Hypericum humifusum L.

Oregon: Washington County: Floodplain of Tualatin River, Gotter Prairie. Elev. 40 m.
45.4023° N, 122.9367° W
Coordinate Source: Specimen label.
Local weed at edge of thickets, seasonally wet prairie remnant, now dry, partial shade, with Prunella vulgaris, Agrostis stolonifera, Spiraea douglasii, Fraxinus latifolia. Prostrate, yellow flowers 9 mm diameter, 15-18 stamens.¶Reference specimen for illustration in Revision of Flora of the Pacific Northwest, WTU herbarium, 2023. Phenology: Flowers and Fruits.

Peter F. Zika 30598, Jul 1, 2021
WTU, Accession: 456506, Barcode: WTU-V-106328