Ageratum houstonianum
Blue Billy Goat Weed at Nambucca Heads, NSW
Identify this sighting
| Ageratum houstonianum | Tapirlord | 18 Jun 2022 | |
| Ageratum sp. | Topknot | 30 May 2022 | |
| Unverified | trevorpreston | 29 May 2022 |
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4 comments
1 Jun 2022
This weed was very common on North Coast roadsides.
Thanks for your ID work on North Coast Nature Map, hopefully more moderators will get on board for this area soon.
Thanks for your ID work on North Coast Nature Map, hopefully more moderators will get on board for this area soon.
9 Jun 2022
I do reckon it's Ageratum (probably houstonianum?) - Ageratina has white flowers, whereas the flowers in the photo look mauve/blue to me
10 Jun 2022
Having had another good look I think you are right, but for me it is leaves that are the decider, the flower colour can be variable amongst garden cultivars. Ageratum has densely hairy leaves and stems, will in Ageratina the leaves are almost glabrous.
Location information
- Coordinates 153.012190-30.645734
- Altitude 77.0m
- Places Nambucca Heads, NSW
Sighting information
- 16 - 100 Abundance
- 28 May 2022 02:53 PM Recorded on
- trevorpreston Recorded by
- 30cm to 1 metre Plant height
- Yes In flower
Collections
Species information
- Ageratum houstonianum Scientific name
- Blue Billy Goat Weed Common name
- Not Sensitive
- Exotic
- Minor weed or pest
- Up to 206m Recorded at altitude
Seasonal activity
-
Was the plant in flower?
JFMAMJJASOND
Record quality
Quality score
5 / 7
- Images or audio
- More than one media file
- Verified by an expert moderator
- GPS evidence of location
- Additional attributes
- Nearby sighting(s) of same species
- Description