Willamette Valley Gumweed | Grindelia integrifolia - Benton Soil And Water Conservation District

Willamette Valley Gumweed | Grindelia integrifolia

May contain: daisy, flower, plant, petal, and pollen

May contain: daisy, flower, plant, soil, rock, vegetation, herbal, herbs, grass, petal, landscape, nature, outdoors, and leaf

May contain: daisy, flower, plant, and pollen

Perennial herbaceous plant with yellow ray and disc flowers. The entire plant is sticky with resin that has a pleasant scent. The stem and leaves are visibly hairy and shiny. Important late-season pollen source. Flowers from June to November.

Plant Details

Habitats	Shallow Marsh, Wet Prairie
Habitat Notes	Wet meadow, Coastal
Phenology	Perennial; flowering June-November
Mature Height	8-40"
Shade Preference	Full sun, part shade
Soil Tolerance	Moist soils
Special Uses	Pollinator enhancement

May contain: animal, bee, honey bee, insect, invertebrate, and wasp

Native Plant Database

We have a large searchable database of plants that are native to the Willamette Valley and other parts of Benton County. View images and filter the list by plant characteristics

May contain: bud, flower, plant, sprout, vegetation, petal, and leaf

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There are so many good reasons to plant native plants!

May contain: plant, potted plant, garden, nature, outdoors, soil, jar, planter, pottery, vase, herbal, herbs, clothing, coat, cap, hat, face, head, person, photography, portrait, gardening, jacket, glove, wood, accessories, glasses, adult, female, woman, indoors, interior design, footwear, shoe, bag, and handbag

Native Plant Sales

A marshy landscape with tall grasses, a few scattered tree stumps, and a dense forest in the background.

Shallow Marsh

Marshes are seasonally or continually flooded and occur in depressions, around lakes or ponds and along slow-flowing streams. Shallow marshes support dominant herbaceous vegetation which is rooted in…

Wet Prairie

Wet prairies were once a common habitat in the floodplain of the Willamette River. These habitats occur on poorly drained clay soils or shallow soils above bedrock. Seasonal flooding creates anaerobic…