San Francisco Botanical Garden

Flowers of Ribes sanguineum var. glutinosum

Ribes sanguineum var. glutinosum

Published by Daniel Mosquin on March 12, 2015

It is spring, it is spring! How do I know? I know that spring has arrived, because the red flowering currant (Ribes sanguineum) is blooming. Welcome to the world of phenology, where seasonal changes in the natural world occur in a fairly reliable sequence. By paying attention to these changes, we can learn more about […]

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Australian tree fern, or Cyathea cooperi

Cyathea cooperi

Published by Daniel Mosquin on February 6, 2015

Cyathea cooperi is commonly known as Australian tree fern, lacy tree fern, scaly tree fern or Cooper’s tree fern. Among leptosporangiate ferns (the class Polypodiopsida or Pteridopsida, whose spores originate from a single epidermal cell–most ferns), the tree ferns form their own order, the Cyatheales. In other words, the tree ferns form a distinct group, […]

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Flowers of Arctostaphylos pajaroensis

Arctostaphylos pajaroensis

Published by Daniel Mosquin on November 16, 2006

I told myself that I needed to avoid photographs of California and its flora for at least a week or so, since I’ve been fairly California-centric lately – but one more won’t hurt before I start that.

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