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Sabino Canyon Volunteer Naturalists

Experience is the best teacher

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Tumamoc Globeberry
Photo by Mark Hengesbaugh

Tumamoc Globeberry

Tumamoca macdougallii Rose

  • Content: Mark Hengesbaugh
  • Photo: Mark Hengesbaugh

Sabino, a refuge for Tumamoc globeberry…

Biologist Frank Reichenbacher points to Tumamoc globeberry (Tumamoca macdougallii Rose), an uncommon vine in the melon and gourd family, growing on the east side of Sabino Creek. Reichenbacher, a volunteer, is the leading expert on this root perennial that in 1986 was only known to grow in a few refuges including Sabino Canyon, the Painted Hills, and Tumamoc Hill and so was listed as an Endangered Species. During decades of scouting Reichenbacher discovered additional populations in southern Arizona and Sonora, Mexico, and in 1993 Tumamoc globeberry was delisted. Today it is a species of conservation concern in the county’s Sonoran Desert Conservation Plan.

Tumamoc globeberry reproduces very slowly, said Reichenbacher. Typically he’ll find only a few seedlings in a decade—always in proximity to a mature plant. This leads him to wonder if the seed-bearing fruits are not dispersed by wildlife. Nevertheless, “In Sabino Canyon they’re undergoing a min-boom. I found 20 new seedlings last year.”

Class: Plants

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5700 N Sabino Canyon Road
Tucson, AZ 85750

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