516 COMPOSITAE. Vou. IIL. 
90. ANTHEMIS [Micheli] L. Sp. Pl. 893. 1753. 
Annual or perennial herbs, with pinnatifid or dissected, alternate leaves, and usually large 
peduncled heads of both tubular and radiate flowers, terminating the branches, or heads 
rarely rayless. Involucre hemispheric, its bracts imbricated in several series, scarious-margined, 
appressed, the outer shorter. Receptacle convex, conic or oblong, chaffy at least toward the 
summit, the chaff subtending the disk-flowers. Ray-flowers pistillate and fertile, or neutral, 
the tube terete or 2-winged, the ray white or yellow, entire or 2-3-toothed. Disk-flowers 
perfect, fertile, yellow, their corollas with 5-cleft limbs. Anthers obtuse and entire at the 
base. Style-branches of the disk-flowers truncate. Achenes oblong, angled, ribbed or striate. 
Pappus none, or a short coroniform border. [Greek name of Camomile.] 
About 60 species, natives of Europe, Asia and Africa. Type species: Anthemis maritima L. 
Rays white. 2 
Rays neutral; plant glabrous, or nearly so, fetid. 1. A. Cotula. 
Rays pistillate ; plants pubescent. ; 
Annual ; chaff of the receptacle acute. 2. A, arvensis. 
Perennial ; chaff of the receptacle obtuse. 3. A. nobilis, 
Rays yellow; plant pubescent, or tomentose. 4. A. tinctoria. 
4. Achillea borealis Bongard. Northern Yar- 
row. Fig. 4555. 
Achillea borealis Bongard, Veg. Sitch. 149. 1831. 
More or less silky-woolly; stem erect, 16’ high or 
less. Leaves deeply bipinnatifid into narrow crowded 
lobes and segmerits, those of the stem few, sessile 
or nearly so, the ultimate divisions very small; co- 
rymb dense, strongly convex, 23’ broad, or less; in- 
volucre about 3” high, its bracts with broad black or 
blackish margins; rays 10-20, white or pink, broadly 
oblong or suborbicular, often 24” broad. 
In wet places, on hillsides and rocks, Newfoundland 
to Quebec and Alaska. Summer. Rocky Mountain 
vate referred to this species appear to be distinct 
rom it. 
1. Anthemis CétulaL. Mayweed. Dog’s or Fetid Camomile. 
Dillweed. Fig. 4556. 
Anthemis Cotula L. Sp. Pl. 894. 1753. 
Maruta Co ula DC. Prodr. 6: 13. 1837. 
Annual, glabrous, or sometimes pubescent 
above, glandular and with a fetid odor and 
acrid taste, much branched, 1°-2° high. Leaves . 
mostly sessile, 1-2’ long, finely 1-3-pinnately 
dissected into narrow, or almost filiform, acute 
lobes; heads commonly numerous, about 1’ 
broad; bracts of the involucre oblong, obtuse 
or obtusish, usually somewhat tomentose; rays 
10-18, white, at length reflexed, neutral, or 
rarely with abortive pistils, mostly 3-toothed; 
receptacle convex, becoming oblong, its chaff 
bristly, subtending the central flowers; achenes 
1o-ribbed, rugose or glandular-tuberculate; 
pappus none. 
In fields, waste places and along roadsides, all 
over North America except the extreme north. 
Naturalized from Europe, and widely distributed 
as a weed in Asia, Africa and Australia. Other 
names are mather, dog- or hog’s-fennel, dog-finkle, 
morgan. Dog-daisy. Pig-sty-daisy. Maise. Chig- 
ger-weed. Balders. June—Nov. 
. 
