Jack Dykinga / Sunset light on twisted Saguaro cactus (Carnegiea gigantea) Sonoran Desert National Monument, Arizona, USA, April.
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Jack Dykinga / Prairie Sunflowers (Helianthus petiolaris) flowering on the dunes amid blue morning shadows, Great Sand Dunes National Monument, Colorado, USA.
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Jack Dykinga / Bristlecone pine (Pinus aristata var. longaeva) gnarled branches of an old tree, Bryce Canyon National Park, Utah, USA.
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Jack Dykinga / Flowering plants in dried out mud, including Yellow Beeplant (Cleome lutea) and Pretty Phacelia (Phacelia pulchella var. sabulonum) Factory Bench, Fremont, Utah, USA, May.
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Jack Dykinga / Twisted branch in pool in stone canyon, Coyote Buttes, Arizona, USA, April 1992.
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Jack Dykinga / Saguaro Cactus (Carnegiea gigantea) with flower cluster, Saguaro National Park, Tucson Mountain Unit, Arizona, USA, August.
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Jack Dykinga / Water lily (Nuphar variegatum) leaves, Seal Cove Pond, Acadia National Park, Maine, USA, November.
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Jack Dykinga / Canyon pool with Water Shamrocks (Marsilea mucronata) floating. Coronado National Forest, Peck Canyon, Atascosa Mountains, Arizona, November.
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Jack Dykinga / Glowing gases rising from Halemaumau Crater, Kilauea Caldera, in evening with Milky Way in the sky above. Hawaii Volcanoes National Park, Hawaii, August 2010.
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Jack Dykinga / Red oak (Quercus rubra) and lichen covered White pines (Pinus strobes) Red Lake Indian Reservation, Minnesota, USA, August.
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Jack Dykinga / Siberian candyflower (Montia parvifolia), Carpet red alder, (Alnus rubra) along Wolf Creek, Sinkyone State Park, Sinkyone Intertribal Wilderness, California, August.
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Jack Dykinga / Towering Coastal redwoods (Sequoia sempervirens) rising from forest understory of Wood sorrel (Oxalis), Prairie Creek Redwoods State Park, California, May.