
292 PLANTS GROWING IN DRY SOIL. 
spreading around on the ground like a rosette ; veined conspicuously with 
purple. Flower-sta/k ; one to two inches high; naked, or bearing one leaf ; 
slender or forked above. 
The prevailing idea that the leaves of the hawkweed re- 
semble the rattlesnake, serve better to identify it from its 
numerous relatives, than which it is by far more interesting, 
than to recall to mind the dreadful creature for which it is 
named, or to remove the venom of his bite. 
The plant grows in dry soil, sometimes by the waysides, in 
the meadows, or in the open woods, 
HT. Greenit, Green’s hawkweed, has spatulate, tufted, basal 
leaves which narrow into a petiole, It is found in the dry soil 
of the mountains of Pennsylvania, Virginia and West Virginia. 
FIELD SOW THISTLE. 
Sdénchus arvénsts, 
FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 
Chicory. Bright yellow. Scentless. Occastonal in the eastern Summer. 
and middle states, 
Flower-heads: large; showy ; clustered closely together and bursting out 
later into a soft, downy pappus. Jzvolucre : of numerous strap-like scales. 
Leaves : long, pointed, blade-like ; clasping by a heart-shaped base ; saw-toothed. 
Stem: one to three feet high; branched; hollow; bristly. 
In dry fields and along roadsides ; in salt meadows and by 
streams we find this showy, coarse weed. It has come to us 
from Europe and is also a native of Asia. Every year it ex- 
tends its range and becomes more common. The flower opens 
at five o’clock in the morning, begins to close at about eleven 
o’clock and by noon it has entirely shut out the world. 
BLACK-EYED SUSAN. CONE-FLOWER. 
Rudbéckia hirta. 
FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 
Composite. Deep yellow, purple centre. Scentless. General. Midsummer. 
Flower-heads : \arge; terminal; solitary and composed of both ray and disk 
flowers ; the former often one and three quarter inches long, the latter arranged 
in the form of a cone and chocolate brown in colour. Zeaves: lanceolate ; 
narrow ; rough and disagreeable to the touch; the lower ones on petioles, 
the upper ones sessile. Sve : one to two feet high; rough; usually branching. 

