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What
Swamp Smartweed (Persicaria hydropiperoides)Observer
seanblaneyDescription
Unusual look for P. hydropiperoides (suggestive of hybridization with another Persicaria perhaps). Perennial and rhizomatous in standing water. @danielatha - do you agree with P. hydropiperoides for this one? I don't see a better alternate ID.
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Long-leaved Speedwell (Veronica longifolia)Observer
seanblaneyDescription
Established in old garden. Not spreading extensively.
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Caucasian Stonecrop (Phedimus spurius)Observer
seanblaneyDescription
Well established and spreading among rocks where originally planted
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Wild Teasel (Dipsacus fullonum)Observer
seanblaneyDescription
More or less established in an area of former garden
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Sweet Pepperbush (Clethra alnifolia)Observer
seanblaneyDescription
One of several seedlings at this location. A bit back from the water.
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Sweet-Brier (Rosa rubiginosa)Observer
seanblaneyDescription
Thorns longer, slimmer and straighter than typical for this species, I think. I can't find another likely species that fits better.
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Shortbeak Sedge (Carex brevior)Observer
seanblaneyDescription
@michael_oldham @wdvanhem - Any thoughts on this one? In a disturbed stabilized old sand dune near the shore of Lake Ontario. I had intended to check it in August on a second visit but missed it. Maybe Carex brevior?
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Genus RhopobotaObserver
seanblaneyDescription
Rhopobota dietziana or Rhopobota finitimana leaf mines on Ilex verticillata. ID by @johnklymko
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Sideoats Grama (Bouteloua curtipendula)Observer
seanblaneyDescription
Dominant in alvar opening in Juniperus virginiana dominated savannah
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Proso Millet (Panicum miliaceum)Observer
seanblaneyDescription
One plant in railroad ballast well away from a birdseed source
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Annual Honesty (Lunaria annua)Observer
seanblaneyDescription
Fully wild occurrence, likely persistent from the lodge that was present nearby.
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Eastern Hemlock (Tsuga canadensis)Observer
seanblaneyDescription
Just a few remnant mature trees in small stream ravine