Hydrocotyle laxiflora

Stinking Pennywort at Downer, ACT

Request use of media

Identification history

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

Identify this sighting

Please Login or Register to identify this sighting.

8 comments

michaelb wrote:

8 Dec 2020

Hydrocotyle laxiflora is also hairy

JaneR wrote:

8 Dec 2020

I suggested H. hirta because the achenes are so flattened

michaelb wrote:

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.

michaelb wrote:

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.

michaelb wrote:

16 Dec 2020

Thanks Meredith

Please Login or Register to comment.