WEEDS 
31. Pink Cockle: Cowherb: Cow 
of pink cockle are similar to those otf 
poisonous, and injure flour in the same 
way, but the plant looks quite different. 
It is bushy or spreading, is very smooth, 
and the leaves are broad and are op- 
posite each other on the stem. The 
flower is pink. 
32. Annual Sow Thistle: Common 
Sow Thistle.—-A coarse plant with 
fibrous roots and thick stem, mostly 
unbranched, one to five feet high, ter- 
minating in several clusters of pale yel- 
low, composite flowers. All the leaves 
are margined with soft, spiny teeth. 
The lower leaves 
have petioles 
(stalks) and are 
175 
Cockle. — The seeds 
corn cockle, are also 
Pink COCKLE 
Corn Sow THISTLE 
dandelion. 
weeds. 
deeply cut or notched; and the upper 
ones are much smaller, have no petioles, 
and clasp the stem by an arrow-shaped 
base. The tender leaves are sometimes 
used as a salad and as a potherb. 
33. Corn Sow Thistle: Milk Thistle. 
— This plant resembles the preceding, 
but it springs from deep perennial roots 
and rootstocks like Canada thistle; is 
more branched and spreading; and its 
flowers are larger and of a brighter 
yellow color, suggesting those of the 
Both of these sow thistles are considered bad 
Their seeds are provided with a tuft of hairs as is 
