100+ plants here, probably many more than I think. Growing on a dry south-facing slope and on basalt outcrops. Much of this population sits directly above a very large cliff. The entire population encompasses approximately 1/4 acre.
I found this population on Google Earth by noting the unique color the shrubs create on the hillside.
@eralverson the habitat and flora of this site is remarkably similar to the Jasper rocks. In fact, this is by far the most similar site that I have seen anywhere in the Willamette Basin. Given all the similarities, I wonder about a potential Pellaea andromedifolia population here. If it isn't here (which I expect is likely the case), then it could be an excellent spot to experiment with introducing a new population. I would have to survey the area below the cliff here more thoroughly to be sure that it does not already occur at this site, though.
Flowers 1-2 per raceme, small leaflets (up to 2 cm) & apiculate (tipped with a short abrupt point). Longer lower calyx teeth (longer than tube).
~2600 ft elev. in understory of noble fir, Douglas-fir and hemlock forest. Open understory, very abundant along the roadside. Some plants collected as part of the OSU 2023 Botanical foray. Tillamook county.
Wild seedlings of this plant are common "weeds" all over my white oak woodland garden. Leaves are wooly on both sides and gently lobed at this stage, prickles are soft and white on the stems / miniscule on the underside leaf vein. R. armeniacus, ursinus and idaeus are all nearby, but it doesn't resemble any of them in detail. Could be thimbleberry (EDIT: oops I meant salmonberry), but then I'm mystified as to how there is so much of it in the seed bank when I don't see it anywhere around!!! @brucen?