Persoonia linearis

Narrow-leaved Geebung at Oakdale, NSW

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Identification history

	Persoonia linearis	14 Feb 2023	ESP
	Persoonia linearis	14 Feb 2023	natureguy

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I believe this is the only item on wollondillys most wanted a Persoonia bargoensis or a Bargo Geebung so question are there different varieties as I have found 2 what appear to be different species but am unsure? one has a broader leaf than the other,

13 comments

bufferzone wrote:

12 Feb 2023

is this the plant listed as wollondilly's most wanted?

natureguy wrote:

12 Feb 2023

It is quite a range-restricted species, I think your ID could be right, but not super confident eliminating similar P. linearis

bufferzone wrote:

12 Feb 2023

Thanks Natureguy we definitely think there are 2 different species as plants have the same flowers But the difference (I have not placed both plants on this post) any way the difference is the Shape and size of the Leaves, being a newby to this type of thing I am hoping some one can assist with this and cant wait to see if it is the wollondillys most wanted as they are Prolific, we just thought they were native flowering plants and did not realise the significance, we are guessing the rarity is due to the recent bush fires but would like more information regarding that, Thanks for your Comment its apreciated

bufferzone wrote:

12 Feb 2023

natureguy is there any way of differentiating the plant to check the difference between P. linearis and the Geebung? the picture I find on Google of the P. linearis seems to have larger yellow pods?

bufferzone wrote:

12 Feb 2023

Okay I am positive we have both species one has Hair on its young limbs and the other appears more smooth the Persoonia bargoensis or a Bargo Geebung is the smopther one with less hairs, here are the 2 links https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Persoonia~linearis&fbclid=IwAR3JtQGwB1gFLoiNRiEIYtiAS84dHhR0dZvVw5ef3Kj8YgkaEjIeYJgH2zs
and https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=gn&name=Persoonia
the Australian native Plant society states to contact the Royal Botanic Gardens for possible confirmation? does that mean cut off a limb and take it to them for Identification?

ESP wrote:

13 Feb 2023

These pics are just P. linearis, which very oddly isn't in the dropdown list of species for me to suggest (I'll contact Council to get this fixed). Hybrids are reasonably common, and one of the odder ones is P. linearis (very narrow and relatively dark green leaves) and P. levis (broadest and lime green leaves) - but you'd generally know it when you find it because its parentage is pretty obvious and they're usually both present nearby. P. bargoensis is one of the most range-restricted of east coast Persoonias and that range has contracted through land-clearing, fragmentation and other threats. But if you want to track it down, there are public records of it and public text about where it has been found. There are sites on readily accessible public land in Wollondilly Shire, or at least there were in recent history. Like P. hirsuta, this species can quickly disappear from a site if there's a disease outbreak or conditions become unsuitable - the very wet conditions haven't helped either of them, in general.

bufferzone wrote:

13 Feb 2023

Thanks #ESP The Question I have is we have many many here so how do we tell what the Bargoenisis one actually looks like ? Thanks

ESP wrote:

13 Feb 2023

Like Adam Bandt said: Google it mate! There's plenty of info on bargoensis on the DPE website plus PlantNet. It's also in Fairley's 'Seldom Seen' book on rare flora. It's closest to P. nutans from western Sydney and used to be synonymous with it, then a subspecies of it, but later got species rank. I think there was genetic work that support it as a distinct species. Have a look for Paul Rymer's work on it, and I think there's a public PhD thesis available on it and related things from Wollongong Uni.

bufferzone wrote:

13 Feb 2023

thanks ESP Im so Confused may need to get an exspert or at least some one who really can tell which is which as stated we have may different but same looking ones its like a sea of yellow that we never saw till I took one picture hahahahahaha

natureguy wrote:

14 Feb 2023

Thanks, I thought it might be linearis too. It is under "Other trees", for some reason the dropdown lists have some things in odd places.

ESP wrote:

14 Feb 2023

I've asked Wingecarribee's admin person for this site to put P. linearis in the Shrubs list. Might take a while given her other responsibilities. Ideally, the categories would match those used in BioNet and the BAM, and it is better to have a species in multiple structure classes because they can often have different forms depending on age or the plant community.

ESP wrote:

14 Feb 2023

The odds of finding rare and threatened species is generally low because they're rare, and many are often very range-restricted. But sometimes you'll be surrounded by rare stuff because you're in just the right habitat. The Lucas Heights Soil Landscape is the richest for rare plants in Greater Sydney, and there's a fair bit of it with native veg on it in Wollondilly Shire. There are other hotspots where you can get as many as 6 rare or threatened plant species (and sometimes at least one threatened fauna species) within a few m2. But these are rare situations. With Geebungs, you can get a few species at the one site, and in a post-fire situation where they've recovered enough to all be flowering together, you might get lots of hybrids and not be able to tell what's what. There's a site in Alpine like that and it was a spectacular mix of things - threatened species and rare species at range limits, plus common species, and all interbreeding in sometimes bizarre combinations. What is more common are simple hybrids, mostly between common species, and linearis x levis is probably the most common of these.

bufferzone wrote:

14 Feb 2023

Thank you every one

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Location information

Maps Wollondilly Local Government Area
Places Oakdale, NSW

Sighting information

25 Abundance
12 Feb 2023 01:57 PM Recorded on
bufferzone Recorded by

Additional information

5-10mm Flower dimension
1 metre to 5 metres Plant height
True In flower

Species information

Persoonia linearis Scientific name
Narrow-leaved Geebung Common name
Not Sensitive
Local native
Non-Invasive
Up to 823.55m 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