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Plant Database
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Grass
Invasive
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Grass or Grass-like
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Suggested Action
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Report to Oregon Invasives Hotline
Use BMPs to control on private property
water birch leaf - serrate edge
Water Birch
Betula occidentalis
Native
a specimen showing leaf and inflorescence
Big-Leaf Sedge
Carex amplifolia
Grass
Native
A field of slough sedge plants. Tough leaves that catch the light.
Slough Sedge
Carex obnupta
Grass
Native
a single chamisso sedge with leaves a littl eunder half the height of the inflorescence stalks, which rise above and nod
Chamisso Sedge
Carex pachystachya
Grass
Native
red-osier dogwood shrub in a yard
Red-Osier Dogwood
Cornus sericea
Native
Douglas’ Hawthorn
Crataegus douglasii
Native
spikerush plants - stems and inflorescences
Creeping Spikerush
Eleocharis palustris
Native
Oregon Ash Fraxinus latifolia Large ogblong smooth leaves
Oregon Ash
Fraxinus latifolia
Native
purple flowers
King’s Gentian
Gentiana sceptrum
Native
Policeman’s Helmet Impatiens glandulifera Several purple and white flowers on small stems
Policeman’s Helmet
Impatiens glandulifera
Invasive
bunches of soft rush growing in standing water
Pacific Rush
Juncus effusus
Native
Intersection of stem and long slender leaves
Common Reed
Phragmites australis ssp. australis
Grass
Invasive
a thicket of hooker's willow
Hooker’s Willow
Salix hookeriana
Native
Western Red Cedar
Thuja plicata
Native
Streambank with layer of large green heart shaped leaves
Coltsfoot
Tussilago farfara
Invasive
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Plant Category

Life Forms

Shade Tolerances

Soil & Moisture Conditions

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