Hydrocotyle laxiflora

Stinking Pennywort at Downer, ACT

Hydrocotyle laxiflora at Downer, ACT - 7 Dec 2020
Hydrocotyle laxiflora at Downer, ACT - 7 Dec 2020
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Identification history

Hydrocotyle laxiflora 16 Dec 2020 mcosgrove
Hydrocotyle laxiflora 8 Dec 2020 MichaelBedingfield
Hydrocotyle hirta 8 Dec 2020 JaneR

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8 comments

   8 Dec 2020
Hydrocotyle laxiflora is also hairy
JaneR wrote:
   8 Dec 2020
I suggested H. hirta because the achenes are so flattened
   8 Dec 2020
If you are correct, we might have to revise some of our sightings, eg:- Hydrocotyle laxiflora (Stinking Pennywort)
Mike wrote:
   8 Dec 2020
Can you go by flowering time? Plantnet says H. hirta flowers late summer, while H. laxiflora flowers Oct-Apr.
   8 Dec 2020
If that is correct Mike, then all our Hydrocotyle hirta sightings might be wrong, see: https://canberra.naturemapr.org/species/23022?ViewMode=Detail
JaneR wrote:
   8 Dec 2020
The FloraVic and PlantNet descriptions of H. laxiflora don't describe the fruits,. A description of H. laxiflora for Tasmania (where it is a threatened species) does mention that laxiflora has "slightly flattened" fruits and has a photograph. This Tas info-sheet states that laxiflora can be distinguished from other Hydrocotyle in Tas by its unpleasant smell; by flowers being mostly unisexual; and by flowers being stalked (no mention of flowering time as a distinguishing feature)

I didn't notice any smell; and I was down at ground level with the plant. But does it smell at all phenological stages ?

Hydrocotyle laxiflora - Natural Values Atlas
https://www.naturalvaluesatlas.tas.gov.au
waltraud wrote:
   8 Dec 2020
Mike, I'm not sure whether the flowering time is a good indicator; i noticed various species flowered at ununusual time following drought and then rain starting in Feb.
   16 Dec 2020
Thanks Meredith

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Location information

Sighting information

Additional information

  • Less than 10cm Plant height
  • True In flower

Species information

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