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Mahonia nervosa (Pursh) Nutt. (Cascades grape-holly), a few leaflets with insect damage, developing fruitsCoulter, Ronald M.
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Anemone occidentalis S.Watson (white pasqueflower), close-up of bud, stem and leavesCoulter, Ronald M.
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Platanus occidentalis (sycamore), trunks, branches, and autumn leavesNovember 1968
Coulter, Ronald M.
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Quercus rubra (northern red oak), tree trunk and barkNovember 1968
Coulter, Ronald M.
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Quercus rubra (northern red oak), tree trunk and barkNovember 1968
Coulter, Ronald M.
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Populus deltoides (eastern cottonwood), bare twigs and branchesNovember 1968
Coulter, Ronald M.
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Anemone occidentalis S.Watson (white pasqueflower), close-up of flowerJune 23 1970
Coulter, Ronald M.
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Aquilegia formosa Fisch. ex DC. (Western columbine), close-up of flowerJuly 10 1970
Coulter, Ronald M.
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Arctostaphylos nevadensis A.Gray (pinemat manzanita), branches with fruit and leaves August 1971
Coulter, Ronald M.
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Antennaria Gaertn. (pussytoes), close-up of pistillate flowerAugust 21 1971
Coulter, Ronald M.
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Anaphalis margaritacea (L.) Benth. & Hook.f. (pearly everlasting), habitSeptember 7 1971
Coulter, Ronald M.
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Thalictrum thalictroides (L.) Eames & Boivin (rue anemone), close-up flowersMay 18 1972
Coulter, Ronald M.
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Thalictrum thalictroides (L.) Eames & Boivin (rue anemone), close-up of flowersMay 18 1972
Coulter, Ronald M.
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Callitropsis nootkatensis (Alaska-cedar), habit, summerJuly 7 1972
Coulter, Ronald M.
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Abies amabilis (Dougl.) Forbes (Pacific silver fir), barkSeptember 1972
Coulter, Ronald M.
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Abies amabilis (Dougl.) Forbes (Pacific silver fir), branch tip, needlesSeptember 1972
Coulter, Ronald M.
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Abies amabilis (Dougl.) Forbes (Pacific silver fir), needlesSeptember 1972
Coulter, Ronald M.
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Abies lasiocarpa (Hook.) Nutt. (subalpine fir), branchSeptember 1972
Coulter, Ronald M.