jhorthos's Journal
I checked a project download today more carefully and either the download bug is fixed or it is inconsistent, because this round the obscured coordinates for project participants are definitely available to me.
Thanks so much participants! If you know of other interested observers get them to join!
Already considerable improvement thanks to member data!
https://docs.google.com/spreadsheets/d/1bXE0qFrbRfWxGI9lbkYH9y8ZJhuCBQZw04rt3mLBc64/edit?usp=sharing
I have put a lot of work into improving maps of exposed ultramafic (serpentine) rocks in California, Oregon, and Washington. Anyone who knows a local area is invited to help (you can just advise me - I will handle all the map generation).
One example is shown at https://docs.google.com/presentation/d/1vPJH04YXaf67UrBTdP6CD0AABA4Yw0mxWLhg96RFiI4/edit?usp=sharing
Buffalo Gap Trail just north of Badlands Nat Park
Black Hills/Wind Cave: Centennial Trail, Highway 87 to Highland Creek Trailhead, looks like on Nat Park land, but also runs north on Centennial Trail: Custer State Park to French Creek Horse Camp
Lava east of Craters of Moon: Twentymile Lava Trail
Bighorns: Tongue River Canyon
John Day - unnamed track head -119.0376772718113, 44.44240819736461 (serpentine, Route 395 to county road 32 to Blue Heron Road)
John Day - unnamed track head -119.0074082595789, 44.42496561665239 (serpentine, Route 26 to Damon Road to unnamed dirt road)
John Day - backroads just west of Route 395 as it goes south of John Day.
Copper Creek Trail (unofficial?) near Unity OR, just off Route 26.
Myriopteris intertexta - Allison Canyon near Macks Canyon Recreation Area on Deschutes River, "trail" head at -120.8756790471306, 45.38839707958857
Most project members will probably know all this stuff, but for those who don't or who stumble on the project, here is a guide to recognizing serpentine on hikes.
https://docs.google.com/presentation/d/1Ct7veutb0Gj-_nAQ8wRfhbKynVKXHtR5o4ouZC1q0gQ/edit?usp=sharing
(alphabetical by formal name)
https://www.inaturalist.org/journal/jhorthos/69499-aspidotis-densa-ecology
https://www.inaturalist.org/posts/68433-chaenactis-thompsonii-non-techinical
https://www.inaturalist.org/posts/68666-distinguishing-cryptogramma-ferns
https://www.inaturalist.org/journal/jhorthos/75817-epilobium-on-serpentine
https://www.inaturalist.org/posts/68339-eriogonum-pyrolifolium-non-technical
https://www.inaturalist.org/posts/68334-ivesia-tweedyi-non-technical
https://www.inaturalist.org/posts/68301-lomatium-cuspidatum-non-technical
https://www.inaturalist.org/posts/68958-lomatium-cuspidatum-ecology-notes
https://www.inaturalist.org/posts/68983-myriopteris-gracillima-ecology
https://www.inaturalist.org/posts/68435-oreocarya-thompsonii-non-technical
https://www.inaturalist.org/journal/jhorthos/70007-pentagramma-triangularis-ecology
https://www.inaturalist.org/journal/jhorthos/75767-poa-curtifolia
https://www.inaturalist.org/posts/68665-distinguishing-polypody-ferns
https://www.inaturalist.org/posts/68686-distinguishing-polystichum-ferns
https://www.inaturalist.org/journal/jhorthos/69232-sabulina-nutallii-vs-rubella
Short angular grass with thick leaves, endemic to Wenatchee Serpentine. Widespread and common on relatively barren serpentine in higher parts of Wenatchee mountains, including near Lake Ann, Iron Peak, Longs Pass, upper Stafford Creek, and probably many other locations since I have found it any time there is suitable habitat. Roughly coextensive with Lomatium cuspidatum.
Easily recognized based on location on serpentine, very low growth, firm thick angular leaves, and usually bluish color. The only other roughly similar grass I have seen in the area is an Elmyrus species https://www.inaturalist.org/observations/174711405, with many distinguishing features, most obviously much thinner flexible ("grasslike") leaves.
Collar prominent, yellow to pale. Blade at 70-90 deg angle to stem. Blade folded, maturing to flattened at base, with pale edges and prominent pale veins, firm and thick, 1.5-3 mm wide, terminating in blunt closed keel. Ligule (sheath around stem just above base of leaf) membranous and prominent. Auricle (stem clasping extension of collar) absent.
exceedingly technical description:
http://dev.semanticfna.org/Poa_curtifolia
Probably present in various other observations:
https://www.inaturalist.org/observations/133636480
https://www.inaturalist.org/observations/60189445
https://www.inaturalist.org/observations/60189253
https://www.inaturalist.org/observations/60186494 (maybe)
https://www.inaturalist.org/observations/59987088 (lower right, maybe)
https://www.inaturalist.org/observations/59986642
https://www.inaturalist.org/observations/59985957
Mostly from drew_meyer:
E. rigidum vs. E. siskiyouense:
E. siskiyouense has smaller, more lanceolate leaves, with the broadest part of the leaf closer to the base and sessile (no petiole, tending to clasp stem with leaf base). E. rigidum has larger, more ovate leaves with the broadest part right in the middle and short but clear petioles.
There are other differences too, such as the leaf color/texture (E. siskiyouense is generally less glaucous). It also seems like E. siskiyouense has a distribution more to the southeast while E. rigidum is associated with the Josephine Ophiolite (coastal most part of Klamath).
E. rigidum has darker rose to red calyx. E. rigidum is larger in all respects but hard to tell unless photo has ruler.
Similar Epilobium obcordatum has sessile leaves and a wider range and is not found on serpentine (0/266 iNat observations).
