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Leaf sheaths, from left to right: E. hyemale, E. X ferrissii, and E. laevigatum. Equisetum X ferrissii is the hybrid between E. hyemale and E. laevigatum. The length of its leaf sheaths are intermediate between that of the two parents.
| | Copyright © 2004 by Robbin Moran
(contact: kcn2[at]cornell.edu)
[ref. DOL6823]
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