
Compositaceae 393 
several, the group involucrate by 3—7 tough bracts. Akenes pear-shaped, flattish. 
Pappus none in ours. (Origin? Possibly from Gk. evaxos—easily broken.) U. 
E. brevifolia Gr. 
ANAPHALIS PEARLY EVERLASTING 
Perennial, white-woolly; stem erect, leafy. Leaves alternate, lanceolate, sessile. 
Heads dioicous, many, corymbose; involucre-bracts many, white; receptacle chaffy, 
convex; flowers yellow. Pistillate corolla 5-toothed; pappus-hairs distinct to base. Stam- 
inate corolla slender; style unlobed; pappus-hairs united at base. Akenes oblong. Pap- 
pus of many capillary bristles. (Gk. a=not, knaphalon—a lock of wool; because the 
heads are chaff rather than wool. See Gnaphalium.) W.C.E. (A. margaritacea 
occidentalis; A. margaritacea subalpina; A. subalpina. ) 
A, margaritacea Benth. 
ANTENNARIA EVERLASTING 
Perennial, woolly. Leaves alternate. Heads dioicous or polygamo-dioicous ; flowers 
many, inconspicuous; involucre-bracts many, imbricate, white or colorless at least at tip; 
receptacle flat or convex, naked. Pappus-bristles very slender, united at base. Staminate- 
corolla tubular, 5-lobed; style unlobed; pappus bristles crisp, usually thicker at apex. 
Akenes small. Pappus of capillary bristles, in 1 whorl. (The pappus-bristles of the 
sterile flowers suggested the antennae of insects. ) 
A. Heads solitary; pappus-bristles of the staminate flowers not dilated at up. 
B. Plant with slender naked stolons. E. A. flagellata Gray 
BB. Plant without slender stolons but sometimes with thick ones. 
C. Pistillate stems 6—10 cm. high. E. A. latisquama, Pip. 
CC. Pistilate stems 2—3 cm. high. E. A. dimorpha T. & G. 
AA. Heads few to many. 
D. Plants stoloniferous, growing in patches. 
FE. Leaves over 3—6 cm. long including the petiole. 
F. Heads loosely racemose; inflorescence glandular. W. C. E. 
A. racemosa Hook. 
FF. Heads corymbose; inflorescence not glandular. 
G. Leaves green and glabrate above. W. C. E. 
A. howellii Gr. 
GG. Leaves tomentose on both sides. 
H. Stems 8—24 cm. high; involucre 5—7 mm. high. E. 
A. leucophaea, Pip. 
HH. Stem 20—30 cm. high; involucre 8—9 mm. high. W. C. E. 
A. concolor Pip. 
EE. Leaves 1—2.5 cm. long including the petiole. 
I. ‘Tips of involucre-bracts brown or green. 
J. Leaves glabrate above, loosely tomentose beneath. C. 
A. tomentella Nels. 
JJ. Leaves white-hairy on both sides. 
K. Plant not shrubby at base, 2—7 cm. high. W. C. E. 
A. media Gr. 
KK. Plant shrubby at base, 10—15 cm. high. E. 
A, umbrinella Rydb. 
II. Tips of involucre-bracts white or pink or yellowish. 
L. Plant shrubby a* base. 
