Cheesebush / Burrobrush

Field note · La Quinta Cove, September 28, 2026. The rounded, straw-colored shrub in these photographs is presented as a provisional identification of cheesebush / burrobrush (Ambrosia salsola). The wider frames show the surrounding wash and shrubland, where more than one plant species is visible. A close view of fresh leaves, flower heads, or fruit would make the identification firmer.

• Also called: Cheesebrush, burrobrush; the older scientific name Hymenoclea salsola also appears in field references.
• Plant type: Native, drought-deciduous desert shrub in the sunflower family (Asteraceae).
• Habitat: Sandy washes, alluvial fans, and rocky slopes in the southwestern deserts.

What to look for

Cheesebush often grows as a broad, rounded, sometimes open shrub of many slender twigs. Its leaves are narrow and can be sparse or absent through dry periods, leaving a pale, twiggy silhouette. Small flower heads are much less showy than the yellow daisies of brittlebush. Look for new leaves and flowering growth after favorable seasonal moisture rather than assuming a dry shrub is dead.

Why it fits this landscape

Desert washes and alluvial fans carry brief pulses of water and sediment. Burrobrush is among the shrubs associated with these well-drained places, and it can be common where soils have been disturbed. The repeated tan mounds in these La Quinta Cove views make a compelling field question, but the wide photographs alone do not establish that every mound is the same species.

Seasonal field notes

This shrub may leaf out after winter or summer rains and shed leaves during drought. Flowering is generally reported in spring, with local timing varying by rainfall and conditions. Returning to the same plants after rain would make a useful photographic comparison.

Five quick questions

Is cheesebush native to California?

Yes. Calflora lists Ambrosia salsola as native to California.

Are cheesebush and burrobrush the same plant?

They are common names used for Ambrosia salsola. “Cheesebrush” is another spelling found in references.

Why does it look dry in these photos?

Burrobrush is drought-deciduous and may lose its leaves during dry periods. Appearance alone cannot confirm the identity or health of an individual shrub.

How could I confirm the identification?

Photograph a leafy twig and the small flower heads or fruit close up, then compare them with a regional botanical key or verified specimens.

Are all the shrubs in the landscape photos burrobrush?

Not confirmed. Those frames document habitat and the abundance of similar-looking shrubs; they also include other plants.

Sources

• Calflora — Ambrosia salsola taxonomy and native status
• US Forest Service Fire Effects Information System — burrobrush ecology (under Hymenoclea salsola)