1200 CARDUACEAE 
less distinctly 3-ribbed than the lower: heads numerous, slender-peduncled, secund on the 
slender glabrous recurving branches of the inflorescence: involucres narrowly cylindric, 
4-4.5 mm. high, barely 2 mm. thick ; bracts linear-subulate, acute, rounded on the back : 
achenes finely pubescent. 
In dry soil, northern Texas. Summer and fall. 
59. Solidago austrina Small. Stems 5-18 dm. tall, glabrous, green or purple-tinged, 
striate-ridged : leaves rather numerous ; blades thick, glabrous, those of the basal and lower 
cauline leaves elongated, broadly linear to oblong, or sometimes slightly broadest above or 
below the middle, remotely and appressed-serrate or with flaring teeth, narrowed into 
petiole-like bases, those of the upper cauline much smaller, erect or appressed to the stem, 
mainly linear-lanceolate or oblong-lanceolate, entire or indistinctly toothed : heads numer- 
ous, secund on the short more or less recurved glabrous branches of the panicle: involucres 
campanulate, fully 5 mm. high, 3-3.5 mm. thick ; bracts linear-oblong to linear, obtuse, 
slightly keeled on the back : achenes pubescent. 
In swamps, middle North Carolina to Georgia. Summer and fall. 
60. Solidago neglécta T. & G. Stems 5-12 dm. tall, glabrous, purple or purple- 
tinged, striate-angled or angled above: leaves rather numerous; blades thickish, glabrous, 
those of the basal and lower cauline leaves often much elongated, oblong or oblong-elliptic 
to spatulate, 1-3 dm. long, serrate, narrowed into petiole-like bases, those of the upper 
cauline much smaller, oblong, oblong-elliptic or linear-lanceolate, ascending, entire or 
shallowly toothed, minutely veiny beneath: heads numerous, secund on the approximate 
glabrous, more or less curved branches of the one-sided panicle: involucres campanulate, 
fully 5 mm. high, 3 mm. thick; bracts oblong, sometimes almost linear-oblong, obtuse, 
rounded or slightly keeled on the back : achenes sparsely pubescent. 
In swamps, New Brunswick to Wisconsin, North Carolina and Illinois. Summer and fall. 
61. Solidago Gattingeri Chapm. Stems 5-9 dm. tall, striate, rather strict, glabrous : 
leaves rather numerous; blades scabrous above, those of the basal and lower cauline nar- 
rowly spatulate, or oblong-elliptic, shallowly toothed or nearly entire, acute, narrowed into 
petiole-like bases, those of the upper cauline leaves abruptly much smaller than those of 
the lower, erect or appressed to the stem, linear or linear-oblanceolate or linear-lanceolate, 
entire, acute or acuminate: heads rather numerous, secund on the ascending glabrous 
branches of the panicle: involucres campanulate, 4 mm. high, 3 mm. thick ; bracts oblong 
or linear-oblong, obtuse, rounded on the back : achenes glabrous. 
In dry or rocky soil, Tennessee to Missouri and Texas. Summer and fall. 
62. Solidago Missouriénsis Nutt. Stems 1.5-14 dm. tall, striate, glabrous : leaves 
rather numerous ; blades thickish, glabrous or essentially so, except the ciliate margins, 
those of the basal and lower cauline leaves mainly spatulate, often narrowly so, serrate, 
those of the upper cauline mainly linear or linear-lanceolate, acute or slightly acuminate, 
sharp- or appressed-serrate, sometimes with clusters of small leaves in the axils, all 3- 
ribbed but the upper ones less distinctly so: heads numerous, rather crowded, secund on 
the more or less curved glabrous branches of the panicle: involucres campanulate, 3.5-4 
mm. high, 2.5-3 mm. thick; bracts linear or oblong-linear, obtuse, rounded on the back 
achenes finely pubescent. 
In dry soil, Manitoba to Minnesota, Tennessee, Texas and Washington. Summer and fall. 
63. Solidago pinetórum Small. Stems 4-11 dm. tall, angled, glabrous, pue 
tinged: leaves rather numerous; blades glabrous, smooth, those of the basal and lower 
cauline broadly linear to linear-spatulate, 1-2.5 dm. long, serrate, sometimes sharply 50, 
acute or slightly acuminate, prominently 3-ribbed, narrowed into petiole-like bases, those 
of the upper cauline leaves linear or slightly broadest above the middle, mainly entire Mg 
undulate, often with clusters of smaller ones in the axils: heads numerous, secund on the 
spreading or recurved glabrous branches of the panicle : involucres cylindric-campanulate, 
about 4 mm. long, 2.5 mm. thick; bracts mainly linear, sometimes broadly so, obtuse, 
thickened along the back : achenes almost glabrous. 
In pine woods, middle North Carolina. Summer and fall. 2 
64. Solidago serótina Ait. Stems 6-25 dm. tall, more or less striate, airs : 
leaves rather numerous; blades thinnish, glabrous or slightly pubescent, those of vg 
upper cauline leaves elliptic, oblong or oblong-lanceolate, mostly 5-15 cm. long, acumina a 
serrate, prominently 3-ribbed: heads numerous, secund on the spreading or recurv : 
pubescent branches of the panicle: involucres broadly campanulate, 4 mm. high, about 
mm. thick; bracts mainly linear, obtuse, rather thin: achenes minutely pubescent. 
In moist soil, Newfoundland to British Columbia, Florida, Texas and Oregon. Summer and fail. 
65. Solidago Shórtii T. & G. Stems 5-13 dm. tall, striate or striate-ridged, eA 
owbescent: leaves rather numerous ; blades thickish, prominently 3-ribbed, those o 
