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Araneus trifolium
(Shamrock Orb-weaver)

Picture ID 192776

Picture of Araneus trifolium (Shamrock Orb-weaver)

Comments & ID Thoughts

No idea what kind of spider it is, but I found it on the batteries to Bluff Trail down to Marshal’s Beach in San Francisco. this is part of San Francisco’s Presidio.

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SoggyCoffee

It’s an orb weaver, not medically significant to humans. I could be wrong, but my guess is a shamrock spider aka Araneus Trifolium

https://spiderid.com/spider/araneidae/araneus/trifolium/

Additional Pictures

Picture of Araneus trifolium (Shamrock Orb-weaver) Enlarge Picture
Picture of Araneus trifolium (Shamrock Orb-weaver) Enlarge Picture
Picture of Araneus trifolium (Shamrock Orb-weaver) Enlarge Picture
Picture of Araneus trifolium (Shamrock Orb-weaver) Enlarge Picture