60 
Vernonia missurica Raf., p. 1460 
f. missurica 
*V. x peralta Daniels, see named hybrids 
XANTHIUM, cocklebur 
+Xanthium spinosum L., spiny cocklebur, p. 1542 
X. strumarium L., common cocklebur, p. 1542 
var. canadense (Miller) Torrey & A. Gray [S: X. italicum 
Moretti, X. pensylvanicum Wallr., X. speciosum 
Kearney, X. varians E. Greene, X. wootonii Cockerell] 
(Cronquist, 1945a, 1980) 
var. glabratum (DC.) Crong. [S: X. chinense Miller, X. inflexum 
Mackenzie & Bush] (Cronquist, 1945a, 1980) 
BALSAMINACEAE, touch-me-not family 
IMPATIENS, touch-me-not 
¢Impatiens balsamina L., balsam, p. 1026 
I. capensis Meerb., spotted touch-me-not, p. 1026 
f. capensis 
I. pallida Nutt., pale touch-m 
f. dichroma Steyerm 
f. pallida 
“not, jewelweed, p. 1024 
BERBERIDACEAE, barberry family 
BERBERIS, barberry 
Berberis canadensis Miller, American barberry, p. 712 
2 
+B. thunbergii DC.,, Japanese barberry, p. 71 
+B. vulgaris L., common barberry, py 712 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
