Juncus phaeanthus
Dark-flower Rush at Tinderry, NSW
Identify this sighting
| Juncus phaeanthus | Tapirlord | 28 Mar 2023 | |
| Juncus phaeanthus | Tapirlord | 28 Jan 2023 | |
| Juncus (genus) | danswell | 28 Jan 2023 |
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5 comments
29 Jan 2023
hi Danswell,
What makes a Juncus identifiable can be some distinctive feature (like shape of buds - see your sighting of J prismatocrpus, arrangement of flowers, whether culm is noded, the plant has leaves), a whole lot of features that don't lend themselves to field photography. Familiarity with a species certainly plays a part (at least, for me) in ID from photographs. In this case, I don't know Juncus pheanthus (suggested by Tapirlord) so struggle to confirm without more info.
If you can, then its helpful if the photo shows close up of fruiting, capsules, and should aim to show whether tepals are similar in length, shorter than, or longer than, capsule (eyeball some of the Juncus sightings on CNM to get a feel for this). A comment on whether the pith is continuous or septate can also be helpful (slit the culm with knife or fingernail).
What makes a Juncus identifiable can be some distinctive feature (like shape of buds - see your sighting of J prismatocrpus, arrangement of flowers, whether culm is noded, the plant has leaves), a whole lot of features that don't lend themselves to field photography. Familiarity with a species certainly plays a part (at least, for me) in ID from photographs. In this case, I don't know Juncus pheanthus (suggested by Tapirlord) so struggle to confirm without more info.
If you can, then its helpful if the photo shows close up of fruiting, capsules, and should aim to show whether tepals are similar in length, shorter than, or longer than, capsule (eyeball some of the Juncus sightings on CNM to get a feel for this). A comment on whether the pith is continuous or septate can also be helpful (slit the culm with knife or fingernail).
30 Jan 2023
I've photographed J.phaeanthus a few times, always in montane or subalpine bogs. It is quite a tall rush with forest green culms and distinctively dark coloured globular infloresence. The infloresence of this specimen is still emerging so the suggestion is tentative. Absolutely agree with Jane that familiarly with the subject matter is very useful, Juncus are difficult to ID at the best of times. If you are going to take additional photographs it is also worth checking the base of the plant to document the colour of the basal sheaths.
For reference Compare with
Juncus phaeanthus (Dark-flower Rush)
For reference Compare with
Juncus phaeanthus (Dark-flower Rush)
Location information
- Coordinates 149.318161-35.773711
- Altitude 1315.8m
- Maps Mt Holland
- Places Tinderry, NSW
Sighting information
- 101 - 1,000 Abundance
- 27 Jan 2023 03:19 PM Recorded on
- danswell Recorded by
Collections
- danswell Canberra & Southern Tablelands NatureMapr Rushes, Sedges & Mat Rushes Plants Juncus phaeanthus
Species information
- Juncus phaeanthus Scientific name
- Dark-flower Rush Common name
- Not Sensitive
- Local native
- Non-invasive or negligible
- Up to 1649.54m Recorded at altitude
- External link More information
Record quality
Quality score
3 / 7
- 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