Close up view Redwood sorrel (Oxalis oregana), moss, and sword ferns (Polystichum munitum) growing by a stream in the lush understory of Muir Woods Ca

---

Close up view Redwood sorrel (Oxalis oregana), moss, and sword ferns (Polystichum munitum) growing by a stream in the lush understory of Muir Woods California. Muir Woods is an old growth forest. Ferns, which reproduce via spores rather than seeds, are another ancient plant dating back 300 million years. Muir Woods is home to 13 species of fern. The Western sword fern (Polystichum munitum) is from the family Dryopteridaceae (Wood ferns).

---

Size: 4256px × 2832px
Photo credit: © Marianne A. Campolongo / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: beauty, bright, california, cover, cryptogam, ecology, fern, floor, forest, frond, green, ground, grow, growing, growth, habitat, leaves, lush, monument, moss, muir, munitum, national, nature, oregana, oxalis, park, pinnae, plant, plants, polystichum, pteridophyta, pteridophyte, rebirth, redwood, sori, sorrel, spring, springtime, stream, sword, swordlike, understory, water, western, woodland, woods