Dennstaedtiaceae
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Bracken family
Dennstaedtiaceae
ワラビ科
A family including bracken (Pteridium aquilinum), distributed worldwide. Bracken is one of the most widely distributed ferns on Earth, forming large colonies in open grasslands, montane areas, and logged sites.
Key Characteristics
- ●Long-creeping subterranean rhizomes (containing allelopathic compounds)
- ●Sori arranged along frond margins (covered by false indusia)
- ●Large, 2- to 4-pinnate compound fronds
- ●Homosporous
Phylogenetic Position
Vascular plants > Polypodiophyta > Polypodiopsida > Polypodiales > Dennstaedtiaceae
Divergence Era
Cretaceous (ca. 100 million years ago–)
Representative Genera
ワラビ属（Pteridium）デンスタエティア属（Dennstaedtia）ヒメワラビ属（Microlepia）
Related Evolution Events
- ・Development of allelopathic mechanisms to suppress competing plants
- ・Rapid recolonization strategy for disturbed sites via subterranean rhizomes
Plants in Bracken family on this site
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