Helenium flexuosum Raf.

Helenium flexuosum Raf.
Mark W. Bierner, 1971
University of Texas Herbarium
Helenium flexuosum Raf.
Examined in revisionai study of the decurrent-
leaved species of Helenium L.
H. F. L. ROCK
NEW YORK BOTANICAL GARDEN
Efgert, Herbarium Americanam.
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lei. H. En.
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