The VEGETABLE SYSTEM. 67 
2. PRICKLY SOWTHISTLE. 
Plate 115. Fig. 2. Jagged, prickly Sowthistle. 
Chara&er of the Species. SonchGs olreaceus al'per. 
The Cups and Footftalks of the Flowers are fmooth : 
the Leaves are edged with brown weak thorns. 
Fig. 2. a b. 
This is an Annual, native of our corn-fields and garden grounds, 
and flowers from July to November, in a repeated fucceflion : the 
feeds fcattered in July, raife Plants that flower in Augufl: ; and this 
continues till the frofts kill them. It is two feet high, and the Stalks 
and Leaves are of a good frefh green : the Flowers are yellow. 
Linnjeus thinks this only a variety of the fmooth Sowthiftle ; and 
Ray, on the other hand, makes many Species out of this one, as 
the Leaves are more or lefs jagged : Extreams are generally wrong. 
This Plant will not be railed from feeds of the fmooth kind : but all 
its variations in jagging, will rife from its own Seed. I have tried 
it at Bayefwater this lummer. 
If the Stalk of the jagged kind be cut down, branches, with 
undivided, but prickly Leaves, will rife from the part left : but this 
is all. The fmooth will not become prickly, nor this fmooth by 
any management. 
3. ROUGH FOOT STALK’D SOW-THISTLE. 
Plate 1 15. Fig. 3. 
Chara&er of the Species. Sonchus Canadenfis; 
The Footftalks of the Flowers are long and rough : 
the Leaves are deeply finuated. 
Fig. 3. al. 
This is an Annual, native of Canada, and flowers in Augufl:, 
The Leaves are of a frefh green on the upper fide, and grey below : 
the Flowers are blue. 
4. SCALY- 
