Flag irises (Iris missouriensis). Photographed in the Sierra Nevada, USA.

---

Size: 4961px × 3508px
Photo credit: © BOB GIBBONS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alga, algae, america, american, biological, biology, botanical, botany, cyanobacteria, flora, foliose, fungi, fungus, green, hurricane, lichen, lichens, microbiological, mutualism, national, nature, north, olympic, park, plant, plants, ridge, rock, rocks, rocky, states, symbiosis, symbiotic, thamnolia, united, usa, vermicularis, washington, whiteworm, wild