Hydrocotyle algida

Mountain Pennywort at Rendezvous Creek, ACT

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Identification history

Hydrocotyle algida	5 Apr 2023	Tapirlord
Hydrocotyle algida	5 Apr 2023	Tapirlord
Hydrocotyle sp.	16 Jan 2023	JaneR
Hydrocotyle rivularis	7 Oct 2022	RAllen

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4 comments

RAllen wrote:

10 Oct 2022

added closeup, hairy on both upper and lower sides of leaves

JaneR wrote:

16 Jan 2023

if it is hairy on both surfaces, then it is not H. rivularis, which is glabrous.

According to VicFlora and PlantNet, the Hydrocotyle species with hair on both surfaces (out of the ones on CNM list) are algida, tripartita, laxiflora (all terrestrial, not aquatic) and maybe sometimes sibthorpioides. (amphibious)

Its a puzzle: the plants close up (main photo), in a terrestrial habitat, are hairy so are not rivularis. Plants in water may be aquatic, but could be terrestrial in a shallow run-on area after rain: its not easy to see if their leaf surfaces have hairs.

JaneR wrote:

16 Jan 2023

I have suggested Hydrocotyle sp to move the sighting out of Other Freshwater to Other Wildflowers and Herbs

JaneR wrote:

5 Apr 2023

H algida is very likely

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Location information

Maps Namadgi National Park
Places Rendezvous Creek, ACT

Sighting information

16 - 100 Abundance
3 Oct 2022 12:42 PM Recorded on
RAllen Recorded by

Additional information

Less than 10cm Plant height

Species information

Hydrocotyle algida Scientific name
Mountain Pennywort Common name
Not Sensitive
Local native
Non-Invasive
1040m to 1644.11m Recorded at altitude
Machine learning
In flower
External link More information

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