178 BULLETIX 1074, r. S. DEPARTMENT OF AGRICULTURE. 
JEXKIX (JE^'KIN S CLUB). 
Descriptio-n. — Plant spring habit, late, tall : stem white, strong ; spike awnless, 
oblong- fusiform, dense, erect ; glumes glabrous, brown, midlong, midwide ; shoul- 
ders midwide, usually rounded ; beaks broad, obtuse, 0.5 mm. long, apical awns 
few, 2 to 10 mm. long ; kernels white, small, soft, broadly ovate, humped ; germ 
smaU, abrupt ; crease midwide, middeep to deep, sometimes pitted ; cheeks 
angular to rounded : brush small, midlong. 
This is the tallest commercial variety- of club wheat and 
is taller than most common wheats gi'own. Spikes, glumes, 
and kernels of Jenkin are shown in Plate LI, A. 
History. — The origin of ^tenkin wheat is undetermined. 
It is known to have been grown in the vicinity of Wilbur. 
Lincoln County, Wash., about 1895 {125). By 1900 it be- 
came grown around Walla Walla. Wash., and Pendleton, 
Oreg., and during the next decade largely replaced other 
varieties in those sections, being grown from both fall and 
spring sowing. 
Distrihution. — Grown in Idaho, Oregon, and Washing- 
ton. (Fig. 73.) 
Fig. 7 3. — Outline 
map of a portion 
of the Pacific 
Northwest, show- 
ing the distribu- 
tion of Jenkin 
wheat in 19 19. 
Estimated area, 
66.500 acres. 
KEDCHAFF I BED CHAFF CLUB i 
Description. — Plant spring habit, midseason. midtall : 
stem white, strong ; spike awnless. clavate, dense, erect ; 
glumes glabrous, light brown, midlong, midwide; shoulders midwide. usually 
oblique ; beaks wide, pbtuse, 0.5 mm. long ; apical awns few. 2 to 10 mm. long ; 
kernels white, short, soft, ovate, humped ; germ small, abrupt ; crease midwide, 
shallow ; cheeks usually angular ; brush small, midlong. 
Redchaff differs from Jenkin in being shorter, earlier, in having a more 
clavate spike and lighter brown glumes. Spikes, glumes, and kernels of Red- 
chaff are shown in Plate LI. B. 
History. — The origin of Redchaff is undetermined. According to Hunter 
(12.J, p. 24), it was an important variety of club wheat 
grown in the Columbia Basin of Oregon and Washington 
in 1907. 
Distribution. — Grown in Idaho, Oregon, and Washing- 
ton. fFig. 74.) 
Syiionyrn^.— Oregon Red Chaff and Red Chaff' Club. The 
name Oregon Red Chaff sometimes is used for the Redchaff 
varietj'. but is more commonly applied to Foisy. Red Chaff 
Club is the name used by most growers of the variety. 
BLUECHAFF (BLUE CHAFF CALVEKT CLUB 
Fig. 7 4. — Outline 
map of a portion 
of the Pacific 
Northwest, show- 
ing the distribu- 
tion of Redchaff 
wheat in 1919. 
Estimated area, 
40,000 acres. 
Description. — Plant intermediate to spring habit, late, 
midtall ; stem white, strong ; spike a%vnless, clavate, dense, 
erect ; glumes glabrous, bluish brown, midlong, midwide ; 
shoulders wanting to narrow, usually rounded ; beaks narrow, incurved, obtuse, 
0.5 to 1 mm. long; apical awns few, 2 to 20 mm. long; kernels white, short to 
midlong, soft, ovate, humped ; genu small : crease midwide. shallow ; cheeks 
angular; brush small, midlong. 
The glumes of Bluechaff have a distinct bluish tinge not observed in any 
other club wheats. Spikes, glumes, and kernels of this variety are shown in 
Plate LII, A. 
