BUCKWHEAT FAMILY. 545 
8. Eriogonum multiceps Nees. 
Branched Eriogonum. (Fig. 1293.) 
E. multiceps Nees, Max. Reise N. A. 2: 446. 1841. 
E. gnaphaloides Benth. Kew Journ. Bot. 5: 263. 1853. 
Perennial by a slender root, scapose, densely 
white-tomentose throughout; stems short, tufted, 
much branched, sometimes several inches long. 
Scapes simple, 1/-5’ high; leaves spatulate, %4/— 
2/ long, numerous, obtuse at the apex, narrowed 
below into petioles; inflorescence capitate; involu- 
cres 3-12, sessile, 14’’ long, 5-6-toothed, the teeth 
acute; bracts foliaceous, spatulate; calyx white or 
rose-color, 113/’-214’’ long, campanulate, some- 
what villous, 6-cleft to about the middle, the seg- 
ments cuneate, obtuse or emarginate; stamens and 
style-branches exserted; achene 14’’ long. 
On dry plains, Nebraska and Colorado. June—Aug. 
g. Eriogonum pauciflorum Pursh. Few- 
flowered Eriogonum. (Fig. 1294.) 
E. pauciflorum Pursh, Fl. Am. Sept. 735. 1814. 
Eriogonum parviflorum Nutt. Gen. 1: 261. 1818. 
Perennial, root long and slender, stems very short, 
simple or sparingly branched, loosely tufted, covered 
by the scarious dilated bases of the petioles. Scapes 
erect, slender, simple, slightly tomentose, 2/-6’ high; 
leaves linear or linear-spatulate, 1/-3’ long, rather ob- 
tuse, but apparently acute from the strongly revolute 
margins, glabrous or sparingly pubescent above, white- 
tomentose or cottony beneath, narrowed into slender 
petioles; inflorescence capitate; involucres 4-10, 114’ 
long, turbinate-campanulate, 5-toothed, the teeth ob- 
tuse, more or less reflexed; calyx white, campanulate, 
14’’ long, glabrous, the segments ovate; achene 134 ’/ 
long, its faces swollen at about the middle, incon- 
spicuously striate-reticulated. 
On dry plains, Nebraska and Colorado. July—Sept. 
10. Eriogonum flavum Nutt. Yellow Eriogonum. (Fig. 1295.) 
Eriodgonum flavum Nutt. Fras. Cat. 1813. 
E. sericeum Pursh, Fl. Am. Sept. 277. 1814. 
Perennial, scapose, white-tomentose through- 
out, root short, scaly, spindle-shaped, stem very 
short and thick, simple and solitary or tufted 
and creeping, woody. Scapes 2/—12’ tall, erect; 
leaves crowded on the short stem, linear-oblong 
or oblong-spatulate, 1’—3’ long, mostly obtuse at 
the apex, flat, narrowed into petioles; petioles 
dilated at the base and imbricated; inflorescence 
regularly umbellate; involucres top-shaped, 2/’— 
214’ long, nearly entire, rather densely clustered; 
peduncles 14’-114’ long; bracts spatulate, folia- 
ceous; calyx yellow, 3/’ high, top-shaped, very 
villous, the segments obovate; stamens and style- 
branches exserted; achene constricted at the mid- 
dle, 2’’ long, villous at the summit, the angles 
undulate, the faces swollen. 
Nebraska and Kansas to the Northwest Territory 
and Arizona. June-Sept. 
