Spotted Pondweed at suppressed
Identification history
| Landoltia punctata | 10 Mar 2021 | RWPurdie | ||
| Lemna disperma | 9 Mar 2021 | michaelb | ||
| Unidentified | 8 Mar 2021 | trevorpreston |
Identify this sighting
Please Login or Register to identify this sighting.
2 comments
JaneR
wrote:
8 Mar 2021
based on thallus shape and venation, it looks like Landoltia punctata except that no roots are evident. However, it looks too big and too flat to be the rootless Wolffia .
On balance, it is likely to be Landoltia punctata (in older books as Spirodela punctata).
On balance, it is likely to be Landoltia punctata (in older books as Spirodela punctata).
RWPurdie
wrote:
10 Mar 2021
Based on the Lemna disperma and Landoltia punctata that I've seen growing locally, the pattern of veins on the leaves looks more like the latter species, though Lemna can also have several veins. The only way to be absolutely sure is to remove a few plants and float them in a jar of water so it's easy to see the number of roots growing from the under side of each thallus.
Please Login or Register to comment.
Nearby sightings
Sighting information
- 16 - 100 Abundance
- 8 Mar 2021 01:54 PM Recorded on
- trevorpreston Recorded by
Additional information
- Less than 10cm Plant height
Species information
- Landoltia punctata Scientific name
- Spotted Pondweed Common name
- Highly Sensitive
- Local native
- Non-Invasive
- Machine learning
-
In flower
- External link More information
-
Synonyms
Spirodela punctata
Record quality
- Images or audio
- More than one media file
- Confirmed by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Description
- Additional attributes
