Rubber rabbitbrush

Rubber rabbitbrush often becomes conspicuous just as many other plants are fading. Rounded clusters of small yellow flower heads cover the ends of its upright branches. The narrow leaves and young stems can look gray or whitish because of their fine hairs; the stems are flexible rather than rigid and brittle. Several rabbitbrush species share a yellow-flowered appearance, so flower color alone is insufficient. The felted stems and narrow leaves add useful clues when they can be examined without pulling the plant apart.

This shrub grows in sunny, open settings across a wide range of Utah landscapes, including valleys, foothills, and dry uplands. It tolerates varied soils and is common on disturbed ground. That association does not make it a non-native weed: rubber rabbitbrush is part of the region's native vegetation. Its covering of fine hairs is one adaptation that reduces water loss. Flowering dates are unusually variable across its broad range, so a fixed statewide calendar would be misleading; late summer and autumn are useful general expectations, with local exceptions.

The flowers provide resources for bees and other pollinators after many spring-blooming plants have finished. Some flower and seed structures remain on the branches well beyond bloom, keeping the shrub recognizable into the colder season. Watch visiting insects from a public path and leave them room to feed. Roadside plants are especially visible, but stopping safely and avoiding traffic take priority over a close-up view.

Narrow leaves, felted flexible stems, and terminal yellow flower clusters; other rabbitbrush species require closer comparison.

Watch insects without handling flowers; never step into traffic or onto private ground for access.