Sagittaria platyphylla
Sagittaria at Molonglo, ACT
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| Sagittaria platyphylla | MichaelBedingfield | 5 Apr 2022 |
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Significant sighting
User's notes
Coombs Ponds.
9 comments
5 Apr 2022
Reported previously but disappeared during drought. Now recovered. FYI @MichaelMulvaney.
5 Apr 2022
looks like a young plant.
If possible, it would be worth digging up to see if it is a regrowth (from rhizome) or a regeneration from seed (in which case, likely to have very little belowground except roots).
If possible, it would be worth digging up to see if it is a regrowth (from rhizome) or a regeneration from seed (in which case, likely to have very little belowground except roots).
5 Apr 2022
It is not possible for me to do that. I'm leaving it to Michael M to have the rangers deal with it.
9 Apr 2022
Thanks Michael B - I have bene away but indicated to the @ACTParks-InvasivePlantsTeam that I would be away so hopefully they have followed up - If I don't here from them on Monday I will go and dig it up cheers
Michael M
Michael M
11 Apr 2022
No contact from the Parks Invasive Species team, which was disappointing, but I removed 208 plants today (11 April 2022). I think there are more submerged plants but difficult to find them all will need ongoing surveillance. Plants in main water pond had seed pods and flowers but did not seem to have ripe seed. I removed all the flowering emergent forms of the plant. I understand the submerged rosette form of the plan can't produce flowers or seeds but can form rhizomes and corms. So a real hard one to eradicate
12 Apr 2022
Thanks Michael M. I will check again in the future to see if there is regrowth.
12 Apr 2022
Thanks and I will need to find some waders or next time go in my swimmers
Cheers Michael
Cheers Michael
12 Apr 2022
thats a huge effort, Michael M.
Am happy to help (and I have waders) if you do a repeat.
The third photo from MichaelB looks like the the plants are coming in down a drain ? (the propagules are adapted to dispersal by water, buoyant). So there must be an upstream source, and apparently vigorous.
Am happy to help (and I have waders) if you do a repeat.
The third photo from MichaelB looks like the the plants are coming in down a drain ? (the propagules are adapted to dispersal by water, buoyant). So there must be an upstream source, and apparently vigorous.
Location information
- Coordinates 149.052697-35.325316
- Altitude 554.1m
- Maps Coombs Ponds
- Places Molonglo, ACT
Sighting information
- 208 Abundance
- 22 Mar 2022 05:37 PM Recorded on
- MichaelBedingfield Recorded by
- 30cm to 1 metre Plant height
Collections
- Significant Weeds of National Significance Plants Other Fresh Water Plants MichaelBedingfield Canberra & Southern Tablelands NatureMapr Sagittaria platyphylla
Species information
- Sagittaria platyphylla Scientific name
- Sagittaria Common name
- Not Sensitive
- Exotic
- Major weed or pest
- Up to 622.71m Recorded at altitude
- External link More information
Record quality
Quality score
7 / 7
- Images or audio
- More than one media file
- Verified by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Description
- Additional attributes