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Arisaema triphyllum (L.) Schott (Jack-in-the-pulpit), flowerhead May 1 1974
Shouba, Jack
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Asclepias syriaca (common milkweed), close-up of seeds with hairs dispersing from follicleShouba, Jack
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Asclepias syriaca (common milkweed), close-up of split follicles with seeds and hairsShouba, Jack
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Asclepias syriaca (common milkweed), close-up of seeds with hairs dispersing from follicleShouba, Jack
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Doellingeria umbellata (Mill.) Nees (flat-topped aster), flowersAugust 1985
Shouba, Jack
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Symphyotrichum drummondii var. drummondii (Drummond's aster), flowersNovember 1976
Shouba, Jack
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Baptisia australis (L.) R. Br. ex Ait. f. (blue false indigo), flowers and leaves on stemsShouba, Jack
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Populus deltoides (eastern cottonwood), leaves on young treeOctober 2001
Shouba, Jack
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Actaea pachypoda Elliott (white baneberry), fruit
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Aesculus hippocastanum L. (horse-chestnut), leaves, upper surfaceSeptember 1982
Shouba, Jack
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Alliaria petiolata (Bieb.) Cavara & Grande (garlic-mustard), flowers and leaves
Shouba, Jack
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Amorpha canescens Pursh (leadplant), close-up of flower spike and foliageAugust 1981
Shouba, Jack