Gleditsia triacanthos
Honey Locust, Thorny Locust at Watson Green Space
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| Gleditsia triacanthos | abread111 | 23 Feb 2024 | |
| Indigofera australis subsp. australis | CarbonAI | 23 Feb 2024 | |
| Gleditsia triacanthos | abread111 | 23 Feb 2024 |
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User's notes
long pods, pinnate leaves, in a planted bed, which contains a lot of weeds, blackberry (sprayed), Vinca...
9 comments
23 Feb 2024
@Tapirlord can you change the description for this species please, to say "pinnate or bipinnate leaves" as in PlantNet
24 Feb 2024
Three varieties of Gleditsia triacanthos are listed in ACT Infrastructure Guide 25, Plant Species for Urban Landscape Projects. These are supposedly thornless, but at least one can produce thorny suckers or seedlings.
24 Feb 2024
yes Barb, I saw 2 Gleditsia trees growing side by side on my way to the Gym the other day; both of same size, one with and one without pods ...
Those planted close to Hackett shopping center and the Fair about 10+years ago old, have (so far?) no pods. I still wonder whether there are sterile cultivars around...
Those planted close to Hackett shopping center and the Fair about 10+years ago old, have (so far?) no pods. I still wonder whether there are sterile cultivars around...
24 Feb 2024
@Mike
See https://caws.org.nz/PPQ8910/PPQ%2009-3%20pp101-105%20Csurhes.pdf a paper from 10 years ago which explains that the thornless varieties still produce a proportion of seedlings with thorns.
Now may be a good time to lobby TCCS to remove sleeper weeds like this one from MIS25. The Auditor has released a report with recommendation 1 being to review MIS25 with focus on climate ready species, but other issues of potential invasiveness could no doubt be included in the review if/when it is carried out.
See https://caws.org.nz/PPQ8910/PPQ%2009-3%20pp101-105%20Csurhes.pdf a paper from 10 years ago which explains that the thornless varieties still produce a proportion of seedlings with thorns.
Now may be a good time to lobby TCCS to remove sleeper weeds like this one from MIS25. The Auditor has released a report with recommendation 1 being to review MIS25 with focus on climate ready species, but other issues of potential invasiveness could no doubt be included in the review if/when it is carried out.
24 Feb 2024
Waltraud, there is at least one sterile variety, Moraine, actually a male clone. It is included in the list of varieties in https://keyserver.lucidcentral.org/weeds/data/media/Html/gleditsia_triacanthos.htm but the info that it is sterile comes from European sources when I did a Google search. It is not in MIS25 - too large for street planting and subject to branch break in wind.
25 Feb 2024
There is an Invasive Plants Working Group meeting coming up 4th April - I was told that I'm not allowed to attend because ParkCare groups have one rep - perhaps the forum is the right place to bring this topic up. Im lobbying already so many topics that I feel a bit overwhelmed I must say...
25 Feb 2024
Last year @MichaelMulvaney set up a list of sleeper weeds Acacia cognata with the aim of getting these removed from planting lists. I put some of my sightings in a collection that anyone can add to. I think there are many other plants that we know are becoming invasive. Gleditsia triacanthos is listed as High Priority in the ACT List of naturalised and doubtfully naturalised alien plants, and is a species in Field Maps.
25 Feb 2024
Thanks Waltraud - FOG has representatives at the weeds working group and has raised sleeper weeds previously and got some action - we will keep at it.
Location information
- Coordinates 149.156389-35.233445
- Altitude 614.0m
- Maps Watson Green Space
- Places Watson, ACT
Sighting information
- 1 Abundance
- 23 Feb 2024 05:19 PM Recorded on
- abread111 Recorded by
- 1 metre to 5 metres Plant height
Collections
Species information
- Gleditsia triacanthos Scientific name
- Honey Locust, Thorny Locust Common name
- Not Sensitive
- Exotic
- Major weed or pest
- Up to 729m Recorded at altitude
- External link More information
Seasonal activity
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Was the plant in flower?
JFMAMJJASOND
Record quality
Quality score
6 / 7
- Images or audio
- More than one media file
- Verified by an expert moderator
- GPS evidence of location
- Description
- Additional attributes
- Nearby sighting(s) of same species