves near the inflorescence with ovate or oval or obo- 
vate blades. 
Heads mostly over 12-flowered : foliage gray. 72. S. mollis. 
Heads mostly less than 12-flowered : foliage green. 73. S. radula. 
Blades of the upper leaves narrowed into petiole-like bases : 
involucres 3 mm. high. 74. S. Drummondii. 
1. Solidago caésia L. Stems 3-11 dm. tall, terete, glabrous, more or less glaucous, 
simple or widely branched : leaf-blades spatulate on the lower part of the stem to broadly 
linear, or narrowly or linear-lanceolate above, 6-14 cm. long, mostly less than 2 cm. wide, 
acute or acuminate, serrate, sometimes coarsely or sharply so, above the entire base, pale 
green beneath, glabrous: heads in axillary, often raceme-like, clusters: involucre cylin- 
dric-campanulate, 3.5-4 mm. high, 1.5-2 mm. thick ; bracts obtuse: achenes pubescent. 
In woods and thickets, Maine to Ontario, Minnesota, Florida and Texas. Summer and fall. 
2. Solidago asterifólia Small. Similar to S. caesia, in habit, but somewhat stouter : 
leaf-blades elliptic, sometimes narrowly so, 2.5-9 cm. long, mostly over 2.5 cm. wide, 
acuminate, coarsely and sharply serrate above the entire cuneate base, paler beneath than 
above, sómewhat pubescent about the nerves beneath, or glabrous at maturity : heads in 
axillary clusters: involucres narrowly campanulate, 4-5 mm. high, 2.5-3 mm. thick; 
bracts obtuse : achenes pubescent. 
In thickets and on hillsides, Georgia to Louisiana. Summer and fall. 
3. Solidago flexicaülis L. Stems 2-9 dm. tall, angled, usually simple, glabrous: 
leaf-blades ovate to oval above the petiole-like base, 5-15 cm. long, acuminate, sharply and 
often doubly serrate with more or less flaring narrow teeth, somewhat pubescent beneath : 
heads in axillary clusters which are sometimes aggregated into a bracted thyrsus: involu- 
cres cylindric-campanulate, 4-5 mm. high, 2-2.5 mm. thick; bracts obtuse: achenes 
pubescent. 
In rich woods or on rocky hillsides, New Brunswick to South Dakota, Georgia and Kansas. Sum- 
mer and fall. 
4. Solidago flaccidifólia Small. Stems 6-13 dm. tall, angled, glabrous, simple or 
nearly so: leaf-blades elliptic-obovate on the lower part of the stem to elliptic above, 6-19 
em. long, acuminate, coarsely serrate above the entire base, light green above, pale green 
beneath, glabrous: heads in axillary clusters : involucres campanulate, 3 mm. high, about 
2 mm. thick ; bracts obtuse: achenes pubescent. 
On hillsides, northwestern Georgia. Fall. 
5. Solidago Curtísii T. & G. Stems 5-14 dm. tall, angled, usually simple, glabrous : 
leaf-blades relatively long, spatulate-elliptic on the lower part of the stem to narrowly 
elliptic or linear-elliptic above, 8-20 cm. long, acuminate, coarsely serrate above the entire 
base, finely pubescent beneath : heads in axillary, sometimes raceme-like clusters : involu- 
cres narrowly campanulate, 4.5-5 mm. high, about 2 mm. thick; bracts mainly linear, 
rather obtuse : achenes pubescent. 
In mountain woods, Virginia and West Virginia to Georgia and Tennessee. Late summer and fall. 
6. Solidago lancifdlia T. & G. Stems 5-13 dm. tall, angled, simple or sparingly 
br&nched, glabrous : leaf-blades relatively long, similar to those of S. Curtisii, but glabrous 
or essentially so: heads in axillary, commonly raceme-like clusters : involucres broadly 
campanulate, 5-6 mm. high, about 3 mm. wide ; bracts mainly oblong, rounded at the apex : 
achenes pubescent. RET 
On shaded mountain slopes or summits, North Carolina and Tennessee. Summer and fal. 
7. Solidago pübens M. A. Curtis. Stems 4-15 dm. tall, angled, mostly simple, 
pubescent : leaf-blades oblong-spatulate at the base of the stem, to elliptic-spatulate, oe 
or linear-elliptic above, 5-16 em. long, acuminate, appressed or sharply serrate, manifestly 
pubescent beneath: heads in axillary, often raceme-like clusters: involucres Sipag tt 
campanulate, about 4 mm. high, 2 mm. thick ; bracts copiously pubescent, the inner lin- 
ear, all obtuse : achenes pubescent. 
In rich mountain woods, North Carolina, Tennessee and Georgia. Summer and fall. 
8. Solidago Buckleyi T. & G. Stems apparently over 5 dm. tall, angled, puse 
cent: leaf-blades oblong or elliptic-oblong, 5-9 cm. long, acute at both ends, appressed- 
serrate above the broadly cuneate base, pubescent beneath : heads in small axillary clusters : 
involucres campanulate, about 4 mm. high, 2-2.5 mm. thick ; bracts lanceolate to linear- 
lanceolate, acute, the outer pubestent : achenes glabrous. 
On mountain slopes, middle Alabama. Fall. 
