ID is uncertain 
Franseria dumosa A. Gray
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Ambrosia dumosa (A. Gray) Payne Burro bush, burro-weed, white bursage
Burro bush is common in the American southwest and northwestern Mexico. Its roots grow away from those of similar species, to reduce contention for water. Creosote bush, common in the same habitats, secretes a chemical that inhibits the growth of burro bush. Identification: Burro bush reaches up to 3′ (91 cm) in height. It has many fine branches, almost resembling a porcupine. The leaves are very irregular in shape, and pale green. They remind me of lichen. Flowers are small and yellow. The seeds, which may be yellow, purple, or brown, are round in shape and sharp-pointed, like burs.
Burro bush flowers, from the Anza-Borrego Desert Natural History Association Online References:
The Arizona Sonora Desert Museum Sonoran Desert Digital Library The USDA Forest Service's Fire Effects Information Database The Lady Bird Johnson Wildflower Center DesertUSA: Exploring the Southwest
4/30/2018 · Kelbaker Road, Mojave National Preserve, California · ≈ 7 × 4½″ (18 × 12 cm)
4/30/2018 · Kelbaker Road, Mojave National Preserve, California · ≈ 10 × 6″ (24 × 16 cm)
2/28/2010 · Anza-Borrego Desert State Park, California · ≈ 14 × 9″ (35 × 23 cm)
2/17/2007 · Anza-Borrego Desert State Park, California Ambrosia dumosa description by Thomas H. Kent, last updated 7 Oct 2021.
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4/30/2018 · Kelbaker Road, Mojave National Preserve, California · ≈ 10 × 6″ (24 × 16 cm)
4/30/2018 · Kelbaker Road, Mojave National Preserve, California · ≈ 10 × 6″ (24 × 16 cm)
2/28/2010 · Anza-Borrego Desert State Park, California
2/28/2010 · Anza-Borrego Desert State Park, California · ≈ 2 × 1′ (62 × 41 cm)
5/2/2018 · Pinto Basin Road, Joshua Tree National Park, California · ≈ 8 × 5″ (20 × 13 cm)
5/2/2018 · Pinto Basin Road, Joshua Tree National Park, California · ≈ 4½ × 7″ (12 × 18 cm)
5/2/2018 · Pinto Basin Road, Joshua Tree National Park, California · ≈ 6 × 4″ (16 × 11 cm) Range:
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