Plants › Cystopteridaceae
brittle bladderfern
Cystopteris fragilis
28 photos
Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
lady fernAthyrium filix-femina
lowland brittle fernCystopteris protrusa
Mackay's Fragile FernCystopteris tenuis
Rocky Mountain woodsiaWoodsia scopulina
Oregon woodsiaWoodsia oregana
bulblet fernCystopteris bulbifera
spreading wood fernDryopteris expansa
spinulose wood fernDryopteris carthusiana
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 70,321 |
|---|---|
| Canada | 8,008 |
| British Columbia | 2,406 |
| California | 2,033 |
| Russia | 1,705 |
| Ontario | 1,261 |
| Quebec | 1,002 |
| Washington | 900 |
| Colorado | 837 |
| Oregon | 781 |
Counts show where people looked, not only where it lives.
Classification
| Kingdom | Plants · Plantae |
|---|---|
| Phylum | Vascular Plants · Tracheophyta |
| Class | Ferns · Polypodiopsida |
| Order | Polypodiales |
| Family | Cystopteridaceae |
| Genus | fragile ferns · Cystopteris |
Study it in a deck
Or build your own from the species near you.
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- How much to rely on each source
Remember the name next time.
Practise brittle bladderfern with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.