Brickellia atractyloides explained

Brickellia atractyloides is a North American species of flowering plant in the family Asteraceae known by the common name spearleaf brickellbush.^[1] It is native to the desert regions of the southwestern United States (Arizona, California, Nevada, Utah) and northwestern Mexico (Sonora, Baja California).^{[2] [3]}

Brickellia atractyloides is a shrub up to 50 cm (20 inches) tall. It produces many small flower heads with cream-colored or pale green disc florets but no ray florets.^[4]

Varieties^{[4] [5]}

• Brickellia atractyloides var. atractyloides - Arizona, California, Colorado, Nevada, Utah
• Brickellia atractyloides var. odontolepis (B.L.Rob.) Jeps. - California, Baja California, Sonora

Flora of North America^[4] lists a third variety, var. arguta, listed here as a distinct species, Brickellia arguta, as accepted by The Plant List.

Notes and References

1. http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=1151 Calflora taxon report, University of California, Brickellia atractyloides A. Gray, spear leaved brickellia, spearleaf brickellbush
2. http://bonap.net/MapGallery/County/Brickellia%20atractyloides.png Biota of North America Program 2014 county distribution map
3. Turner, B. L. 1997. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272
4. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066246 Flora of North America, Brickellia atractyloides A. Gray
5. http://www.theplantlist.org/tpl1.1/record/gcc-85763 The Plant List, Brickellia atractyloides A.Gray