Plants › adder's-tongue family
leathery grapefern
Sceptridium multifidum
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
Cutleaf GrapefernSceptridium dissectum
rattlesnake fernBotrypus virginianus
common moonwortBotrychium lunaria
blunt-lobed grapefernSceptridium oneidense
American parsley fernCryptogramma acrostichoides
Herb RobertGeranium robertianum
sensitive fernOnoclea sensibilis
sparse-lobed grapefernSceptridium biternatum
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 12,749 |
|---|---|
| Alaska | 10,258 |
| Canada | 2,066 |
| Ontario | 914 |
| Russia | 910 |
| British Columbia | 546 |
| Michigan | 473 |
| California | 391 |
| Washington | 313 |
| Quebec | 256 |
Counts show where people looked, not only where it lives.
Classification
| Kingdom | Plants · Plantae |
|---|---|
| Phylum | Vascular Plants · Tracheophyta |
| Class | Ferns · Polypodiopsida |
| Order | adder's-tongues and allies · Ophioglossales |
| Family | adder's-tongue family · Ophioglossaceae |
| Genus | grapeferns · Sceptridium |
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 leathery grapefern with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.