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Search Summary
Category All Plants 13574
Location Hoyt-Arboretum--Portland 2919
Elevation 800 feet 2805
Observation Time Now: last week of April 2342
Search Results
Click on an image for more information.
Iris tenax
tough-leaved iris 81%
Iris tenax
Trillium ovatum
Pacific trillium 75%
Trillium ovatum
Arum italicum
Italian arum 75%
Arum italicum
Sambucus racemosa
red elderberry 73%
Sambucus racemosa
Taraxacum officinale
common dandelion 72%
Taraxacum officinale
Cornus nuttallii
Pacific dogwood 71%
Cornus nuttallii
Dipsacus fullonum
Fuller's teasel 71%
Dipsacus fullonum
Lysichiton americanus
skunk cabbage 71%
Lysichiton americanus
Bellis perennis
English daisy 70%
Bellis perennis
Vinca minor
lesser periwinkle 70%
Vinca minor
Asarum caudatum
wild ginger 70%
Asarum caudatum
Achlys triphylla
vanilla leaf 70%
Achlys triphylla
Petasites frigidus
arctic sweet coltsfoot 69%
Petasites frigidus
Ficaria verna
lesser celandine 69%
Ficaria verna
Rubus spectabilis
salmonberry 69%
Rubus spectabilis
Rubus parviflorus
thimbleberry 69%
Rubus parviflorus
Dicentra formosa
Pacific bleeding heart 69%
Dicentra formosa
Viola glabella
pioneer violet 68%
Viola glabella
Cirsium vulgare
bull thistle 67%
Cirsium vulgare
Rubus ursinus
trailing blackberry 67%
Rubus ursinus
Geranium robertianum
herb Robert 67%
Geranium robertianum
Berberis nervosa
Cascade Oregon-grape 67%
Berberis nervosa
Camassia quamash
camas 66%
Camassia quamash
Amelanchier alnifolia
western serviceberry 66%
Amelanchier alnifolia
Eschscholzia californica
California poppy 66%
Eschscholzia californica
Cornus sericea
red osier dogwood 65%
Cornus sericea
Prosartes hookeri
Hooker's fairy bells 65%
Prosartes hookeri
Erythronium oregonum
Oregon fawn-lily 65%
Erythronium oregonum
Lunaria annua
annual honesty 65%
Lunaria annua
Achillea millefolium
yarrow 64%
Achillea millefolium
Lamium purpureum
purple deadnettle 64%
Lamium purpureum
Oxalis oregana
redwood sorrel 64%
Oxalis oregana
Rubus bifrons
Himalayan blackberry 64%
Rubus bifrons
Verbascum thapsus
woolly mullein 64%
Verbascum thapsus
Claytonia sibirica
candy flower 64%
Claytonia sibirica
Geranium lucidum
shining geranium 63%
Geranium lucidum
Urtica dioica
stinging nettle 61%
Urtica dioica
Cytisus scoparius
scotch broom 61%
Cytisus scoparius
Ranunculus repens
creeping buttercup 61%
Ranunculus repens
Fragaria vesca
woodland strawberry 61%
Fragaria vesca
Ilex aquifolium
English holly 61%
Ilex aquifolium
Vicia sativa
common vetch 60%
Vicia sativa
Tellima grandiflora
fragrant fringecup 60%
Tellima grandiflora
Cardamine nuttallii
slender toothwort 60%
Cardamine nuttallii
Aquilegia formosa
crimson columbine 60%
Aquilegia formosa
Holodiscus discolor
ocean-spray 59%
Holodiscus discolor
Berberis aquifolium
tall Oregon grape 59%
Berberis aquifolium
Lonicera involucrata
twinberry honeysuckle 59%
Lonicera involucrata
Mycelis muralis
wall lettuce 59%
Mycelis muralis
Plectritis congesta
shortspur seablush 59%
Plectritis congesta
Hypochaeris radicata
hairy cat's-ear 59%
Hypochaeris radicata
Crataegus monogyna
oneseed hawthorn 58%
Crataegus monogyna
Nuphar polysepala
Western yellow pond-lily 58%
Nuphar polysepala
Prosartes smithii
largeflower fairybells 58%
Prosartes smithii
Castilleja hispida
harsh Indian paintbrush 58%
Castilleja hispida
Arbutus menziesii
Pacific madrone 58%
Arbutus menziesii
Geum macrophyllum
largeleaf avens 58%
Geum macrophyllum
Camassia leichtlinii
large camas 58%
Camassia leichtlinii
Vancouveria hexandra
northern inside-out flower 57%
Vancouveria hexandra
Ribes sanguineum
red-flowering currant 57%
Ribes sanguineum
Vaccinium parvifolium
red huckleberry 57%
Vaccinium parvifolium
Maianthemum racemosum
plumed solomon's seal 57%
Maianthemum racemosum
Anemonastrum deltoideum
Columbia windflower 57%
Anemonastrum deltoideum
Gaultheria shallon
salal 57%
Gaultheria shallon
Fritillaria affinis
checker lily 56%
Fritillaria affinis
Trifolium repens
white clover 56%
Trifolium repens
Melissa officinalis
common balm 56%
Melissa officinalis
Daucus carota
Queen Anne's lace 56%
Daucus carota
Hydrophyllum tenuipes
Pacific Waterleaf 56%
Hydrophyllum tenuipes
Aesculus hippocastanum
horse-chestnut 56%
Aesculus hippocastanum
Rhododendron macrophyllum
Pacific rhododendron 56%
Rhododendron macrophyllum
Rosa nutkana
Nootka rose 56%
Rosa nutkana
Oemleria cerasiformis
Indian plum 56%
Oemleria cerasiformis
Leucanthemum vulgare
oxeye daisy 56%
Leucanthemum vulgare
Rosa gymnocarpa
baldhip rose 56%
Rosa gymnocarpa
Kerria japonica
Japanese rose 56%
Kerria japonica
Plantago lanceolata
English plantain 56%
Plantago lanceolata
Glechoma hederacea
ground-ivy 55%
Glechoma hederacea
Trifolium pratense
red clover 55%
Trifolium pratense
Rumex obtusifolius
bitter dock 55%
Rumex obtusifolius
Symphoricarpos albus
common snowberry 55%
Symphoricarpos albus
Cardamine hirsuta
hairy bittercress 55%
Cardamine hirsuta
Jacobaea vulgaris
tansy ragwort 55%
Jacobaea vulgaris
Lilium columbianum
Columbia tiger lily 55%
Lilium columbianum
Lysimachia latifolia
western starflower 55%
Lysimachia latifolia
Claytonia perfoliata
miner's lettuce 55%
Claytonia perfoliata
Stellaria media
common chickweed 55%
Stellaria media
Toxicodendron diversilobum
Pacific poison oak 55%
Toxicodendron diversilobum
Calypso bulbosa
fairy slipper 55%
Calypso bulbosa
Digitalis purpurea
foxglove 55%
Digitalis purpurea
Eriophyllum lanatum
Oregon sunshine 54%
Eriophyllum lanatum
Collinsia grandiflora
giant blue eyed Mary 54%
Collinsia grandiflora
Conium maculatum
poison hemlock 54%
Conium maculatum
Spiraea douglasii
hardhack 54%
Spiraea douglasii
Centaurea cyanus
bachelor's button 54%
Centaurea cyanus
Veronica persica
persian speedwell 54%
Veronica persica
Erodium cicutarium
redstem storksbill 54%
Erodium cicutarium
Viola odorata
sweet blue violet 54%
Viola odorata
Alliaria petiolata
garlic mustard 53%
Alliaria petiolata
Acer circinatum
vine maple 53%
Acer circinatum
Trifolium incarnatum
crimson clover 53%
Trifolium incarnatum
Reynoutria japonica
Japanese knotweed 53%
Reynoutria japonica
Pseudotsuga menziesii
Douglas fir 53%
Pseudotsuga menziesii
Polystichum munitum
western swordfern 53%
Polystichum munitum
Ailanthus altissima
tree of heaven 53%
Ailanthus altissima
Acer macrophyllum
bigleaf maple 53%
Acer macrophyllum
Geranium molle
dovefoot geranium 53%
Geranium molle
Heracleum maximum
cow-parsnip 53%
Heracleum maximum
Cymbalaria muralis
ivy-leaved toadflax 53%
Cymbalaria muralis
Erysimum capitatum
western wallflower 53%
Erysimum capitatum
Thuja plicata
western red cedar 53%
Thuja plicata
Fraxinus latifolia
Oregon ash 53%
Fraxinus latifolia
Tsuga heterophylla
western hemlock 53%
Tsuga heterophylla
Cirsium arvense
Canada thistle 53%
Cirsium arvense
Plantago major
common plantain 53%
Plantago major
Liriodendron tulipifera
tulip tree 53%
Liriodendron tulipifera
Chamaenerion angustifolium
fireweed 52%
Chamaenerion angustifolium
Lonicera ciliosa
orange honeysuckle 52%
Lonicera ciliosa
Madia elegans
common madia 52%
Madia elegans
Hedera helix
English ivy 52%
Hedera helix
Impatiens capensis
orange jewelweed 52%
Impatiens capensis
Galium aparine
common cleavers 52%
Galium aparine
Polypodium glycyrrhiza
licorice fern 52%
Polypodium glycyrrhiza
Senecio vulgaris
common groundsel 52%
Senecio vulgaris
Adelinia grandis
Pacific hound's tongue 52%
Adelinia grandis
Ranunculus occidentalis
western buttercup 52%
Ranunculus occidentalis
Lapsana communis
common nipplewort 52%
Lapsana communis
Vinca major
greater periwinkle 52%
Vinca major
Pentaglottis sempervirens
evergreen bugloss 52%
Pentaglottis sempervirens
Lupinus polyphyllus
bigleaf lupine 51%
Lupinus polyphyllus
Maianthemum stellatum
starry Solomon's seal 51%
Maianthemum stellatum
Erythranthe guttata
common monkey-flower 51%
Erythranthe guttata
Malus domestica
cultivated apple 51%
Malus domestica
Equisetum telmateia
great horsetail 51%
Equisetum telmateia
Maianthemum dilatatum
false lily-of-the-valley 51%
Maianthemum dilatatum
Alnus rubra
red alder 51%
Alnus rubra
Ceanothus sanguineus
redstem ceanothus 51%
Ceanothus sanguineus
Lamium galeobdolon
yellow archangel 51%
Lamium galeobdolon
Acer platanoides
Norway maple 51%
Acer platanoides
Lathyrus latifolius
perennial peavine 51%
Lathyrus latifolius
Caltha palustris
yellow marsh marigold 50%
Caltha palustris
Sidalcea campestris
meadow checker-mallow 50%
Sidalcea campestris
Physocarpus capitatus
Pacific ninebark 50%
Physocarpus capitatus
Brassica rapa
field mustard 50%
Brassica rapa
Prunus avium
wild cherry 50%
Prunus avium
Quercus garryana
Oregon white oak 50%
Quercus garryana
Ranunculus orthorhynchus
straight-beak buttercup 50%
Ranunculus orthorhynchus
Osmorhiza berteroi
mountain sweet-cicely 50%
Osmorhiza berteroi
Adiantum aleuticum
Aleutian maidenhair 49%
Adiantum aleuticum
Verbascum blattaria
moth mullein 49%
Verbascum blattaria
Fragaria X ananassa
cultivated strawberry 49%
Fragaria X ananassa
Lysimachia nummularia
creeping jenny 49%
Lysimachia nummularia
Lathyrus polyphyllus
leafy pea 49%
Lathyrus polyphyllus
Hypericum perforatum
common St. John's wort 49%
Hypericum perforatum
Populus trichocarpa
black cottonwood 49%
Populus trichocarpa
Actaea rubra
baneberry 49%
Actaea rubra
Moehringia macrophylla
largeleaf sandwort 49%
Moehringia macrophylla
Cichorium intybus
chicory 49%
Cichorium intybus
Paulownia tomentosa
princess tree 49%
Paulownia tomentosa
Collomia grandiflora
grand collomia 48%
Collomia grandiflora
Prunus emarginata
bitter cherry 48%
Prunus emarginata
Oenothera biennis
common evening-primrose 48%
Oenothera biennis
Raphanus sativus
cultivated radish 48%
Raphanus sativus
Abies grandis
grand fir 48%
Abies grandis
Athyrium filix-femina
common ladyfern 48%
Athyrium filix-femina
Arabidopsis thaliana
thalecress 48%
Arabidopsis thaliana
Valerianella locusta
cornsalad 48%
Valerianella locusta
Pteridium aquilinum
bracken fern 48%
Pteridium aquilinum
Tolmiea menziesii
youth-on-age 48%
Tolmiea menziesii
Veratrum viride
green false hellebore 48%
Veratrum viride
Rubus laciniatus
cutleaf blackberry 48%
Rubus laciniatus
Oxalis corniculata
yellow oxalis 48%
Oxalis corniculata
Lamium maculatum
spotted deadnettle 47%
Lamium maculatum
Veronica regina-nivalis
snow queen 47%
Veronica regina-nivalis
Frangula purshiana
cascara buckthorn 47%
Frangula purshiana
Anaphalis margaritacea
pearly everlasting 47%
Anaphalis margaritacea
Cerastium viride
field chickweed 47%
Cerastium viride
Nemophila parviflora
small-flowered nemophila 47%
Nemophila parviflora
Erythranthe alsinoides
chickweed monkeyflower 47%
Erythranthe alsinoides
Monotropa uniflora
Indian pipe 47%
Monotropa uniflora
Ranunculus californicus
California buttercup 47%
Ranunculus californicus
Arctostaphylos uva-ursi
kinnikinnick 47%
Arctostaphylos uva-ursi
Akebia quinata
chocolate vine 47%
Akebia quinata
Centranthus ruber
red valerian 47%
Centranthus ruber
Potentilla indica
mock strawberry 47%
Potentilla indica
Evernia prunastri
oakmoss 47%
Evernia prunastri
Viola howellii
Howell's violet 47%
Viola howellii
Sorbus aucuparia
European mountain-ash 47%
Sorbus aucuparia
Ranunculus uncinatus
woodland buttercup 47%
Ranunculus uncinatus
Malus fusca
Oregon crabapple 47%
Malus fusca
Trifolium willdenovii
tomcat clover 47%
Trifolium willdenovii
Fragaria virginiana
Virginia strawberry 47%
Fragaria virginiana
Veronica serpyllifolia
thyme-leaved speedwell 47%
Veronica serpyllifolia
Sedum spathulifolium
broadleaf stonecrop 47%
Sedum spathulifolium
Ajuga reptans
common bugle 47%
Ajuga reptans
Aruncus dioicus
goatsbeard 46%
Aruncus dioicus
Lupinus polycarpus
smallflower lupine 46%
Lupinus polycarpus
Prunella vulgaris
common self-heal 46%
Prunella vulgaris
Sanicula crassicaulis
Pacific sanicle 46%
Sanicula crassicaulis
Myosotis discolor
changing forget-me-not 46%
Myosotis discolor
Hesperis matronalis
dame's rocket 46%
Hesperis matronalis
Solanum dulcamara
bittersweet nightshade 46%
Solanum dulcamara
Hibiscus syriacus
rose of Sharon 46%
Hibiscus syriacus
Heracleum mantegazzianum
giant hogweed 46%
Heracleum mantegazzianum
Helianthus annuus
sunflower 46%
Helianthus annuus
Cardamine angulata
seaside bittercress 46%
Cardamine angulata
Clarkia amoena
farewell to spring 46%
Clarkia amoena
Viola sempervirens
evergreen violet 46%
Viola sempervirens
Oxalis suksdorfii
western yellow oxalis 46%
Oxalis suksdorfii
Tanacetum vulgare
common tansy 46%
Tanacetum vulgare
Nemophila menziesii
baby blue eyes 46%
Nemophila menziesii
Convolvulus arvensis
field bindweed 46%
Convolvulus arvensis
Malva neglecta
common mallow 46%
Malva neglecta
Syringa vulgaris
lilac 45%
Syringa vulgaris
Plantago pusilla
woolly Indianwheat 45%
Plantago pusilla
Antirrhinum majus
garden snapdragon 45%
Antirrhinum majus
Oenanthe sarmentosa
water-parsley 45%
Oenanthe sarmentosa
Viburnum opulus
Eurasian cranberry bush 45%
Viburnum opulus
Goodyera oblongifolia
western rattlesnake plantain 45%
Goodyera oblongifolia
Philadelphus lewisii
Lewis's mock orange 45%
Philadelphus lewisii
Erythranthe microphylla
small-leaf monkeyflower 45%
Erythranthe microphylla
Iris douglasiana
Douglas' iris 45%
Iris douglasiana
Micranthes marshallii
Marshall's saxifrage 45%
Micranthes marshallii
Cardamine oligosperma
little western bittercress 45%
Cardamine oligosperma
Prunus cerasifera
cherry plum 45%
Prunus cerasifera
Amsinckia lycopsoides
bugloss fiddleneck 45%
Amsinckia lycopsoides
Delphinium nuttallianum
upland larkspur 45%
Delphinium nuttallianum
Cerastium glomeratum
sticky chickweed 45%
Cerastium glomeratum
Veronica filiformis
thread-stalk speedwell 45%
Veronica filiformis
Achlys californica
vanilla leaf 45%
Achlys californica
Hedera hibernica
Atlantic Ivy 45%
Hedera hibernica
Vicia hirsuta
tiny vetch 45%
Vicia hirsuta
Claytonia parviflora
streambank springbeauty 45%
Claytonia parviflora
Viola adunca
hookedspur violet 45%
Viola adunca
Streptopus amplexifolius
clasping twisted-stalk 45%
Streptopus amplexifolius
Collinsia parviflora
maiden blue eyed Mary 45%
Collinsia parviflora
Calystegia silvatica
shortstalk false bindweed 45%
Calystegia silvatica
Corallorhiza maculata
spotted coralroot 44%
Corallorhiza maculata
Crataegus gaylussacia
Huckleberry hawthorn 44%
Crataegus gaylussacia
Corylus cornuta
beaked hazelnut 44%
Corylus cornuta
Taxus brevifolia
Pacific yew 44%
Taxus brevifolia
Rumex crispus
curly dock 44%
Rumex crispus
Rosa canina
dog rose 44%
Rosa canina
Equisetum arvense
common horsetail 44%
Equisetum arvense
Epilobium ciliatum
fringed willowherb 44%
Epilobium ciliatum
Aphyllon purpureum
naked broomrape 44%
Aphyllon purpureum
Lupinus latifolius
broadleaf lupine 44%
Lupinus latifolius
Trifolium dubium
lesser hop trefoil 44%
Trifolium dubium
Taraxacum erythrospermum
red-seeded dandelion 44%
Taraxacum erythrospermum
Capsella bursa-pastoris
shepherd's purse 44%
Capsella bursa-pastoris
Corallorhiza striata
striped coralroot 44%
Corallorhiza striata
Thelypodium laciniatum
cut-leaf thelypody 44%
Thelypodium laciniatum
Penstemon ovatus
egg-leaf beardtongue 44%
Penstemon ovatus
Barbarea orthoceras
American wintercress 44%
Barbarea orthoceras
Amsinckia menziesii
common fiddleneck 44%
Amsinckia menziesii
Lupinus bicolor
miniature lupine 44%
Lupinus bicolor
Typha latifolia
broad-leaf cattail 44%
Typha latifolia
Arctium minus
common burdock 43%
Arctium minus
Geranium oreganum
Oregon geranium 43%
Geranium oreganum
Tropaeolum majus
garden nasturtium 43%
Tropaeolum majus
Cryptantha intermedia
common cryptantha 43%
Cryptantha intermedia
Vicia villosa
hairy vetch 43%
Vicia villosa
Erodium moschatum
whitestem filaree 43%
Erodium moschatum
Wyethia angustifolia
narrow-leaf mule's ears 43%
Wyethia angustifolia
Robinia pseudoacacia
black locust 43%
Robinia pseudoacacia
Saxifraga mertensiana
wood saxifrage 43%
Saxifraga mertensiana
Rubus leucodermis
blackcap raspberry 43%
Rubus leucodermis
Layia glandulosa
white-daisy tidytips 43%
Layia glandulosa
Adenocaulon bicolor
American trailplant 43%
Adenocaulon bicolor
Rumex acetosella
sheep sorrel 43%
Rumex acetosella
Sanicula bipinnatifida
purple sanicle 43%
Sanicula bipinnatifida
Mitellastra caulescens
leafy mitrewort 43%
Mitellastra caulescens
Cardamine flexuosa
wavy bittercress 43%
Cardamine flexuosa
Vicia americana
American vetch 43%
Vicia americana
Cardamine occidentalis
big western bittercress 43%
Cardamine occidentalis
Equisetum hyemale
scouring horsetail 43%
Equisetum hyemale
Berberis thunbergii
Japanese barberry 43%
Berberis thunbergii
Sonchus oleraceus
common sow-thistle 43%
Sonchus oleraceus
Linaria vulgaris
common toadflax 43%
Linaria vulgaris
Sherardia arvensis
field madder 43%
Sherardia arvensis
Cornus unalaschkensis
Alaskan bunchberry 43%
Cornus unalaschkensis
Rosa rugosa
rugosa rose 43%
Rosa rugosa
Prunus virginiana
chokecherry 43%
Prunus virginiana
Vaccinium ovatum
evergreen huckelberry 42%
Vaccinium ovatum
Ranunculus sceleratus
cursed buttercup 42%
Ranunculus sceleratus
Centaurea montana
perennial cornflower 42%
Centaurea montana
Vicia nigricans
black vetch 42%
Vicia nigricans
Cerastium arvense
field chickweed 42%
Cerastium arvense
Ribes divaricatum
spreading gooseberry 42%
Ribes divaricatum
Floerkea proserpinacoides
false mermaid 42%
Floerkea proserpinacoides
Leonurus cardiaca
motherwort 42%
Leonurus cardiaca
Tiarella trifoliata
foamflower 42%
Tiarella trifoliata
Paxistima myrsinites
mountain lover 42%
Paxistima myrsinites
Brassica napus
rape 42%
Brassica napus
Saponaria ocymoides
rock soapwort 42%
Saponaria ocymoides
Carduus nutans
musk thistle 42%
Carduus nutans
Sonchus asper
spiny sow-thistle 42%
Sonchus asper
Draba verna
spring whitlow-grass 42%
Draba verna
Heuchera micrantha
small-flowered alumroot 42%
Heuchera micrantha
Clarkia gracilis
slender clarkia 42%
Clarkia gracilis
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