COMPOSITE. 



467 



on long peduncles. Involucral bracts 

 glabrous, lanceolate, obtuse, or with a 

 very minute not prickly point. Hairs of 

 the pappus feathery. 



In mountain pastures, in northern 

 Europe and Asia, and in the great cen- 

 tral ranges of both continents. Fre- 

 quent in Scotland, extending into north- 

 ern England, and North Wales. Fl. 



Fig. 558. 



10. Tuberous Thistle. Carduus tuberosus, Linn. (Fig. 559.) 

 {Cnicus, Eng. Bot. t. 2562.) 



Rootstock woody, usually shortly 

 creeping, emitting occasionally a few 

 thick, almost woody, tuberous roots, and 

 erect or ascending stems, but little di- 

 vided, or sometimes simple, about 2 feet 

 high. Radical leaves pinnatifid, the 

 lobes waved and prickly, slightly hairy 

 <above, with more or less of a loose cot- 

 tony wool underneath ; the stem-leaves 

 few, less divided, sessile or sometimes 

 very shortly decurrent. Flower-heads 

 not very large, ovoid, growing singly on 

 long terminal peduncles. Involucral 

 bracts lanceolate, not prickly, with more 

 or less of cottony wool. Hairs of the 

 pappus feathery. 



In moist, rich meadows, and marshy, 

 open woods, in western and south-cen- 

 tral Europe, extending eastwards to 

 Transylvania. In Britain, only in Wilt- 

 shire, near Heytesbury. Fl. summer. 



Fig. 559. 



