Centaurea. ] COMPOSIT &. 161 
CENTAUREA Linn. 
GC. nigra Linn. Knapweed. 
Districts I. IT. OI. IV. V. VI. VIL. VII. IX. 
Native. Fields, banks, roadsides, waste places, &c. Very 
common. Peren. July—September. 
From sea-level, to 1,350 feet by the Connor Hill road 
(R.W.S.), and to 1,500 feet on the Reeks (Druce). 
iy record in 1836: Dr. Taylor, Flor. Hib. (as C. Jacea 
nn.). 
Plants with white flowers are not uncommon especially 
in the Dingle peninsula, while the form with radiant flowers 
has been noted in the following localities—I. Roadside above 
Inchee bridge and beside the Glengarriff road near Kenmare, 
1904; near Gowlane north of Kenmare, 1908: R.W.S.— 
II. Base of Carig Mountain near Kenmare (Dr. Taylor) Flor. 
Hib.—as C. Jacea.—V. Doon Point, Ferriter’s Cove, north- 
west of Ventry : Hart 1884. Quite frequent in the extreme 
west of the Dingle peninsula, as about Galierus, Smerwick 
Harbour, Brandon Creek, &c., and especially abundant 
about Dunmore Head, 1905.VI. On the banks of the 
River Flesk above Coltsmann’s bridge and near Sherehee 
to the south-east of Killarney, 1903; sparingly in the 
Clydagh valley, 1909; north of Beaufort bridge, 1901.— 
VII. Between Castlemaine and Milltown and in a field near 
Dysert south of Castleisland, 1903—VIII. Near Lerrig 
north of Ardfert and near Listowel. and—IX. In several 
localities about Listowel, 1905: R.W.S. 
This radiant form ascends to 1,000 feet in the Clydagh 
valley (R.W.S.). 
[C. Jacea Linn. ‘“ Base of Carig Mountain near Ken- 
mare” (Dr. Taylor) Flor. Hib. 1836. The plant intended 
was almost certainly the radiant form of C. nigra mentioned 
above. | 
(C. Cyanus Linn. Corn Blue-botile —III. A garden weed 
about Waterville, 1905.—IV. In a flax plot near the head 
of Cottoner’s River south of Killorglin, 1890.—VI. With 
flax near Farranfore, and—VII. near Knockaunnaglashy 
west of Tullig: R.W.S. 1889 ; with flax near Clogherbrian, 
Tralee Bay, 1892: R.W.S. With the disappearance of flax 
as a crop in Kerry, this plant has almost quite died 
out. It was at best but a rare colonist, nowhere established, 
and is now seen only as a garden outcast or casual.] 
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