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| Pine Branches, Lake (Lake Lagunitas) - Marin County 2023 |
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| Horsetails, Leaves (Lake Lagunitas) - Marin County 2023 |
Horsetails:
Equisetum (horsetail, snake grass, puzzlegrass) is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds.
Equisetum is a "living fossil", the only living genus of the entire subclass Equisetidae, which for over 100 million years was much more diverse and dominated the understorey of late Paleozoic forests. . . . Modern horsetails first appeared during the Jurassic period.
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