(A) Yarrow; Milfoil (Achillea Millefolium) is one 
of the most common of our wayside weeds. 
The stem is stout, gray-green usually simple, or fork¬ 
ing near the top. The leaves, alternating along and 
clasping the stem, are soft and feathery,—deeply and 
finely bipinnatifid. 
The flowers grow in very compact, flat-topped clusters 
at the top of the stem. Each flower head has a center 
of short, tubular, yellowish florets that turn brown or 
grayish as they grow old; they are surrounded by from 
four to six round, white rays. 
Yarrow is a very hardy plant; we may find it thriving 
beside roads where the dust has killed nearly every 
other living thing. Its leaves have a strong, not un¬ 
pleasant, aromatic odor. 
(B) Mayweed; Chamomile [Anthem,is Cotula) (Eu¬ 
ropean ) is also a common weed found by the wayside 
in company with the last species. The stem is very 
branchy, 8 to 20 inches high. The leaves are very finely 
divided. The strong, unpleasant odor of the foliage will 
at once correct the impression »bat it may be a daisy , 
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