[Members of the Sunflower Family with Button-like Flower Heads in the Mountains and Deserts of the American Southwest]

[Members of the sunflower Family with Shrub-like Growth in the Mountains and Deserts of the American Southwest]

Burrobush, Bur-sage and Ragweeds of the Mountains and Deserts of the American Southwest

The Genus Ambrosia

Cheesebush, Burrobrush: Ambrosia salsola var. salsola (Synonym: Ambrosia salsola var. salsola)

Cheesebush, Burrobrush: Ambrosia salsola var. salsola

Annual Burrweed, Annual Bursage, Annual Bur-sage: Ambrosia acanthicarpa (Synonym: Franseria acanthicarpa)

Weak-leaf Bur-sage, Weak-leaved Burweed, Weakleaf Burr Ragweed: Ambrosia confertiflora (Synonym: Franseria conferiflora)

Burrobush, Burro-weed, White Bursage, White Bur-sage: Ambrosia dumosa (Synonym: Franseria dumosa)

Singlewhorl Burrobrush: Ambrosia monogyra (Synonym: Hymenoclea monogyra)

Ragweed, Western Ragweed: Ambrosia psilostachya (Synonym: Ambrosia psilostachya var. californica)

Ragweed, San Diego Ambrosia, San Diego Ragweed: Ambrosia pumila

Cheesebush, Five-scaled Burrobrush: Ambrosia salsola var. pentalepis (Synonym: Hymenoclea salsola var. pentalepis)

Cheesebush, Burrobrush: Ambrosia salsola var. salsola (Synonym: Ambrosia salsola var. salsola)

Paul Slichter E-mail