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Taxon  Report  
Tolmiea menziesii  (Pursh) Torr. & A. Gray
Pig a back plant,   Youth on age
Tolmiea menziesii is a perennial herb that is native to California, and also found elsewhere in western North America.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
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Bloom Period
Genus: Tolmiea
Family: Saxifragaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Redwood Forest, Douglas-Fir Forest, Red Fir Forest, Mixed Evergreen Forest, wetland-riparian
Name Status:
Accepted by PLANTS

Alternate Names:
PLANTSTiarella menziesii
Information about  Tolmiea menziesii from other sources
Nursery availability from CNPLX
This plant is available commercially.
USDA PLANTS Profile (TOME)

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ID Tips on PlantID.net

[Wikipedia] Reproductive Habits, Crushed Leaf Odor, Taxonomy: It has unusual reproductive habits. It grows plantlets from the petiole near the base of each leaf. The plantlets drop off, fall in the soil, and take root there.[5] It will also reproduce by rhizomes and by seeds. Crushing the leaves of this plant releases a strong cucumber-like odour. (2E,6Z)-2,6-nonadienal was identified as the source of this odor. In nature, banana slugs, Ariolimax columbianus, are selective in their diet and were not observed to feed on this plant. In a feeding experiment, the slugs rejected lettuce leaves that had been treated with (2E,6Z)-2,6-nonadienal. [6] Taxonomy The genus was named after the Scottish-Canadian botanist William Fraser Tolmie, while the species name refers to Archibald Menzies, the Scottish naturalist for the Vancouver Expedition (1791 to 1795). The plant was formerly considered to be the only member of a monotypic genus until diploid populations (due to autopolyploidy) were split off as a separate species T. diplomenziesii from the tetraploid populations.[7][8] Cultivation Tolmiea menziesii is commonly cultivated as an ornamental plant, for use as a house plant or planted as a groundcover in gardens.[9] It requires moisture and does not tolerate much sun or dryness. (contributed by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/18/2024).