Madrone Wall Plant Survey

Save Madrone

Plant survey finds over 100 native plant species at threatened site

In 1999, the Madrone Wall Preservation Committee paid for botanists from Portland State University to conduct an inventory of plants on the Madrone Wall site. This survey and others that have followed have identified over 100 native plant species at the site of this amazing civic treasure. The area contains hundreds of uncommon Pacific madrone, a few remaining old growth Douglas-fir, Pacific Dogwood, and wide variety of native wildflowers including such showy flowers as Oregon fawn lily, Western Wake-robin trillium, Stream violets, Pacific bleeding heart, Oregon flag iris, Western Solomon seal, Calypso orchid, and the Spotted coralroot orchid.

The following list identifies the plant species found on the 44 acre site.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72	Native Herbs: Achlys triphylla Anaphalis margaritacea Anemone deltoidea Aguilegia formosa Asarum caudatum Asplenium trichomanes Athyrium filix-femina Calypso bulbosa Cardamine oligosperma Cardamine pulcherrima Circaea alpina Claytonia sibirica Collinsia parviflora Collomia heterophylla Corallorhiza maculata Cystopteris fragilis Dicentra formosa Dichelostemma (Brodiaea) congestum Draba verna Epilobium ciliatum Equisetum telmateia v. braunii Erigeron strigosus Erythronium oregonum Fragaria vesca v. crinita Galium aparine v. echinospermum Geum macrophyllum v. macrophyllum Gilia capitata Goodyera oblongifolia Heuchera micrantha Hieracium albiflorum Hydrophyllum tenuipes Iris tenax Lonicera ciliosa Lonicera hispidula Luzula parviflora Lysichitum americanum Maianthemum dilatatum Marah oreganus Mimulus alsinoides Moehringia (Arenaria) macrophylla Montia diffusa Montia sibirica v. sibirica Nemophila parviflora Nemophila pedunculata Osmorhiza chilensis Oxalis sp. Petasites frigidus Pityrogramma triangularis Polypodium glycyrrhiza Polystichum munitum Potentilla gracilis Pteridium aquilinum v. pubescens Pyrola asarifolia Ranunculus repens Ranunculus uncinatus v. parviflorus Satureja douglasii Saxifraga sp. Selaginella wallacei Smilacina racemosa Smilacina stellata Streptopus amplexifolius Synthyris reniformis Tellima grandiflora Tolmiea menziesii Trientalis latifolia Trillium ovatum Vancouveria hexandra Veratrum viride Veronica americana Vicia gigantea Viola glabella Viola sempervirens	Vanilla leaf Pearly everlasting Columbia windflower Columbine Wild Ginger Maidenhair spleenwort Lady-fern Lady slipper or Deer’s-head orchid Little western bittercress Slender toothwort Enchanter's nightshade Candy flower Small flowered blue-eyed Mary Varied-leaved Collomia Spotted coralroot orchid Brittle bladder-fern Pacific bleeding heart Blue Dicks or Ookow Spring or Vernal whitlow-grass Willow-herb Giant horsetail Daisy fleabane Oregon fawn lily Strawberry Goose-grass Large-leaf avens Blue field gilia Rattlesnake orchid Sm.-flowered Heuchera or Alum Root White flowered hawkweed Pacific waterleaf Oregon flag iris Orange honeysuckle Hairy honeysuckle Woodrush Skunk cabbage False lily of the valley Wild cucumber Chickweed monkey-flower Large-leaved or Big-leaf Sandwort Miner's lettuce or Diffuse Montia Siberian miner's lettuce Woods nemophila Spreading nemophila Sweet-cicely Sorrel Coltsfoot Gold-back fern Licorice fern Sword fern Slender or 5-finger cinquefoil Bracken fern Wintergreen Creeping buttercup Little buttercup Yerba buena Saxifrage Wallace's lesser-clubmoss Western Solomon seal Starry false Solomon's seal Twisted stalk Snow-queen Fringecup Youth-on-age Western Starflower Western Wake-robin trillium Inside-out flower American false hellebore American brooklime Giant vetch Stream violet Evergreen violet
1 2 3 4 5 6 7 8	Native Grasses and Sedges: Bromus spp. Carex deweyana Carex hendersonii Carex obnupta Carex stipata Elymus glaucus Glyceria elata Luzula parviflora	Bromes Deweys sedge Hendersons sedge Slough sedge Stain-grain (Sawbeak) sedge Blue wildrye Tall mannagrass Small flowered woodrush
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24	Native Shrubs: Amelanchier alinfolia Berberis aquifolium Berberis nervosa Clematis ligusticifolia Corylus cornuta Gaulatheria shallon Holodiscus discolor Oemleria cerasiformis Philedelphus lewisii Physocarpus capitatus Rhus diversiloba Ribes sanguineum Rosa gymnocarpa Rosa multiflora Rosa nutkana Rosa pisocarpa Rubus parvifloris Rubus spectabilis Rubus ursinus v. macropetalus Stachys cooleyae Symphocarpus alba v. laevigatus Symphoricarpos mollis Urtica dioica ssp. gracilis Vaccinium parvifolium	Western serviceberry Shining Oregon grape Many leaved Oregon grape Clematis Hazelnut Salal Oceanspray Indian plum Mock orange Pacific ninebark Poison oak Red flowering currant Baldhip rose Multiflora rose Nootka rose Clustered wild rose Thimbleberry Salmonberry Pacific blackberry Cooley’s hedge nettle Snowberry Creeping snowberry Stinging nettle Red huckleberry
1 2 3 4 5 6 7 8 9 10 11 12 13 14	Native Trees: Acer circintatum Acer macrophyllum Alnus rubra Arbutus menziesii Cornus nuttallii Fraxinus latifolia Populus trichocarpa Prunus emarginata var. emarginata Prunus sp. (cherry) Pseudotsuga menzeisii Rhamnus purshiana Sambucus racemosa Taxus brevifolia Thuja plicata	Vine maple Big leaf maple Red alder Pacific madrone Pacific dogwood Oregon ash Black cottonwood Bitter Cherry Cherry Douglas fir Cascara Red elderberry Pacific yew Western red cedar
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29	Non-native Herbs: Arabidopsis thaliana Centaureum erythraea Cirsium arvense Daucus carota Digitalis purpurea Dipsacus fullonum Dipsacus sativus Galium parisiense Gerainium robertianum Gerainium columbinum Hypericum perfoliatum Hypochaeris glabra Impatiens capensis Lamium purpureum Lapsana communis Leucanthemum vulgare Myosotis discolor Plantago lanceolata Plantago major Prunella vulgaris Ranunculus repens Ranunculus sardous Rumex obtusifolius Senecio jacobaea Senecio vulgaris Taraxacum officinale Torilis arvensis Vicia hirsuta Vicia sativa v. sativa	Wall cress Common centaury Canada thistle Wild carrot Foxglove Teasel Teasel Wall bedstraw Herb robert Long-stalked geranium St. John's wort Smooth cat’s-ears Spotted touch-me-not Red dead nettle Nipplewort Oxeye daisy Small flowered forget-me-not English plantain Broadleaf plantain Self heal Creeping Buttercup Hairy buttercup Bitterdock Tansy ragwort Common Groundsel Dandelion Field Hedge Parsley Tiny vetch Common vetch
1 2 3 4 5	Non-native Grasses and Sedges: Agrostis stolonifera Brachypodium sylvaticum Cynosurus echinatus Holcus lanatus Phalaris arundinacea	Creeping bentgrass False brome Hedgehog dogtail Common velvetgrass Reed canarygrass
1 2 3 4 5 6 7 8 9 10	Non-native Shrubs: Cytisis scoparius Hedera helix Ilex aquifolium Prunas laurocerasus Rosa ssp. Rubus armeniacus discolor Rubus laciniatus Solanum dulcamara Vinca major Vinca minor	Scot's broom English ivy English Holly English laurel Hedgerose Himilayan blackberry Evergreen blackberry Nightshade Vinca Periwinkle
1 2 3 4	Non-Vascular Plants: Bryophytes and Lichens Claopodium bolanderi Plagiochila sp. Chrysothrix chlorina Peltigera sp.	a moss a liverwort Chartreuse powdery paint lichen a lichen
Salamander: Frog: Scorpion:	Taricha granulosum Rana aurora Scorpion sp.	Rough-skinned newt Red-legged frog Scorpion
1 2 3 4 5 6 7 8 9	Birds: Turdus migratoius Zenaida macroura Piplo erythropthalmos Melospiza melodia Corvus brachyrhynchos Troglodytes troglodytes Buteo swainsoni Aphelcoma coerrulescens Ixoreus naevius	American robin Mourning dove Spotted towhee Song sparrow Crow Winter wren Red-tailed hawk Scrub jay Varied thrush
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21	Natural Heritage List (Threatened & Endangered) for Clackamas County: (not seen but may occur in area): Agoseris elata Aster curtus Calamagrostis breweri Carex livida Cimicifuga elata Coptis trifloia Corydalis aquae-gelidae Delphinium leucophaeum Delphenium pavonaceum Erigeron decumbens v. decumbens Erigeron howellii Howellii aquatilis Lomatium bradshawii Montia howellii Scheuchzeria palustris ssp. americana Sidalcea campestris Sidalcea nelsoniana Sisyrinchium sarmentosum Streptopus streptopoides Sullivantia oregana Utricularia minor	Tall agoseris White-topped aster Shorthair reedgrass Pale sedge Tall bugbane Threeleafed goldthread Cold water corydalis White rock larkspur Peacock delphinium Willamette Valley daisy Howell's erigeron Howellia Bradshaw's lomatium Howell's montia American schuechzeria Meadow sidalcea Nelson's wild-hollyhock Pale blue-eyed grass Twisted stalk Oregon sullivantia Lesser bladderwort

This site created and maintained by the Madrone Wall Preservation Committee