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Introduction to the Project
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- As part of the course, ESR 410/510 - Biodiversity of Oregon Wetland Plants , students are helping to create a web site which will contain descriptions (including pictures) of the common wetland plants found in the greater Portland area. Students are responsible for doing the background reasearch regard their chosen species, taking the photographs used in the web site and preparing the species descriptions.
The line drawings used in this web site are provided with the perimssion of the University of Washington Press. They come from the five volume set of Vascular Plants of the Pacific Northwest, C.L. Hitchcock, A. Conquist, M. Ownbey, and J.W. Thompson, 1969, University of Washington Press.
Plant List
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- Following plants have been, or will be described:
Family: Aceraceae
Acer circinatum - vine maple
Acer macrophyllum - big-leaf maple
Family: Araceae
Lysichiton americanum - skunk-cabbage
Family: Adiantaceae
Adiantum aleuticum - maidenhair fern
Family: Alismataceae
Alisma plantago-aquatica - American water-plantain
Sagittaria latifolia - wapato
Family: Apiaceae
Hydrocotyle ranunculoides - marsh-pennywort
Conium maculatum - poison hemlock
Oenanthe sarmentos - water parsley
Family: Araliaceae
Oplopanax horridus - devil's club
Family: Asteraceae
Bidens cernua - nodding beggarticks
Bidens frondosa - common beggarticks
Gnaphalium uliginosum - marsh cudweed
Family: Balsamiaceae
Impatiens noli-tangere - yellow touch-me-not
Impatiens capensis - spotted touch-me-not
Family: Betulaceae
Alnus rubra - red alder
Betula glandulosa var. hallii - bog birch
Family: Boraginaceae
Myosotis laxa - small water forget-me-not
Myosotis scorpioides - water forget-me-not
Family: Brassicaceae
Rorippa islandica - yellow marshcress
Rorippa nasturtium-aquaticum - watercress
Family: Caprifoliaceae
Lonicera involucrata - black twinberry
Symphoricarpus albus - common snowberry
Family: Certophyllaceae
Ceratophyllum demersum - coontail
Family: Cornaceae
Cornus sericea ssp. sericea - red-osier dogwood
Cornus unalaschklensis - bunchberry
Family: Cupressaceae
Thuja plicata - western red-cedar
Family: Cyperaceae
Carex arcta -northern clustered sedge
Carex densa - dense sedge
Carex deweyana - Dewey sedge
Carex feta - green-sheated sedge
Carex laeviculmis - smooth-stem sedge
Carex lanuginosa - wooly sedge
Carex obnupta - slough sedge
Carex stipata - sawbeak sedge
Carex tumulicola - foothill sedge
Carex unilateralis - one-sided sedge
Carex vesicara var. major - inflated sedge
Cyperus strigosus - strawcolor flatsedge
Dulichium arundinaceum - horsetail sedge
Eleochairs palustris - creeping spikerush
Eleocharis acicularis - needle spikerush
Eleocharis obtusa var. ovata - ovoid spikerush
Scirpus microcarpus - small-fruited bulrush
Scirpus tabernaemontanii - softstem bulrush
Family: Dryopteridaceae
Athyrium filix-femina - lady fern
Gymnocarpium dryoptersis - oak fern
Family: Equisetaceae
Equisetum arvense - field horsetail
Equisetum fluviatale - water horsetail
Equisetum hyemale - scouring rush
Equisetum telmateia var. braunii - giant horsetail
Family: Ericaceae
Kalmia microphylla ssp. occidentalis - bog laurel
Vaccinium parvifolium - red huckleberry
Family: Fabaceae
Lotus corniculatus -birdsfoot trefoil
Trifolim repens - white clover
Family Gentianaceae
Gentiana sceptrum - king gentian
Family: Grossulariacea
Ribes bracteosum - stink currant
Ribes divaricatum var. divaricatum - wax currant
Ribes lacustre - swamp gooseberry
Family: Hippuridaceae
Hippuris vulgaris - common marestail
Family: Hydrocharitaceae
Elodea canadensis - Canada waterweed
Family: Hydrophyllaceae
Hydrophyllum tenuipes - Pacific waterleaf
Family: Hypericaceae
Hypericum anangalloides - bog St. John's wort
Hypericum formosum - western St. John's wort
Family: Iridaceae
Iris pseudacorus - yellow water-flag
Family: Juncaceae
Juncus acuminatus - tapertip rush
Juncus articulatus - jointed rush
Juncus bufonius - toad rush
Juncus effusus - soft rush
Juncus ensifolius - daggerleaf rush
Juncus marginatus - grass-leaf rush
Juncus nevadensis - Sierra rush
Juncus oxymeris - pointed rush
Juncus patens - grooved rush
Juncus tenius - slender rush
Family: Lamiaceae
Mentha arvensis - field mint
Mentha spicata - spearmint
Family: Myricaceae
Myrica gale var. gale - sweetgale
Family: Nymphaeaceae
Nuphar luteum ssp. polysepalum - yellow pond-lily
Nymphaea odorata - White waster-lily
Family: Oleaceae
Fraxinus latifolia - Oregon ash
Family: Onagraceae
Epilobium ciliatum - Wastaon willowherb
Ludwigia palustris - false loosestrife
Family: Plantaginaceae
Plantago lanceolata - rib plantain
Family: Poaceae
Agrostis capillaris - colonial bentgrass
Alopercurus pratensis - meadow foxtail
Beckmannia syzigachne - American slough grass
Deshampsia cespitosa - tufted hairgrass
Echinochloa crus-galli - large barnyard grass
Festuca arundinacea - tall fescue
Glyceria occidentalis - western mannagrass
Holcus lanatus - velvet grass
Hordem brachyantherum - meadow barley
Panicum capillare - witchgrass
Phalaris arundinacea - reed canary-grass
Phleum pratense - common timothy
Poa pratensis - Kentucky bluegrass
Family: Polygonaceae
Polygonum amphibium - water smartweed
Polygonum hydropiperoides - waterpepper
Polygonum pericaria - lady's thumb
Rumex acetosella ssp. angiocarpus - sheep sorrel
Rumex crispus - curly dock
Rumex occidentalis var. lavrodoricus - western dock
Family: Potamogetonaceae
Potamogeton crispus
- curly pondweed
Potamogeton foliosus - leafy pondweed
Potamogeton natans - floating-leaf pondweed
Family: Ranunculaceae
Ranunculus flammula - creeping spearwort
Ranunculus repens - creeping buttercup
Family: Rhamnaceae
Rhamnus purishiana - cascara
Family: Rosaceae
Crataegus douglasii - black hawthorn
Geum macrophyllum - largeleaf avens
Malus fusca - western crabapple
Physocarpus capitatus - Pacific ninebark
Prunus emarginata var. mollis - bitter cherry
Rosa eglanteria - sweetbrier rose
Rosa nutkana - Nootka rose
Rosa pisocarpa - peafruit rose
Rubus parviflorus var. parviflorus - thimbleberry
Rubus procerus - Himalayan blackberry
Rubus spectabilis var. spectabilis - salmonberry
Rubus ursinus - trailing blackberry
Spiraea douglasii - Douglas spirea
Family: Rubiaceae
Galium aparine - catchweed bedstraw
Galium trifidum - small bedstraw
Galium trifidum var. pacificum - Pacific bedstraw
Family: Salicaceae
Populus balsamifera ssp. trichocarpa - black cottonwood
Populus tremuloides - quaking aspen
Salix exigua ssp. melanopsis - sandbar willow
Salix fluviatilis - Columbia River willow
Salix hookeriana - Hooker willow
Salix lucida var. lasiandra - Pacific willow
Salix piperi - Piper willow
Salix rigida var. macrogemma - heartleaf willow
Salix scoleriana - Scouler willow
Salix sessilifolia - soft-leaved willow
Salix sitichensis - Sitka willow
Family: Saxifragaceae
Tellima grandiflora - fringecup
Tiarell trifoliata - three-leaf foamflower
Tolmiea menziesii - piggy-back plant
Family: Scropulariaceae
Veronica americana - American brookline
Veronica scutellata - marsh speedwell
Family: Solanaceae
Solanum dulcamara - bittersweet nightshade
Family: Sparganiaceae
Sparganium emersum - simple-stem bur-reed
Sparganium eurycarpum - giant bur-reed
Family: Taxaceace
Taxus brevifolia - Pacific yew
Family Typhacea
Typha latifolia - cattail
Family: Urticaceae
Urtica dioica - stinging nettle
Acknowledgements
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- The idea to have students assist of the development of this project was inspired by a course taught by Nancy Bowers at Portland State University. Dr. Bowers also helped with the technical implementation of this web site.
The species proper name and common name are according to A Field Guide to the Common Wetland Plants of Western Washington & Northwest Oregon, S.S. Cooke, ed., Seattle Audubon Society, Seattle, WA.
Return to Biodiversity of Oregon's Wetland Plants
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