Small-flower Evening Primrose at Tharwa, ACT
Identification history
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Significant sighting
MichaelMulvaney noted:
1 Jun 2017
This is a new weed species for the ACT region - we are near its southern distribution limit in Australia. It is a reasonably widespread weed in south Africa and is now know from three locations along the Murrumbidgee
User's notes
Along the 4WD track on the western side of the Murrumbidgee River, north of Tharwa.
6 comments
Mike
wrote:
2 Jun 2017
Is it worth trying to get rid of this before it spreads too far? Oenothera stricta is more common and very widespread (the two hybridise) and Oenothera lindheimeri is a garden escape we are trying to stop.
MichaelMulvaney
wrote:
2 Jun 2017
It is worth trying - but given its generally northern coastal NSW distribution I was wondering how frost sensitive it may be. I will be tackling the wormwood next week and am away till 20 June. If it is still thriving after that then I think we should target it for removal - but I suspect it may all ready be widespread along the Murrumbidgee.
MichaelBedingfield
wrote:
3 Jun 2017
The plants are not thriving at the moment, and are in a somewhat degraded state, sort of frazzled and weather worn. The plant in this sighting was from April, and it was one of the best I could find.
MichaelBedingfield
wrote:
5 Jun 2017
In the interests of science I have added a photo of a typical specimen of the plant, in its current condition, in early winter.
Mike
wrote:
5 Jun 2017
Its relative, Oenothera stricta subsp. stricta is looking much healthier despite a few frosts.
Location information
- Coordinates 149.066368-35.501810
- Altitude 581.0m
- Maps Point Hut to Tharwa
- Places Tharwa, ACT
Sighting information
- 16 - 100 Abundance
- 12 Apr 2017 08:28 PM Recorded on
- MichaelBedingfield Recorded by
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Collections
Significant sightings Plants Other Wildflowers & Herbs
Additional information
- 10cm to 30cm Plant height
Species information
- Oenothera indecora subsp. bonariensis Scientific name
- Small-flower Evening Primrose Common name
- Not Sensitive
- Exotic
- Medium weed or pest
- Up to 1309.79m Recorded at altitude
- Machine learning
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In flower
- External link More information
Record quality
- 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
