Salmon Hole

I recently visited the Salmon Hole in Burlington. Salmon Hole has a remarkably diverse assortment of plant species, including many non-native plant species and numerous invasive species.

Most spectacular invasive species. A massive invasion of lesser celandine (Ficaria verna) blanketed the steep slope from Riverside Avenue down to the Winooski River. This was the first time I had seen this species in Vermont. It was an impressive display.

Most spectacular native species. A mature population of red trillium (Trillium erectum) was also growing on the slope leading down to the river. Small groups of plants had variously-colored petals (not just typical red). There's a population in the southern Appalachians with pure white petals called Trillium erectum var. album, so the plants at Salmon Hole are technically called Trillium erectum var. erectum (according to the iNat taxonomy). The population here is very old, at least decades old, probably more.

Most surprising observation. I found a sunburst lichen (order Teloschistales) growing on a granite post along Riverside Avenue. There are similar posts used in multiple places along Riverside Ave…it would be interesting to see if this lichen is on other posts. I wonder what granite quarry the posts came from?

Life first. I observed nipplewort (Lapsana communis) for the first time at Salmon Hole. In the field, I had no idea what it was but the leaves had a distinctive shape so the plant's identity was easily guessed (and later confirmed by @tsn).

Posted on May 20, 2024 04:18 PM by trscavo trscavo

Observations

Photos / Sounds

What

Ill-scented Trillium (Trillium erectum var. erectum)

Observer

trscavo

Date

May 1, 2024 12:12 PM EDT

Description

On the RiverWalk to Salmon Hole (Burlington)

Robust population of plants with variously-colored petals

Photos / Sounds

What

Lesser Celandine (Ficaria verna)

Observer

trscavo

Date

May 1, 2024 11:07 AM EDT

Description

On the RiverWalk to Salmon Hole (Burlington)

Massive invasion

Photos / Sounds

What

Sunburst Lichens and Allies (Order Teloschistales)

Observer

trscavo

Date

May 1, 2024 12:41 PM EDT

Description

At the corner of Riverside Ave and Intervale Rd

Unexpected find

Photos / Sounds

What

Nipplewort (Lapsana communis)

Observer

trscavo

Date

May 1, 2024 11:01 AM EDT

Description

On the RiverWalk to Salmon Hole (Burlington)

Comments

Yes, the Salmon Hole area contains a confounding combination of beautiful native plant populations, aggressive invasive plants, natural beauty and heaps of trash!

Posted by tsn 25 days ago

@tsn yes, that says it all :-)

Posted by trscavo 25 days ago

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