Assertion: beech's leaf | /r/HasProperty | visible difference
Facets:
value: between fertile and sterile fronds
type: OTHER
Source sentences:
text: Not all leaves have spores and there is no visible difference between fertile and sterile fronds, though the earliest leaves are sterile, the fertile leaves emerging later.
text: Not all leaves have spores and there is no visible difference between fertile and sterile fronds.