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Cheesebush

Ambrosia salsola · Sunflowers, Daisies, Asters, and Allies

Cheesebush (Ambrosia salsola)
(c) Jim Morefield, some rights reserved (CC BY) · CC BY · via iNaturalist

Cheesebush (Ambrosia salsola) is in the Sunflowers, Daisies, Asters, and Allies family (Asteraceae). Across the U.S., iNaturalist users have logged 955 research-grade flowering observations of it in our sample, peaking in March.

Nationally it blooms mainly from February to April, but timing varies a lot by state and elevation — see the table below.

When to photograph Cheesebush: observations by month (U.S.)

JanFebMarAprMayJunJulAugSepOctNovDec

About Cheesebush

Ambrosia salsola, commonly called cheesebush, winged ragweed, burrobush, white burrobrush, and desert pearl, is a foul-smelling, scraggly perennial shrub in the (sunflower family) common in deserts of the southwestern United States and northwestern Mexico.From Wikipedia via iNaturalist — article, CC BY-SA.

Cheesebush by state

StateObservationsPeak monthMain season
California836MarchFeb–Mar
Nevada67AprilMar–May
Arizona48MarchFeb–Apr

Main season = months with at least 30% of the state's peak-month count.

Related wildflowers (Sunflowers, Daisies, Asters, and Allies)

Photography tips

  • Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
  • Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
  • Stay on trails — trampling meadows kills plants and ruins next year's display.
  • Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.

FAQ

When is the best time to photograph Cheesebush?
Nationally, March has the most observations, with the main season from February to April.
Where is Cheesebush most often seen?
The most observations come from California, Nevada, Arizona.