Helenium flexuosum Raf.

Helenium flexuosunr Raf.
Mark W. Bierner, 1971
University of Texas Herbarium
Helenium flexuosum Raf.
Examined in revisional study of the decurrent-
leaved species of Helenium L.
H. F. U. ROCK
NEW YORK BOTANICAL GARDEN
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FLORA OF OHIO
OHIO STATE UNIVERSITY
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