Landoltia punctata
Spotted Pondweed at suppressed
Identify this sighting
| Landoltia punctata | RWPurdie | 10 Mar 2021 | |
| Lemna disperma | MichaelBedingfield | 9 Mar 2021 | |
| Unverified | trevorpreston | 8 Mar 2021 |
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2 comments
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).
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.
Sighting information
- 16 - 100 Abundance
- trevorpreston Recorded by
- Less than 10cm Plant height
Collections
- Plants Other Fresh Water Plants trevorpreston Canberra & Southern Tablelands NatureMapr Landoltia punctata
Species information
- Landoltia punctata Scientific name
- Spotted Pondweed Common name
- Highly Sensitive
- Local native
- Non-invasive or negligible
- External link More information
-
Synonyms
Spirodela punctata
Record quality
Quality score
4 / 7
- Images or audio
- More than one media file
- Verified by an expert moderator
- Additional attributes
- Nearby sighting(s) of same species
- GPS evidence of location
- Description