GENUS 90. THISTLE FAMILY. 517 
2. Anthemis arvénsis L. Corn or Field Camomile. Fig. 4557. 
Anthemis arvensis L, Sp. Pl. 894. 1753. 
Annual or sometimes biennial, not fetid; stem 
finely pubescent, usually much branched, about 
1° high, the branches decumbent or ascending. 
Leaves sessile, 1’-3’ long, 1-2-pinnately parted 
into linear or lanceolate acute lobes, less divided 
than those of the preceding species and with 
broader segments; heads commonly numerous, 
1-13’ broad; bracts of the involucre oblong, 
obtuse, usually somewhat pubescent, with broad 
scarious margins; rays 10-18, white, pistillate, 
spreading, mostly 2-toothed; chaff of the obtuse 
receptacle lanceolate, acute or acuminate; achenes 
oblong, obtusely 4-angled; pappus a mere border. 
In fields and waste places, Nova Scotia to Virginia, 
west to Michigan, Missouri, and on the Pacific coast. 
Naturalized from Europe. May-Aug. 
3. Anthemis ndbilis L. Garden, Scotch, 
White or Low Camomile. Fig. 4558. 
Anthemis nobilis L. Sp. Pl. 894. 1753. 
Perennial, pubescent, aromatic, much branched, 
6-18’ high, the branches procumbent. Leaves 
numerous, I’-2’ long, finely and compactly dis- 
sected into nearly filiform lobes and segments; 
heads about 1’ broad; bracts of the involucre ob- 
tuse, pubescent, their scarious margins broad; 
rays 12-18, white, spreading, pistillate, 2-3-toothed ; 
chaff of the conic receptacle broad, membranous, 
obtuse; achenes oblong, obtusely 3-angled; pappus 
none. 
Sparingly escaped from gardens, Rhode Island to 
Delaware, Michigan and Wyoming. Adventive from 
Europe. June—Aug. 
4. Anthemis tinctéria L. Yellow or Ox- 
eye Camomile. Fig. 4559. 
Anthemis tinctoria L. Sp. Pl. 896. 1753. 
Perennial, pubescent or tomentose; stem erect, 
branched, 1°-3° high, with nearly erect branches. 
Leaves sessile, 1’-3’ long, pinnately divided, the 
oblong segments pinnatifid into narrow acute 
lobes; heads few or several, 1’-13’ broad; bracts 
of the involucre oblong, obtuse, densely tomen- 
tose; rays 20-30, pistillate, usually 2-toothed, 
bright yellow or sometimes paler; chaff of the S 
nearly hemispheric receptacle lanceolate, acumi- 
nate, rather rigid; achenes 4-angled, somewhat 
compressed; pappus a crown-like border. 
In fields and waste places, New Brunswick to New 
Jersey, and locally escaped from gardens. Adventive 
from Europe. Native also of Asia. June—Sept. 
Anthemis aiirea (L.) DC., a species with small ray- 
less heads, was found many years ago near St. Louis, 
Missouri. 
