We don't have synonyms for cataphyll yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are cataphile and cataphylls.
(n) :
(botany) A leaf, sometimes abortive, sometimes persistent, that does not develop into a photosynthetic structure, but instead fulfills protective or storage functions. Examples include cotyledons, bud-scales, glochids, rhizome-scales, and bulb-scales.
(n) :
(botany) A leaf, sometimes abortive, sometimes persistent, that does not develop into a photosynthetic structure, but instead fulfills protective or storage functions. Examples include cotyledons, bud-scales, glochids, rhizome-scales, and bulb-scales.