Dryopteris mindshelkensis
- Peak month
- June
- Records since 2000
- 78
- Group
- Ferns and horsetails
Northern Buckler-fern
- Peak month
- July
- Records since 2000
- 78
- Scientific name
- Dryopteris expansa
Dryopteris pseudocomplexa
- Peak month
- August
- Records since 2000
- 70
- Group
- Ferns and horsetails
Forked Spleenwort
- Peak month
- April
- Records since 2000
- 65
- Scientific name
- Asplenium septentrionale
Mountain Male-fern
- Peak month
- August
- Records since 2000
- 62
- Scientific name
- Dryopteris oreades
Mountain Bladder-fern
- Peak month
- July
- Records since 2000
- 59
- Scientific name
- Cystopteris montana
Ostrich fern
- Peak month
- April
- Records since 2000
- 58
- Scientific name
- Matteuccia struthiopteris
Asian netvein hollyfern
- Peak month
- April
- Records since 2000
- 57
- Scientific name
- Cyrtomium fortunei