Coastal Manroot (Marah oregana) is in the gourd family family (Cucurbitaceae). Across the U.S., iNaturalist users have logged 1,817 research-grade flowering observations of it in our sample, peaking in May.
Nationally it blooms mainly from April to June, but timing varies a lot by state and elevation — see the table below.
When to photograph Coastal Manroot: observations by month (U.S.)
About Coastal Manroot
Marah oregonus, the Oregon manroot, coastal manroot or western wild-cucumber, is a common manroot of the northern west coast of the United States. It ranges from California north to Canada.From Wikipedia via iNaturalist — article, CC BY-SA.
Coastal Manroot by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Oregon | 931 | May | Apr–Jun |
| California | 523 | April | Mar–May |
| Washington | 363 | May | Apr–Jun |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (gourd family)
Photography tips
- Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
- Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
- Stay on trails — trampling meadows kills plants and ruins next year's display.
- Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.
FAQ
When is the best time to photograph Coastal Manroot?
Nationally, May has the most observations, with the main season from April to June.
Where is Coastal Manroot most often seen?
The most observations come from Oregon, California, Washington.