Frost Mat, Onyxflower
Achronychia cooperi
![Frost Mat, Onyxflower: Achronychia cooperi](cooperi/cooperi03-29-2011a.jpg)
Frost mat as seen on sandy soils at the Indian Head Ranch north of Borrego Springs, California..........March 29, 2011.
![Frost Mat, Onyxflower: Achronychia cooperi](cooperi/cooperi03-25-2010.jpg)
Frost mat as seen on sandy soils at the Indian Head Ranch north of Borrego Springs, CA........March 25, 2010.
![Frost Mat, Onyxflower: Achronychia cooperi](cooperi/cooperi03-26-2005a.jpg)
- ![Frost Mat, Onyxflower: Achronychia cooperi](cooperi/cooperi03-26-2005c.jpg)
Frost mat blooming on a sandy wash adjacent to Ram's Hill, southeast of Borrego Springs, CA......March 26, 2005.
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- ![Frost Mat, Onyxflower: Achronychia cooperi](cooperi/cooperi03-29-2011d.jpg)
Frost mat as seen on sandy soils at the Indian Head Ranch north of Borrego Springs, California..........March 29, 2011.
Paul Slichter