Spiny Gumweed Blooms on Mount Diablo's Slopes
Saturday, May 30th, 2026 at 2:51:23 PM · 2026/Mt Diablo Camping - Juniper Canyon
This close-up photograph captures a bright yellow composite wildflower, most likely Grindelia (gumweed), in full bloom amid the dry chaparral scrub of Juniper Canyon on Mount Diablo, California. The flower head features characteristic spiny, recurved phyllaries (bracts) beneath the ray florets, a hallmark of the Grindelia genus. The toothed, clasping leaves visible in the lower foreground are consistent with this identification. A second flower is partially visible at the left edge of the frame, and the background reveals a tangle of dry brown stems and blue-green foliage typical of late-season California chaparral. The image has a natural, documentary feel with warm afternoon light illuminating the central bloom against a softly blurred background.
Chronologically Adjacent
