Agricultural Weeds. 
AcracuLTURAL Weeds. 
363 
5. DURATION. 
6. HABIT OF GRO^VTH. 
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REMARKS. 
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A great pest when it takes to arable fields or gardens. 
Usual only on the margins of fields. 
Often common on calcareous soils. 
(Common on chalk. 'Pigs feed upon the root in 
\ the fallows at Baldock.' — Rev. IF. H. Coleman. 
Abundant on chalk, Streatley, Berkshire. 
A common agi'arian. 
Often a great pest, especially in pastures. 
A frequent weed on calcareous soils. 
Very unsightly in pastures, and often abundant. 
A common denizen of poor clays. 
Common in calcareous corn-fields. 
Common everywhere. 
A pretty though troublesome weed. 
Most frequent in apple and black poplar. 
I Too common in corn and flax ; much introduced in 
1 foreign seed. 
A very troublesome agrarian weed ; a pest in hedges. 
Common in calcareous arable land. 
Mostly introduced with seed. 
A large weed, common to stiff poor soil. 
Often very abundant with vetches on lime. 
A common weed in calcareous soils. 
Common in well-manured soil. 
A great pest ; usual in beans and barley. 
Everywhere. 
A common garden weed. 
Very common on the oolitic limestones. 
Corners of fields, and frequent in meadows. 
A common corn weed. 
Mostly in hedges. 
Mostly in moist lowland meadows; 
Common in deep poor soils. 
Common in upland pastures on limestone. 
In all wild upland situations. 
Common in pastures. 
A great pest in com fields. 
A good index of poor sandy soil. 
On all thin upland soils. 
A good index of a damp subsoil. 
(By the side of streams ; our largest leaved British 
1 weed. 
Too frequent, especially in stiff soils. , 
Everywhere. 
In all cultivated soils. 
I Very abundant in calcareous soils, or on cultivated 
\ sands. 
A good index of clay. 
An index of rich soil. 
