Crataegus monogyna Jacq. × Crataegus suksdorfii (Sarg.) Kruschke
[= Crataegus monogyna × Crataegus gaylussacia]
Remarks: The combination of deeply lobed leaves, red fruits, and 3 pyrenes leads me to surmise this may be a backcross between F1 C. monogyna X C. suksdorfii hybrid and C. monogyna.

Oregon: Lane County: West Eugene wetlands, west of Danebo Avenue, north of West 11th Avenue. Public Land presently known as "Tsal Luk wah." Specifically north of the "Tsanchilfin Walk' and south of power lines.
T17S R4W S30 or 31
Datum: NAD 27. Uncertainty: 805 meters. Coordinate Source: TRS2LL.
With: Crataegus monogyna, Crataegus douglasii, Fraxinus, Amelanchier, Grindelia, Daucus, Prunella, Mentha pulegium, Deschampsia. Mixture of introduced species and native prairie vegetation. Fruits red on this date; pyrenes 3. Phenology: Fruits.

Rhoda M. Love C200422, Aug 4, 2004
WTU, Accession: 369183