Penstemon hesperius M. Peck
Annotated by Craig C. Freeman, 6 Jan 2017. Remarks: (KANU)

Oregon: Washington County: Tualatin River National Wildlife Refuge, Bump Unit, 2 mi NNE of Sherwood. Elev. 120 ft.
45.392162° N, 122.831372° W; T02S R01W SW4SE4 Sec. 17.
Coordinate Source: Specimen Label.
Forming clumps 3-10 ft in diameter between stand of Phalaris arundinacea and woody plants invading old pasture. WIth Crataegus monogyna, Crataegus douglasii, Fraxinus latifolia, Rubus bifrons, Symphoricarpos albus, Leucanthemum vulgare, Lupinus polyphyllus, Pteridium aquilinum, Poa pratensis, Anthoxanthum odoratum, Vicia hirsuta. Partial shade. Being managed to suppress competing vegetation. Phenology: Flowers.

John A. Christy 10667, May 19, 2016
HPSU, Accession: 17767