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Lots of very iffy bracting on this plant so I think a hybrid, in the N-side hedge along this road. Main parents around were C. silvatica and C. sepium with some C. soldanella & C. arvensis further off.

Varileaf phacelia in an upper elevation montane dry meadow and forest edge at the southwest end of the Spanish Peaks near Jack Creek Road, Madison Range, Madison County, Montana. Erect (not decumbent) flowering stems and generally whitish corollas (rather than bluish purple) distinguish this species from similar perennial Phacelia species.

supposedly you can tell Hedge and Large vegetatively by the shape between the leaf lobes - rounder in Large, V shaped in Hedge. I don't believe it, but expect more leaf pictures with flowers... probably not the best start to go with a maybe-hybrid, then.

closer to C. silvatica at least, but faintly pink-striped on the outside (and the inside, I think, or that might just be the outside shining through) suggests some C. sepium too

New, potentially very invasive grass species with last year's inflorescence. This is a noxious weed in Idaho and spreading rapidly in the foothills of Boise, where it places landscapes in high fire risk.

This is believed to be the first North American record for this taxon. The second photo shows a comparison between P. x intermedia (L) and P. vulgaris var. vulgaris (R). I would especially appreciate hearing thoughts from European colleagues familiar with P. x intermedia.

This is part of a series of observations of the same specimen:

• August 11: (this observation)
• August 21: https://www.inaturalist.org/observations/192369728
• August 31: https://www.inaturalist.org/observations/193731228

First Margined White I’ve ever seen in Seattle! Previous Seattle records were mentioned in a 1946 publication, but none for Seattle since then. And it visited the butterfly meadow I’ve been working on to create better butterfly habitat in for some years now! At first, I assumed it was going to be a cabbage white, which I actually don’t see very often in this opening in the woods, but with darkened veins and no dark wing tips, I think I indeed got a margined white here! I already have a lot of our native Tower Mustard - Turritis glabra (formerly Arabis glabra) growing here if it wants to come back to lay eggs.

The Tower Mustard is a species that I had found on a list of Seattle's lost native species 25 years ago, but then found one colony of the plant still in Seattle, and I established 2 new colonies here with seed from that first colony I found here, including this one in Lincoln Park.

Oriental Bittersweet naturalizing on private property north of the Sandy River, Rhododendron, OR.

Specimens were taken for submission to the Oregon State University herbarium. Specimens were confirmed as Celastrus orbiculatus by Aaron Liston and James Mickley.

This infestation had been actively managed by the property owner using manual methods for several years.

The patch was sprayed in in October 2023 using 0.5% imazapyr,