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Other WildflowerSamolus valerandi  

Common Brookweed at Molonglo River Park

3 images

Samolus valerandi at Molonglo River Park - 14 Mar 2019
Samolus valerandi at Molonglo River Park - 14 Mar 2019
Samolus valerandi at Molonglo River Park - 14 Mar 2019

Identification history

Other Wildflower Samolus valerandi 15 Mar 2019 MichaelMulvaney
Other Wildflower Samolus valerandi 15 Mar 2019 Mike
Unidentified 15 Mar 2019 JaneR

Significant sighting

  15 Mar 2019

Last recorded in the ACT in 1994, this is a little known plant that we would like to know more where it occurs. Great that we have another rare species in Molonglo River Park

Author's notes

Very common on moist sandy soils at or near waters edge, downstream of Coppins Xing. Quite short, mostly 7-15 cm tall.

5 comments

   15 Mar 2019
The only thing I can think of that is at all similar to these plants is Erophila verna, the flowers of which have four petals, and the leaves are a lot narrower. I tried using my draft key to plants of SE NSW which has about 3,000 of the 4,000 relevant species in it and could not really get any joy. Cardamine hirsuta also looks vaguely like it but the flowers have four petals and the leaves are compound (composed of leaflets).
JaneR wrote:
   15 Mar 2019
That was my experience, too: I got nowhere with PlantNet key and nowhere with Flora Vic (on-line) key, yet the plant is quite distinctive.
Specimen has been taken for pressing.
I don't think it is Erophila verna (though I can't suggest better): the photo in Flora Vic (on Line) shows a rounded tips to sepals whereas these are quite acute: plus they are retained on the fruit after it is has dried and started shedding seed.
There are five petals, five sepals, and inside the flower are two lots of five anthers-like (different shapes:presumably one is infertile), off-set from each other. This really needed a microscope: it was challenging with a hand lens. It had a short fibrous root system, looks like an annual.
Mike wrote:
   15 Mar 2019
Low/short hairless perennial, often unbranched. Leaves oval in a basal rosette and alternate up the stems. Flowers white in a stalked spike, petals joined halfway. Fruit globular. The Wildflowers of Britain and Northern Europe, p.176
JaneR wrote:
   15 Mar 2019
Wait for the moderators, but it does look like a good match to me ! if so, then it is 'rare' in Victoria, and native in NSW, and not often collected.
JaneR wrote:
   15 Mar 2019
Wait for the moderators, but it does look like a good match to me !

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Nearby Sightings

Page 1 of 1 pages - image sightings only 42 0 7

Alternanthera denticulata (Lesser Joyweed) at Molonglo River Park - 14 Mar 2019 Ludwigia palustris (Marsh Purslane) at Molonglo River Park - 14 Mar 2019 Cyperus eragrostis (Umbrella Sedge) at Molonglo River Park - 14 Mar 2019 Myriophyllum verrucosum (Red water-milfoil) at Molonglo River Park - 14 Mar 2019 Cryptandra speciosa subsp. speciosa at Molonglo River Park - 11 Jun 2018 Intellagama lesueurii (Eastern Water Dragon) at Molonglo River Park - 11 Feb 2018 Pseudagrion aureofrons (Gold-fronted Riverdamsel) at Molonglo River Park - 11 Feb 2018
Alternanthera denticulata (Lesser Joyweed) at Molonglo River Park - 14 Mar 2019
Ludwigia palustris (Marsh Purslane) at Molonglo River Park - 14 Mar 2019
Cyperus eragrostis (Umbrella Sedge) at Molonglo River Park - 14 Mar 2019
Myriophyllum verrucosum (Red water-milfoil) at Molonglo River Park - 14 Mar 2019
Cryptandra speciosa subsp. speciosa at Molonglo River Park - 11 Jun 2018
Intellagama lesueurii (Eastern Water Dragon) at Molonglo River Park - 11 Feb 2018
Pseudagrion aureofrons (Gold-fronted Riverdamsel) at Molonglo River Park - 11 Feb 2018

Page 1 

Location

Location information

Species information

  • Not Sensitive
  • Rare or uncommon Native
  • Non-Invasive

Sighting information

  • 101 - 1,000 Abundance
  • 14 Mar 2019 3:50 PM Recorded on
  • JaneR Recorded by
  • Website Reported via
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