Common Spleenwort at Oaks Estate, ACT
Identification history
| Asplenium trichomanes | 3 Oct 2015 | dcnicholls | ||
| Asplenium flabellifolium | 3 Oct 2015 | MichaelMulvaney | ||
| Unidentified | 26 Sep 2015 | FranM |
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Significant sighting
MichaelMulvaney noted:
6 Oct 2015
Thanks Fran - This is only the 12th location of this fern recorded in the ACT, and most of the records are from before 1990 in Namadgi
6 comments
FranM
wrote:
3 Oct 2015
Michael, This fern is more rigid than Asplenium flabellifolium which I did see elsewhere in the Gorge. Also, the pinnae are not quite the right shape that.
dcnicholls
wrote:
3 Oct 2015
No, not A. flabellifolium, definitely A. trichomanes. Much rarer. I have only found this in the past at the Cotter Cave (growing on the limestone) and on the banks of the Cotter River just below Bendora Dam. Excellent find!
dcnicholls
wrote:
3 Oct 2015
Max Gray once told me that A. trichomanes preferred alkaline environments, hence the Cotter Cave limestone find. But that's not universally true. I wonder what the rock is in the photo.
AaronClausen
wrote:
4 Oct 2015
Wonderful sighting Fran, I have wanted to see this species in person for a long time. Very cool!
FranM
wrote:
7 Oct 2015
Re the rock, I consulted Brad Pillans who advised that rocks in the area are "interbedded sandstone, siltstone, shale and minor black shale, chert and impure calcareous sandstone.The critical part of the description is 'impure calcareous sandstone' - calcareous means it contains calcium carbonate, which is what limestone is made of. Conclusion - the rocks where the fern occurs could well be calcareous...".
Location information
- Maps Molonglo Gorge
- Places Oaks Estate, ACT
Sighting information
- 1 - 3 Abundance
- 23 Sep 2015 12:31 PM Recorded on
- FranM Recorded by
Species information
- Asplenium trichomanes Scientific name
- Common Spleenwort Common name
- Sensitive
- Rare or uncommon native
- Non-Invasive
- Machine learning
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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
