365Caws is now in its 14th year of publication, and was originally intended to end after 365 days. It has sometimes been difficult for me to find new material, particularly during the winter months, but now as I enter my own twilight years, I cannot guarantee that I will be able to provide daily posts. It is my hope that along the way I may have inspired someone to a greater curiosity about the natural world. If so, I can rest, content in the knowledge that my work here has been done.
Tuesday, March 19, 2019
It's So Yew!
Day 157: It's so Yew! Taxus brevifolia, that is. This native shrub, known commonly as either Pacific Yew or Western Yew is dioecious in nature, which is to say that any given plant is either male or female. Pollen is produced by males; berries and seeds by females. Although the berries and seeds are poisonous, Pacific Yew is best known as the original source for the anti-cancer drug taxol. However, due to the relative scarcity of the tree, taxol is now produced synthetically. The needles somewhat resemble those of Western Hemlock, but the characteristic red heartwood gives Yew away. It can be seen where bits of the grey bark have been shed. Berries are red and round. Seed dispersal is performed primarily by birds, but Yew is also known to propagate by taking root where branches touch the ground (self-layering).
Labels:
Longmire,
MORA,
Pacific Yew,
Taxus brevifolia,
Western Yew
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