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Search Summary
Category All Plants13580
Location Hoyt-Arboretum--Portland2920
Elevation 800 feet2806
Observation Time Now: 1st week of September2274
Search Results
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Impatiens capensis
orange jewelweed 80%
Impatiens capensis
Dipsacus fullonum
Fuller's teasel 79%
Dipsacus fullonum
Cirsium vulgare
bull thistle 79%
Cirsium vulgare
Helenium autumnale
common sneezeweed 77%
Helenium autumnale
Helianthus annuus
sunflower 74%
Helianthus annuus
Cichorium intybus
chicory 73%
Cichorium intybus
Daucus carota
Queen Anne's lace 73%
Daucus carota
Hibiscus syriacus
rose of Sharon 73%
Hibiscus syriacus
Achillea millefolium
yarrow 72%
Achillea millefolium
Anaphalis margaritacea
pearly everlasting 71%
Anaphalis margaritacea
Rubus bifrons
Himalayan blackberry 71%
Rubus bifrons
Arum italicum
Italian arum 70%
Arum italicum
Cornus sericea
red osier dogwood 70%
Cornus sericea
Bidens cernua
nodding beggarticks 70%
Bidens cernua
Lathyrus latifolius
perennial peavine 69%
Lathyrus latifolius
Trifolium pratense
red clover 69%
Trifolium pratense
Chamaenerion angustifolium
fireweed 69%
Chamaenerion angustifolium
Rubus parviflorus
thimbleberry 68%
Rubus parviflorus
Geranium robertianum
herb Robert 67%
Geranium robertianum
Petasites frigidus
arctic sweet coltsfoot 67%
Petasites frigidus
Solanum dulcamara
bittersweet nightshade 67%
Solanum dulcamara
Cirsium arvense
Canada thistle 67%
Cirsium arvense
Linaria vulgaris
common toadflax 67%
Linaria vulgaris
Verbascum thapsus
woolly mullein 66%
Verbascum thapsus
Verbascum blattaria
moth mullein 66%
Verbascum blattaria
Phytolacca americana
American pokeweed 65%
Phytolacca americana
Plantago major
common plantain 65%
Plantago major
Ailanthus altissima
tree of heaven 65%
Ailanthus altissima
Jacobaea vulgaris
tansy ragwort 65%
Jacobaea vulgaris
Persicaria amphibia
water smartweed 65%
Persicaria amphibia
Liriodendron tulipifera
tulip tree 65%
Liriodendron tulipifera
Symphoricarpos albus
common snowberry 65%
Symphoricarpos albus
Leucanthemum vulgare
oxeye daisy 64%
Leucanthemum vulgare
Epilobium ciliatum
fringed willowherb 64%
Epilobium ciliatum
Paulownia tomentosa
princess tree 63%
Paulownia tomentosa
Hypochaeris radicata
hairy cat's-ear 63%
Hypochaeris radicata
Viburnum opulus
Eurasian cranberry bush 63%
Viburnum opulus
Oenothera biennis
common evening-primrose 63%
Oenothera biennis
Xanthium strumarium
rough cockleburr 62%
Xanthium strumarium
Trifolium repens
white clover 62%
Trifolium repens
Maianthemum racemosum
plumed solomon's seal 62%
Maianthemum racemosum
Lysichiton americanus
skunk cabbage 62%
Lysichiton americanus
Monotropa uniflora
Indian pipe 62%
Monotropa uniflora
Urtica dioica
stinging nettle 62%
Urtica dioica
Symphyotrichum subspicatum
Douglas' aster 62%
Symphyotrichum subspicatum
Berberis nervosa
Cascade Oregon-grape 61%
Berberis nervosa
Taraxacum officinale
common dandelion 61%
Taraxacum officinale
Eschscholzia californica
California poppy 61%
Eschscholzia californica
Hypericum perforatum
common St. John's wort 61%
Hypericum perforatum
Asarum caudatum
wild ginger 61%
Asarum caudatum
Sagittaria latifolia
broadleaf arrowhead 61%
Sagittaria latifolia
Prunella vulgaris
common self-heal 60%
Prunella vulgaris
Malva neglecta
common mallow 60%
Malva neglecta
Reynoutria japonica
Japanese knotweed 60%
Reynoutria japonica
Datura stramonium
jimson weed 60%
Datura stramonium
Sambucus racemosa
red elderberry 60%
Sambucus racemosa
Holodiscus discolor
ocean-spray 60%
Holodiscus discolor
Mycelis muralis
wall lettuce 60%
Mycelis muralis
Trillium ovatum
Pacific trillium 59%
Trillium ovatum
Rubus ursinus
trailing blackberry 59%
Rubus ursinus
Spiraea douglasii
hardhack 59%
Spiraea douglasii
Sorbus aucuparia
European mountain-ash 59%
Sorbus aucuparia
Hieracium umbellatum
narrowleaf hawkweed 59%
Hieracium umbellatum
Rosa gymnocarpa
baldhip rose 59%
Rosa gymnocarpa
Melissa officinalis
common balm 59%
Melissa officinalis
Achlys triphylla
vanilla leaf 59%
Achlys triphylla
Crataegus monogyna
oneseed hawthorn 59%
Crataegus monogyna
Vinca minor
lesser periwinkle 59%
Vinca minor
Tanacetum vulgare
common tansy 58%
Tanacetum vulgare
Cornus nuttallii
Pacific dogwood 58%
Cornus nuttallii
Madia elegans
common madia 58%
Madia elegans
Lilium columbianum
Columbia tiger lily 58%
Lilium columbianum
Malus domestica
cultivated apple 58%
Malus domestica
Oxalis oregana
redwood sorrel 58%
Oxalis oregana
Digitalis purpurea
foxglove 58%
Digitalis purpurea
Centaurea cyanus
bachelor's button 58%
Centaurea cyanus
Nuphar polysepala
Western yellow pond-lily 58%
Nuphar polysepala
Aesculus hippocastanum
horse-chestnut 58%
Aesculus hippocastanum
Solanum nigrum
European black nightshade 58%
Solanum nigrum
Ranunculus repens
creeping buttercup 58%
Ranunculus repens
Impatiens glandulifera
policeman's-helmet 57%
Impatiens glandulifera
Trifolium arvense
hare's foot clover 57%
Trifolium arvense
Pteridium aquilinum
bracken fern 57%
Pteridium aquilinum
Plantago lanceolata
English plantain 57%
Plantago lanceolata
Albizia julibrissin
Persian silk tree 57%
Albizia julibrissin
Canadanthus modestus
giant mountain aster 57%
Canadanthus modestus
Malva sylvestris
high mallow 57%
Malva sylvestris
Ilex aquifolium
English holly 57%
Ilex aquifolium
Bellis perennis
English daisy 56%
Bellis perennis
Bidens frondosa
devil's beggarticks 56%
Bidens frondosa
Rubus spectabilis
salmonberry 56%
Rubus spectabilis
Convolvulus arvensis
field bindweed 56%
Convolvulus arvensis
Athyrium filix-femina
common ladyfern 56%
Athyrium filix-femina
Symphyotrichum hallii
Hall's aster 56%
Symphyotrichum hallii
Tropaeolum majus
garden nasturtium 56%
Tropaeolum majus
Arbutus menziesii
Pacific madrone 56%
Arbutus menziesii
Oxalis corniculata
creeping woodsorrel 56%
Oxalis corniculata
Rubus laciniatus
cutleaf blackberry 56%
Rubus laciniatus
Actaea rubra
baneberry 56%
Actaea rubra
Rosa nutkana
Nootka rose 56%
Rosa nutkana
Proboscidea louisianica
devil's claw 56%
Proboscidea louisianica
Sonchus asper
spiny sow-thistle 55%
Sonchus asper
Lapsana communis
common nipplewort 55%
Lapsana communis
Rhododendron macrophyllum
Pacific rhododendron 55%
Rhododendron macrophyllum
Physalis philadelphica
tomatillo 55%
Physalis philadelphica
Portulaca oleracea
common purslane 55%
Portulaca oleracea
Rosa rugosa
rugosa rose 55%
Rosa rugosa
Typha latifolia
broad-leaf cattail 55%
Typha latifolia
Aquilegia formosa
crimson columbine 55%
Aquilegia formosa
Calystegia silvatica
shortstalk false bindweed 55%
Calystegia silvatica
Robinia pseudoacacia
black locust 55%
Robinia pseudoacacia
Antirrhinum majus
garden snapdragon 55%
Antirrhinum majus
Saponaria officinalis
common soapwort 54%
Saponaria officinalis
Clarkia amoena
farewell to spring 54%
Clarkia amoena
Acer platanoides
Norway maple 54%
Acer platanoides
Calystegia sepium
hedge bindweed 54%
Calystegia sepium
Gaultheria shallon
salal 54%
Gaultheria shallon
Physocarpus capitatus
Pacific ninebark 54%
Physocarpus capitatus
Abutilon theophrasti
butterprint 54%
Abutilon theophrasti
Potentilla indica
mock strawberry 54%
Potentilla indica
Lactuca serriola
prickly lettuce 54%
Lactuca serriola
Oenothera glazioviana
red-sepal evening-primrose 53%
Oenothera glazioviana
Papaver rhoeas
corn poppy 53%
Papaver rhoeas
Sonchus oleraceus
common sow-thistle 53%
Sonchus oleraceus
Centaurium erythraea
European centaury 53%
Centaurium erythraea
Anthemis cotula
stinking chamomile 53%
Anthemis cotula
Evernia prunastri
oakmoss 53%
Evernia prunastri
Arctium minus
common burdock 53%
Arctium minus
Berberis aquifolium
tall Oregon grape 53%
Berberis aquifolium
Arctostaphylos uva-ursi
kinnikinnick 53%
Arctostaphylos uva-ursi
Diplotaxis tenuifolia
perennial wallrocket 53%
Diplotaxis tenuifolia
Oenothera villosa
hairy evening-primrose 52%
Oenothera villosa
Fragaria vesca
woodland strawberry 52%
Fragaria vesca
Lonicera involucrata
twinberry honeysuckle 52%
Lonicera involucrata
Vicia sativa
common vetch 52%
Vicia sativa
Vancouveria hexandra
northern inside-out flower 52%
Vancouveria hexandra
Lunaria annua
annual honesty 52%
Lunaria annua
Rumex obtusifolius
bitter dock 52%
Rumex obtusifolius
Vaccinium parvifolium
red huckleberry 52%
Vaccinium parvifolium
Cytisus scoparius
scotch broom 52%
Cytisus scoparius
Bidens tripartita
threelobe beggarticks 52%
Bidens tripartita
Artemisia ludoviciana
gray sagewort 52%
Artemisia ludoviciana
Amelanchier alnifolia
western serviceberry 52%
Amelanchier alnifolia
Gentiana sceptrum
king's scepter gentian 52%
Gentiana sceptrum
Viola glabella
pioneer violet 52%
Viola glabella
Cornus unalaschkensis
Alaskan bunchberry 52%
Cornus unalaschkensis
Buddleja davidii
summer lilac 52%
Buddleja davidii
Lythrum salicaria
purple loosestrife 52%
Lythrum salicaria
Dicentra formosa
Pacific bleeding heart 52%
Dicentra formosa
Persicaria maculosa
spotted ladysthumb 52%
Persicaria maculosa
Scorzoneroides autumnalis
fall dandelion 52%
Scorzoneroides autumnalis
Lindernia dubia
yellowseed false pimpernel 52%
Lindernia dubia
Sium suave
water parsnip 52%
Sium suave
Lysimachia nummularia
creeping jenny 51%
Lysimachia nummularia
Bidens vulgata
big devils beggartick 51%
Bidens vulgata
Grindelia hirsutula
gumweed 51%
Grindelia hirsutula
Centaurea X moncktonii
meadow knapweed 51%
Centaurea X moncktonii
Prosartes hookeri
Hooker's fairy bells 51%
Prosartes hookeri
Claytonia sibirica
candy flower 51%
Claytonia sibirica
Euphorbia maculata
milk purslane 51%
Euphorbia maculata
Alisma triviale
northern water plantain 51%
Alisma triviale
Nymphaea odorata
American waterlily 51%
Nymphaea odorata
Physostegia parviflora
western false dragonhead 51%
Physostegia parviflora
Chenopodium album
lambsquarters 51%
Chenopodium album
Cymbalaria muralis
ivy-leaved toadflax 51%
Cymbalaria muralis
Geum macrophyllum
largeleaf avens 51%
Geum macrophyllum
Hedera helix
English ivy 50%
Hedera helix
Maianthemum stellatum
starry Solomon's seal 50%
Maianthemum stellatum
Solanum lycopersicum
garden tomato 50%
Solanum lycopersicum
Gratiola neglecta
clammy hedgehyssop 50%
Gratiola neglecta
Polystichum munitum
western swordfern 50%
Polystichum munitum
Polygonum aviculare
prostrate knotweed 50%
Polygonum aviculare
Thuja plicata
western red cedar 50%
Thuja plicata
Trifolium incarnatum
crimson clover 50%
Trifolium incarnatum
Lonicera ciliosa
orange honeysuckle 50%
Lonicera ciliosa
Adiantum aleuticum
Aleutian maidenhair 50%
Adiantum aleuticum
Tsuga heterophylla
western hemlock 50%
Tsuga heterophylla
Pseudotsuga menziesii
Douglas fir 50%
Pseudotsuga menziesii
Toxicodendron diversilobum
Pacific poison oak 50%
Toxicodendron diversilobum
Persicaria lapathifolia
pale smartweed 50%
Persicaria lapathifolia
Eurybia radulina
roughleaf aster 50%
Eurybia radulina
Solanum americanum
little white nightshade 50%
Solanum americanum
Inula helenium
elecampane inula 50%
Inula helenium
Lupinus polyphyllus
bigleaf lupine 49%
Lupinus polyphyllus
Heracleum maximum
cow-parsnip 49%
Heracleum maximum
Lotus corniculatus
birdfoot trefoil 49%
Lotus corniculatus
Mentha pulegium
pennyroyal 49%
Mentha pulegium
Euphorbia peplus
petty spurge 49%
Euphorbia peplus
Tragopogon dubius
yellow salsify 49%
Tragopogon dubius
Helianthus tuberosus
Jerusalem artichoke 49%
Helianthus tuberosus
Solidago simplex
sticky goldenrod 49%
Solidago simplex
Erythranthe moschata
musk monkeyflower 49%
Erythranthe moschata
Mentha suaveolens
apple mint 49%
Mentha suaveolens
Rumex crispus
curly dock 49%
Rumex crispus
Persicaria hydropiperoides
mild waterpepper 49%
Persicaria hydropiperoides
Madia sativa
coast tarweed 49%
Madia sativa
Juncus effusus
soft rush 49%
Juncus effusus
Alnus rubra
red alder 49%
Alnus rubra
Conium maculatum
poison hemlock 49%
Conium maculatum
Rosa rubiginosa
sweetbrier rose 49%
Rosa rubiginosa
Acer macrophyllum
bigleaf maple 49%
Acer macrophyllum
Parmelia sulcata
hammered shield lichen 49%
Parmelia sulcata
Malus fusca
Oregon crabapple 49%
Malus fusca
Oxalis trilliifolia
great wood-sorrel 49%
Oxalis trilliifolia
Tripleurospermum inodorum
scentless mayweed 49%
Tripleurospermum inodorum
Vicia villosa
hairy vetch 49%
Vicia villosa
Chondrilla juncea
rush skeletonweed 49%
Chondrilla juncea
Stachys chamissonis
coastal hedgenettle 49%
Stachys chamissonis
Argentina anserina
silverweed 49%
Argentina anserina
Oemleria cerasiformis
Indian plum 49%
Oemleria cerasiformis
Geranium lucidum
shining geranium 49%
Geranium lucidum
Erigeron canadensis
horseweed 48%
Erigeron canadensis
Persicaria hydropiper
water-pepper 48%
Persicaria hydropiper
Oenanthe sarmentosa
water-parsley 48%
Oenanthe sarmentosa
Crepis capillaris
smooth hawksbeard 48%
Crepis capillaris
Quercus garryana
Oregon white oak 48%
Quercus garryana
Philadelphus lewisii
Lewis's mock orange 48%
Philadelphus lewisii
Abies grandis
grand fir 48%
Abies grandis
Ambrosia artemisiifolia
common ragweed 48%
Ambrosia artemisiifolia
Juglans regia
English walnut 48%
Juglans regia
Hypogymnia physodes
hooded tube lichen 48%
Hypogymnia physodes
Dysphania botrys
Jerusalem oak goosefoot 48%
Dysphania botrys
Lysimachia arvensis
scarlet pimpernel 48%
Lysimachia arvensis
Acer circinatum
vine maple 48%
Acer circinatum
Papaver somniferum
opium poppy 48%
Papaver somniferum
Prosartes smithii
largeflower fairybells 48%
Prosartes smithii
Geum urbanum
herb bennet 48%
Geum urbanum
Matricaria discoidea
disc mayweed 48%
Matricaria discoidea
Hibiscus trionum
flower-of-an-hour 48%
Hibiscus trionum
Silene latifolia
white campion 48%
Silene latifolia
Fallopia convolvulus
black bindweed 48%
Fallopia convolvulus
Lycopus uniflorus
northern bugleweed 48%
Lycopus uniflorus
Collomia grandiflora
grand collomia 48%
Collomia grandiflora
Epilobium brachycarpum
autumn willowherb 48%
Epilobium brachycarpum
Cannabis sativa
marijuana 48%
Cannabis sativa
Epilobium canum
California fuchsia 48%
Epilobium canum
Euonymus occidentalis
western burningbush 48%
Euonymus occidentalis
Ludwigia peploides
floating primrose-willow 47%
Ludwigia peploides
Solidago gigantea
late goldenrod 47%
Solidago gigantea
Scutellaria lateriflora
blue skullcap 47%
Scutellaria lateriflora
Goodyera oblongifolia
western rattlesnake plantain 47%
Goodyera oblongifolia
Fraxinus latifolia
Oregon ash 47%
Fraxinus latifolia
Tellima grandiflora
fragrant fringecup 47%
Tellima grandiflora
Hypericum calycinum
rose-of-sharon 47%
Hypericum calycinum
Eriophyllum lanatum
Oregon sunshine 47%
Eriophyllum lanatum
Eleocharis ovata
ovoid spike-rush 47%
Eleocharis ovata
Panicum capillare
witch grass 47%
Panicum capillare
Corylus cornuta
beaked hazelnut 47%
Corylus cornuta
Ribes sanguineum
red-flowering currant 47%
Ribes sanguineum
Corrigiola litoralis
strapwort 47%
Corrigiola litoralis
Senecio vulgaris
common groundsel 47%
Senecio vulgaris
Solanum rostratum
buffalo bur 47%
Solanum rostratum
Mollugo verticillata
green carpetweed 47%
Mollugo verticillata
Gnaphalium uliginosum
marsh cudweed 47%
Gnaphalium uliginosum
Cosmos bipinnatus
garden cosmos 47%
Cosmos bipinnatus
Circaea alpina
small enchanters nightshade 47%
Circaea alpina
Hesperis matronalis
dame's rocket 47%
Hesperis matronalis
Mentha spicata
spearmint 47%
Mentha spicata
Rosa pisocarpa
cluster rose 47%
Rosa pisocarpa
Humulus lupulus
common hop 47%
Humulus lupulus
Reseda lutea
wild mignonette 47%
Reseda lutea
Cyperus erythrorhizos
red-root flat sedge 47%
Cyperus erythrorhizos
Pilosella aurantiaca
orange hawkweed 47%
Pilosella aurantiaca
Fallopia baldschuanica
Chinese fleecevine 47%
Fallopia baldschuanica
Streptopus amplexifolius
clasping twisted-stalk 47%
Streptopus amplexifolius
Sambucus cerulea
blue elderberry 47%
Sambucus cerulea
Mentha arvensis
wild mint 47%
Mentha arvensis
Ranunculus flammula
greater creeping spearwort 47%
Ranunculus flammula
Polypodium glycyrrhiza
licorice fern 47%
Polypodium glycyrrhiza
Lysimachia latifolia
western starflower 47%
Lysimachia latifolia
Consolida ajacis
doubtful knight's spur 47%
Consolida ajacis
Veronica americana
American speedwell 47%
Veronica americana
Verbena hastata
blue vervain 47%
Verbena hastata
Glechoma hederacea
ground-ivy 47%
Glechoma hederacea
Gaillardia pulchella
firewheel 47%
Gaillardia pulchella
Pontederia crassipes
common water hyacinth 47%
Pontederia crassipes
Frangula purshiana
cascara buckthorn 46%
Frangula purshiana
Alcea rosea
hollyhock 46%
Alcea rosea
Linum usitatissimum
common flax 46%
Linum usitatissimum
Brassica nigra
black mustard 46%
Brassica nigra
Hieracium lachenalii
common hawkweed 46%
Hieracium lachenalii
Eleocharis obtusa
blunt spikerush 46%
Eleocharis obtusa
Cosmos sulphureus
sulphur cosmos 46%
Cosmos sulphureus
Lactuca biennis
tall blue lettuce 46%
Lactuca biennis
Ludwigia palustris
water purslane 46%
Ludwigia palustris
Stellaria media
common chickweed 46%
Stellaria media
Echinocystis lobata
wild cucumber 46%
Echinocystis lobata
Malva moschata
musk mallow 46%
Malva moschata
Mentha X piperita
peppermint 46%
Mentha X piperita
Tanacetum parthenium
feverfew 46%
Tanacetum parthenium
Verbena bonariensis
purpletop vervain 46%
Verbena bonariensis
Silene vulgaris
bladder campion 46%
Silene vulgaris
Rosa canina
dog rose 46%
Rosa canina
Tanacetum balsamita
costmary 46%
Tanacetum balsamita
Fuchsia magellanica
hardy fuchsia 46%
Fuchsia magellanica
Raphanus sativus
cultivated radish 46%
Raphanus sativus
Trifolium hybridum
alsike clover 46%
Trifolium hybridum
Raphanus raphanistrum
wild radish 46%
Raphanus raphanistrum
Eragrostis hypnoides
teal lovegrass 46%
Eragrostis hypnoides
Brassica rapa
field mustard 46%
Brassica rapa
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