Those who follow such things know that I’ve been involved in the preservation and enhancement of Redmond’s Dry Canyon, joining with others to form the Friends of North Dry Canyon Natural Area as an advocacy group, working to educate the public about its qualities and fragility, while also providing ‘boots on the ground’ with clean up projects and the control of threatening Invasive plants. Most recently we’ve been supporting other groups and participating with a guided naturalist walk, a bat walk and a recent Botany and Birds, walk with the High Desert Chapter of the Oregon Native Plant Society and Queer as Flock, a bird watcher’s group. We’ve been advocating for better signage, a trails management plan and for increased efforts to control the illegal use of electric and gas powered motorcycles in the Canyon. Additionally we have be doing the Juniper survey work for the City, to help create a plant data base linked with the City’s GIS program to aid them/us in the development of an effective management plan for Dry Canyon. We’ve only been recently notified, along with the rest of the public, that the City has a new Dry Canyon Firewise Management Plan (a PDF is linked below), which we were assured included participation by foresters, local natural resource and conservation groups…yet, somehow, they’ve produced a one dimensional plan with the singular priority of eliminating the chances of a catastrophic fire, while ignoring virtually all other priorities!!!! Continue reading
Category Archives: Plants in the Dry Canyon Natural Area
Holodiscus microphyllus, Rock Spiarea in Dry Canyon
Another less common slope dweller is Holodiscus microphyllus, or Bush Ocean Spray, a deceiving name, or Rock Spiarea, which is also somewhat confusing. Confusing because Spiarea is the genus name for an entirely different genera of shrubs. So I call it simply Holodiscus. ( Botanical names can be confounding to the uninitiated. I’m not a big user of mnemonics, but I still remember first learning this plant’s close relative, Holodiscus bicolor, and the phrase immediately came to mind, ‘Holy Discus, Batman!” I know, silly, but I doubt I will ever forget that plant.)
- The three darker shrubs, here are Holodiscus. There’s a Wax Current at the bottom of the pic still in flower just above it in light gray is some gray rabbit brush. more of each or scattered up slope. The tumbled boulders are part of the fragmenting canyon rim, originally deposited as a part of the Deschutes Formation around 5 million years ago, about 4.5 million years before the Deschutes River was redirected to its course here where it carved the canyon over a period of around 300,000 years.
- The leaves are very small and relatively thick, both of these traits are common among plants native to arid country, while many desert plants also retain their leaves, conserving nutrients and water. Like all deciduous plants Holodiscus must spend a lot of energy, and material reproducing leaves, before they can begin photosynthesis and replenish their starch/energy stores. Evergreens/evergrays are always ready to grow and take advantage of moisture and unseasonably warm temperatures at any time of the year.
- The Oregon Flora project has been compiling a descriptive list of all of the native plants in Oregon. Each red dot represents where a sample was collected from by botanists. Many of these samples are preserved in herbaria for research purposes. As with all such maps, these dots don’t mean that the plant will not be found someplace else. Botanists have not examined every square inch of the state.
- This will all pop open as little 5 petalled, ‘rose’, flowers.
- Holodiscus on the eastside slope early July, their buds expanding.
This typically occurs on the eastern flank of the Cascades and in the mountains of SE Oregon. The common name, ‘rock’, suggests its preferred sites. I’ve not seen one in Dry Canyon bottomland. It seems most common below the east rim north of the Maple Bridge. Continue reading
That Gray Stuff? It’s All Sagebrush…Nope
Part of the Dry Canyon plant series
Everybody knows Juniper and I suspect that a lot of people who think they know Sagebrush, that ubiquitous gray shrub you see everywhere, may be confusing it with other plants, blurring all ‘gray’ shrubs into one. Now this may not seem to be a big deal, but if you are trying to manage a landscape with these in them or trying to create a landscape which reflects the local plant communities, then it becomes much more important that you know what you have so that you can evaluate your landscape’s condition and decide upon what you may need to do, or stop doing, to meet your goals. Continue reading
The Cut Leaf Thelypody in Dry Canyon
[Plants of the Dry Canyon Natural Area – This will be the start of a new series focused on the plants of Redmond’s Dry Canyon. I’m creating them to be posted for ‘local’ consumption on the Friends of North Dry Canyon Natural Area. It’s a City Park including about 166 acres at the north end of Dry Canyon Park which the City has identified as a Natural Preserve. The group works as an advocate with the City, on public education and helping with on the ground work projects. I’ll identify each such post here.]
- This years new growth emerging with last year’s inflorescence dried and nearby
- Flowering in early stages. Later the terminal continues to extend and the seed pods develop below.
- An inflorescence displaying its almost ‘orchid’ like flowers
- A map showing locations from which formal collections were taken as part of the Oregon Flora project










