Eryngium pinnatisectum | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Apiales |
Family: | Apiaceae |
Genus: | Eryngium |
Species: | E. pinnatisectum
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Binomial name | |
Eryngium pinnatisectum |
Eryngium pinnatisectum is an uncommon species of flowering plant in the family Apiaceae, known by the common names Tuolumne eryngo and Tuolumne button celery. [2]
The annual or perennial herb is endemic to central California, within areas of Sacramento County, Amador County, Calaveras County, and Tuolumne County. [3]
It is known from the eastern Central Valley, and adjacent lower Sierra Nevada foothills. [2]
It is a plant of wetlands, in vernal pools, foothill oak woodland (Cismontane woodland), yellow pine forest (Lower montane coniferous forest), freshwater wetlands, and wetland- riparian habitats. [2]
Eryngium pinnatisectum is an erect perennial herb growing up to 0.5 metres (1.6 ft) tall. It has a thick, hairless pale green branching stem. [4]
The greenish-white leaves are long and very narrow, lance-shaped with several sharp lobes, reaching 30 centimeters long. [4]
The inflorescence is an array of spherical flower heads, each surrounded by sharp-pointed, narrow bracts with thickened edges. The pale greenish flowers in the globelike head bloom in white petals. [4] The blooming period is May to August.
The plant is a California Native Plant Society listed Endangered species. [3]