W Horsethief Tr to M Divide, 4-24-11. © Ron Vanderhoff.

Cooper's Rein Orchid

Piperia cooperi

The most commonly encountered Rein Orchid in the County. This orchid grows under other plants so it is difficult to find. It grows in dry soils on hillsides in coastal sage scrub and oak woodlands in Limestone, Santiago, Silverado, Trabuco, and San Juan Canyons, also along San Juan Loop Trial and both ends of the San Juan Trail.  Peak flowering is in late April and early May.

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