Western bunchberry is a dogwood that stays only a hand’s height tall. It spreads by creeping underground stems, so a single plant can carpet a patch of forest floor with whorls of leaves. What looks like one white flower is really a tight button of tiny flowers framed by four white, pink-tinged or purplish bracts. By late summer that button becomes a cluster of bright coral-red fruits.
The tiny flowers hide a clever trick. Bunchberry flowers carry a trigger that, when an insect brushes it, flings pollen upward in a small burst that dusts the visitor. The plant cannot fertilize itself, so those insect visits matter. Birds and small mammals eat the fruit and scatter the seeds, and because the underground stems usually survive light fires, patches often sprout again after a burn.
On Mt. Hood, look for it in shady, damp conifer forest, often on thick duff or old rotting logs. Forest Service researchers have treated it as a sign of cool, moist sites in the western hemlock zone of Mt. Hood National Forest. It is easiest to spot in early summer when the white bracts open, and again in late summer when the red fruit stands out against the dark green leaves.
How to identify it
A low plant 5 to 20 cm tall with a single whorl of oval, pointed leaves at the top of the stem, paler underneath. Four white to pinkish bracts, 1 to 2 cm long, surround a dense cluster of tiny greenish-white flowers that are often tipped with purple. Fruits are bright coral-red, berry-like and bunched together.
Look-alikes
Eastern bunchberry (Cornus canadensis) looks nearly the same, and older guides used that name for plants here. Researchers think western bunchberry arose long ago from a cross between eastern bunchberry and Lapland cornel, and the western and eastern plants still hybridize.
Habitat
Moist, cool conifer forests from low elevations to the subalpine zone, often on deep duff and rotting wood. In western Oregon it is most common at middle elevations, and it marks cool, moist sites in the western hemlock zone of Mt. Hood National Forest.
Sightings in the forest
1,001 research-grade sightings in Mt. Hood National Forest on iNaturalist, most recently on October 28, 2026. See them on iNaturalist →