Assertion: fern's frond | /r/HasProperty | 20–50 cm tall
Facets:
value: above bearing the densely clustered sporangia
type: OTHER
Source sentences:
text: The fertile fronds are erect and shorter, 20–50 cm tall, usually with 2-3 pairs of sterile pinnae at the base, and 7-14 pairs of fertile pinnae above bearing the densely clustered sporangia.