Cylindropuntia spinosior x arbuscula  Cane Cholla - Pencil Cholla Hybrid
CACTUS.  A single plant was found under mesquite trees in flat, sandy soil on a tributary to Davidson Canyon.  Long, thin, slightly tuberculate branches, 1 - 1.5 cm in diameter, with large white areoles, almost no glochids, and sparse central spines.  Flowers not seen.  Fruits resemble those of C. spinosior but more elongate, narrower, crinkled.
FAMILY:  Cactaceae (Cactus Family)