Logfia arizonica

Arizona cottonrose

Family: Asteraceae · Type: annual · Native

Arizona cottonrose is a California native annual found in southern Southern California, southern Channel Islands, Peninsular Ranges, and western Sonoran Desert at elevations below 800 meters in locally or seasonally moist clay soils. Flowering from February to May, this plant produces small white to pale yellow flowers in compact heads approximately 4 millimeters wide. Growing with multiple forked stems 2 to 10 centimeters tall that become purplish to black, it has a delicate, branching structure. Its leaves are narrow and linear, flexible and small, with the largest leaves measuring 15 to 20 millimeters long and only 1 to 1.5 millimeters wide. The fruit develops with curved paleae arranged in distinctive vertical ranks, with outer fruits compressed and inner fruits bearing 17 to 23 small bristles.

Habitat: Locally or seasonally moist, generally clay soils

Bloom period: Feb-May

Elevation: < 800 m

Bioregions: s SCo, s ChI, PR, w DSon

California counties: Riverside, San Bernardino, San Diego, Orange, Butte, Los Angeles, Santa Barbara, Imperial

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.