Prunus avium (L.) L. × Prunus emarginata (Douglas) Eaton
Remarks: Prunus x pugetensis Jacobson & Zika

Oregon: Yamhill County: North side of Rout 18, about 1 road mile west of junction with Rout 221, and about 9 miles west of Newberg. Elev. 45 m.
45° 13.1' N, 123° 5.6' W
Partly shaded thickets on roadbank, with Rubus armeniacus, Prunus avium, (P. emarginata in area). Common; Trees 8 m tall, white flowers 18-20 mm diameter; sepals reflexed; leaves folded in bud. Phenology: Flowers.

Peter F. Zika s.n., May 4, 2008
ID, Accession: 144244, Barcode: ID051617