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Warner Parks Nature Center, Nashville, Davidson County, Tennessee, US
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Potamogeton crispus, leaves, showing characteristic leaf mining of chironomids.
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Potamogeton pectinatus, gigantic form of Dudley, erect axis of plant, 5 feet 2 inches tall, bearing runner at base of stem. November.
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Elkmont Campground, Great Smoky Mountains National Park, Sevier County, Tennessee, US
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Warner Parks Nature Center, Nashville, Davidson County, Tennessee, US
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Potamogeton pectinatus. 41, Tubers of two successive seasons; 42, terminal portion of subterranean stem; 43, mature portion of rootstock; 44, spray showing fruiting spike and tuberous runners
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Elkmont Campground, Great Smoky Mountains National Park, Sevier County, Tennessee, US
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Warner Parks Nature Center, Nashville, Davidson County, Tennessee, US
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Elkmont Campground, Great Smoky Mountains National Park, Sevier County, Tennessee, US
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Warner Parks Nature Center, Nashville, Davidson County, Tennessee, US
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Elkmont Campground, Great Smoky Mountains National Park, Sevier County, Tennessee, US
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Warner Parks Nature Center, Nashville, Davidson County, Tennessee, US
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Percy Warner Park, Nashville, Davidson County, Tennessee, US
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Percy Warner Park, Nashville, Davidson County, Tennessee, US
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Augsburger Rd., Bluffton, Allen County, Ohio, US
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Augsburger Rd., Bluffton, Allen County, Ohio, US
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Plant collected 8/19/14, photographed later but not vouchered. Note flower in center plant and dorsal papules of this species. Associates: Wolffia columbiana and Lemna turionifera. Identifications verified by Wayne Armstrong.
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Augsburger Rd., Bluffton, Allen County, Ohio, US
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Montgomery Bell State Park, Dickson County, Tennessee, US
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Augsburger Rd., Bluffton, Allen County, Ohio, US
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Percy Warner Park, Nashville, Davidson County, Tennessee, US
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Percy Warner Park, Nashville, Davidson County, Tennessee, US
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Percy Warner Park, Nashville, Davidson County, Tennessee, US
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Percy Warner Park, Nashville, Davidson County, Tennessee, US