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Red Alder (Alnus rubra)

1. Mature Red Alders in Full Foliage

Red Alder, Pacific Coast Alder, Oregon Alder, Western Alder (Alnus rubra) Family BETULACEAE The red alder is one of two species of alder common to the Gualala River watershed’s riparian corridors. [Photo: 1] It occurs in the western portion where it grows along the lower reaches of the river and its tributaries. Further east in the higher elevations, red alder …

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White Alder (Alnus rhombifolia)

1a. White Alders Growing Along Buckeye Creek in the Soda Springs Reserve

Like the closely related red alder, white alder is a species that grows along the riparian corridor and shares many of its adaptations to streamside conditions. [Photo: 1a, 1b]     In general it occurs more inland from the coast and in more upland areas than the red alder whose occurrence tapers off farther east in the watershed. According to …

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California Bay Laurel (Umbellularia californica)

1. Magnificent Bay Tree on Tin Barn Road

California Bay Laurel, Bay, Pepperwood, Oregon Myrtle, California Olive, Spice Tree, Headache Tree (Umbellularia californica) Family LAURACEAE February is an excellent time to see flowering California Bay Laurel, though it can bloom as early as November and well on into spring. One of the more commonly occurring trees throughout the Gualala River watershed [Photo 1.], this evergreen hardwood species has …

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Coast Redwood (Sequoia sempervirens)

1. Coast Redwood Reaching for the Light

genus  Sequoia, family Cupressaceae (cypress) An Unparalleled Species The most iconic tree species in our region is the Coast Redwood. [Photo 1.] Its presence in the Gualala River watershed is deeply historic, it is a species central to the ecology and economy here, and it is perhaps the most remarkable tree species on earth. Redwoods are the tallest beings on …

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Introduction: Native Trees of the Gualala River Watershed

Gualala River riparian forest

INTRODUCTION TO A NEW MONTHLY FEATURE: NATIVE TREES OF THE GUALALA RIVER WATERSHED January, 2018 Trees are the predominant terrestrial feature of the Gualala River watershed. They account for the largest biomass in the watershed and cover a third of its nearly 300 square miles. How we think about them–their beauty, their importance to the natural systems of the planet, …

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