Sunrise behind rosy paintbrush (split-leaf Indian paintbrush) (spliteaf Indian paintbrush) (Castilleja rhexifolia) and Alpine avens (Ross's avens) (Acomastylis rossii turbinata), San Juan National Forest, Colorado, United States of America, North America

Field of yellow dryad (yellow mountain-avens) (Dryas drummondii) in the seed-pod stage, Jasper National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

Alpine avens (Acomastylis rossii turbinata) above the clouds, Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America

Guest from the Lindblad Expedition ship National Geographic Explorer photographing mountain avens (Dryas octopetala) on open tundra in Svalbard, Norway

A close-up view of mountain avens (Dryas octopetala) on open tundra in Svalbard, Norway

A close-up view of mountain avens (Dryas octopetala) on open tundra in Svalbard, Norway

A close-up view of mountain avens (Dryas octopetala) on open tundra in Svalbard, Norway

Guest from the Lindblad Expedition ship National Geographic Explorer photographing mountain avens (Dryas octopetala) on open tundra in Svalbard, Norway

A close-up view of mountain avens (Dryas octopetala) on open tundra in Svalbard, Norway

A close-up view of mountain avens (Dryas octopetala) on open tundra in Svalbard, Norway

Guest from the Lindblad Expedition ship National Geographic Explorer photographing mountain avens (Dryas octopetala) on open tundra in Svalbard, Norway