Plants › adder's-tongue family
sparse-lobed grapefern
Sceptridium biternatum
25 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
leathery grapefernSceptridium multifidum
sensitive fernOnoclea sensibilis
Japanese honeysuckleLonicera japonica
Japanese climbing fernLygodium japonicum
Slender BrackenPteris ensiformis
American Royal FernOsmunda spectabilis
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 1,951 |
|---|---|
| North Carolina | 948 |
| Georgia | 488 |
| Arkansas | 396 |
| Texas | 211 |
| Mississippi | 194 |
| Alabama | 182 |
| Louisiana | 145 |
| Tennessee | 115 |
| South Carolina | 78 |
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 |
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 sparse-lobed grapefern with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.