%0 Journal Article %J Brittonia %D 1979 %T Opuntia fragilis (Cactaceae) Verified in Illinois Flora %A C. J. Sheviak %K biology %X

Opuntia fragilis has been reported only once from Illinois. Recent workers have not been able to find a substantiating specimen and have excluded the species from the flora. The missing specimen has now been found and is referable to this species.

%B Brittonia %V 31 %P 478-479 %G eng %U http://link.springer.com/article/10.2307/2806001 %R 10.2307/2806001