COMPOSITE FAMILY 251 



Chiron, who is fabled to have healed wounds with some such 

 plant.) 



1. C. Jdcea (Brown Radiant Knapweed) is a garden escape, with 

 crimson florets, the outer ones larger ; pinnatifid outer bracts, and 

 irregularly jagged inner ones.— Fl. August, September. Perennial. 



2. C. nigra (Black Knapweed Hard-head). — A tough-stemmed 

 plant, I — 2 feet high ; lower leaves toothed, often with a few 

 small lobes at the base, upper narrow, tapering ; heads terminal, 



CENTAUREA cf ANUS and c. CALCITRAPA {Cortt Blue-bottle and Star-Thistle). 



globose, with, or more commonly without, a ray ; bracts brown or 

 almost black : the outer ones egg-shaped and fringed with spread- 

 ing bristles ; florets deep crimson ; pappus very short, tufted. — 

 Meadows ; abundar^t. — FI. June — September. Perennial. 



3. C. Scabiosa (Great Knapweed, Matfellon). — Larger and 

 stouter than the last, from which it is distinguished by its 

 pinnatifid leaves, almost always rayed heads, bracts downy, with a 

 broad brown fringed tip and margins, bright crimson florets, and 

 longer pappus. — Dry pastures ; common. — Fl. July — September. 

 Perennial. 



