Sulphur Buckwheat is a low-growing wildflower of western mountain and desert habitats, producing bright yellow flower clusters in summer that age to rust-red. It is one of the most important butterfly plants in western North America, serving as a larval host for dozens of hairstreak and blue butterfly species. The genus Eriogonum contains over 250 species.
Best time to see a Sulphur Buckwheat
The best time to see a Sulphur Buckwheat is June–July, when about 68% of U.S. sightings happen, based on 17,476 research-grade iNaturalist observations.
Not certain it is a Sulphur Buckwheat? What plant is this? walks through what to check first and the lookalikes that catch people out.
Recent Sulphur Buckwheat sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
Spotted a Sulphur Buckwheat?
Point Huck at any plant, bird, or animal and know for sure - plus a live map of where it is being spotted near you.