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Amaranthus retroflexus L. (redroot pigweed), close-up of inflorescence with leaves and stemMarch 1979
Kohout, Kitty
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Arabis perstellata var. shortii (Short's false rockcress), flowers on stemMarch 1979
Kohout, Kitty
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Arabis perstellata var. shortii (Short's false rockcress), flowers and leaves on stemApril 1977
Kohout, Kitty
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Aralia nudicaulis L. (wild sarsparilla), flowers and leaves March 1979
Kohout, Kitty
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Arenaria serpyllifolia (Thyme-leaved Sandwort), stem with leaves and budsMarch 1979
Kohout, Kitty
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Minuartia stricta (Sw.) Hiern (bog stitchwort), habit, flowersJanuary 1978
Kohout, Kitty
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Moehringia lateriflora (L.) Fenzl (bluntleaf sandwort), flower, buds, and leaves January 1978
Kohout, Kitty
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Arctium minus (Hill) Bernh. (common burdock), burrs on stemAugust 1972
Kohout, Kitty
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Arctostaphylos uva-ursi (L.) Spreng. (bearberry), fruit and leavesMarch 1979
Kohout, Kitty
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Argemone polyanthemos (Fedde) G.B. Ownbey (prickly poppy), flowers on stemsMay 1973
Kohout, Kitty
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Arisaema triphyllum (L.) Schott (Jack-in-the-pulpit), flower heads
January 1978
Kohout, Kitty
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Aristida purpurascens Poir. (arrowfeather threeawn), leavesMarch 1979
Kohout, Kitty
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Aronia melanocarpa (Michx.) Elliott (black chokeberry), leavesOctober 1978
Kohout, Kitty
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Aronia melanocarpa (Michx.) Elliott (black chokeberry), leaves on twigsApril 1978
Kohout, Kitty
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Asclepias hirtella (Pennell) Woodson (tall green milkweed), flowersMarch 1979
Kohout, Kitty
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Asclepias hirtella (Pennell) Woodson (tall green milkweed), flowers and flower budsAugust 1972
Kohout, Kitty
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Asclepias incarnata L. (swamp milkweed), flowers and leavesAugust 1971
Kohout, Kitty
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Asclepias incarnata L. (swamp milkweed), flowers and leavesMarch 1979
Kohout, Kitty
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Carpinus caroliniana subsp. virginiana (American Hornbeam), flower, staminate, pistillate1979
Kohout, Kitty
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Asclepias meadii Torr. ex Gray (Mead's milkweed), flower headMarch 1979
Kohout, Kitty
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Asclepias sullivantii Engelm. ex Gray (Sullivant's milkweed), flowers and leavesMarch 1979
Kohout, Kitty