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California Manroot, Marah fabaceus

JimBotanical ObservationsApril 19, 20160 Likes

California Manroot, Marah fabaceus

The California Manroot, Marah fabaceus, is a fascinating plant we find here in the Sierra foothills. A native vine, it produces a distinctive seed pod, covered in spines. Below are photos of the fruit, showing the seeds it produces. It appears to me that the fruit bursts open due to gas pressure inside. I failed to witness the actual opening, but shortly afterwards, I heard the seed pod release gas. This pod produced 17 seeds.

Click on an image to enlarge it.

California Manroot, Marah fabaceus

Spiny fruit of California Manroot, Marah fabaceus, after the seed pod has burst open. 16 April 2016. Sonora California.

California Manroot, Marah fabaceus

The seeds, 17 total, from one spiny fruit of the California Manroot, Marah fabaceus. 16 April 2016. Sonora California.

California Manroot, Marah fabaceus

Close-up view of seeds within the spiny fruit of California Manroot, Marah fabaceus, after the seed pod had burst open. 16 April 2016. Sonora California.

California Manroot, Marah fabaceus

Side view of spiny fruit of California Manroot, Marah fabaceus, after the seed pod has burst open. 16 April 2016. Sonora California.

California Manroot, Marah fabaceus

View of seeds within the spiny fruit of California Manroot, Marah fabaceus, after the seed pod has burst open. 16 April 2016. Sonora California.

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Jim

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