Plants › pondweed family
Berchtold's pondweed
Potamogeton berchtoldii
27 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
small pondweedPotamogeton pusillus
Fennel-leaf PondweedStuckenia pectinata
Hairlike PondweedPotamogeton trichoides
grass-wrack pondweedPotamogeton compressus
quillwortsIsoetes
Bluntleaf PondweedPotamogeton obtusifolius
Perfoliate PondweedPotamogeton perfoliatus
StonewortNitella
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 28,751 |
|---|---|
| Alaska | 27,627 |
| Canada | 368 |
| New York | 226 |
| Ontario | 226 |
| Massachusetts | 175 |
| Michigan | 147 |
| Connecticut | 120 |
| Russia | 99 |
| Wisconsin | 71 |
Counts show where people looked, not only where it lives.
Classification
| Kingdom | Plants · Plantae |
|---|---|
| Phylum | Vascular Plants · Tracheophyta |
| Class | monocots · Liliopsida |
| Order | Aroids, Water Plantains, Seagrass, and allies · Alismatales |
| Family | pondweed family · Potamogetonaceae |
| Genus | Pondweeds · Potamogeton |
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 Berchtold's pondweed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.