ASTER FAMILY 65 
in color through shades of pure yellow to brilliant orange-red, and this 
form is sometimes cultivated in home gardens. The plants grow 
1-3 ft. tall on prairies and plains at 3000-7000 ft., and bear flowers 
all summer. 
GOLDEN GLOW + JRUDBECKIA LACINIATA 
Plate 39, fig. 2 
The native Golden Glow is related to the popular Golden Glow 
of the garden. It is a striking plant, 3-6 ft. tall and bears many large 
flower-heads with long, spreading or drooping yellow rays. They 
bloom in midsummer and are found in meadows and along brook-banks 
in aspen and fir forests at 5000-8000 ft. 
BLACK-EYED SUSAN RUDBECKIA HIRTA 
Plate 39, fig. 4 
Black-eyed Susan, unlike its near relative Golden Glow, has a red- 
dish-brown, almost black, center and orange-yellow rays. It is cul- 
tivated also, but occurs naturally in meadows and bogs and along 
brook-banks at 5000-11000 ft. The plants are 1-4 ft. tall and bloom all 
summer. 
RAYLESS THELESPERMA ‘THELESPERMA GRACILE 
Plate 39, fig. 3 
As the name indicates, the Rayless Thelesperma has heads of fertile 
flowers only, ray-flowers being lacking. The heads are grouped in 
graceful clusters on slender stems, 2-4 ft. tall, and bloom all summer. 
The plants occur on prairies and plains at 3000-8000 ft. 
RAYED THELESPERMA  ‘THELESPERMA TRIFIDUM 
Plate 39, fig. 8 
The Rayed Thelesperma, in contrast to the one above, has broad 
yellow ray-flowers around a yellow center. It is a relative of Coreopsis 
