Ranunculus eschscholtzii
| Ranunculus eschscholtzii | |
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| Ranunculus eschscholtzii in Olympic National Park | |
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| Species: | R. eschscholtzii
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| Ranunculus eschscholtzii | |
Ranunculus eschscholtzii is a species of buttercup known by the common name Eschscholtz's buttercup.[1] [2]
The species name honors Johann Friedrich von Eschscholtz, an Imperial Russian botanist and entomologist active on the West Coast in the 1820s and 1830s.
Distribution
The plant is native to much of western North America from the Arctic northwestern Canada and Alaska to California and New Mexico. It grows in meadows and talus on high mountain slopes and other open rocky habitat.
Description
Ranunculus eschscholtzii is a perennial herb producing one or more erect stems up to 20 or 25 centimeters tall. The lower leaves have somewhat rounded blades each divided into a few lobes and borne on long petioles. Any upper leaves are smaller and not borne on petioles. The herbage is hairless and sometimes waxy in texture.
The inflorescence is made up of one to three flowers on narrow pedicels. The flower has five to eight oval or rounded shiny yellow petals up to 1.5 centimeters long each around a central nectary with many stamens and pistils.
The fruit is an achene borne in a cluster of 17 or more.
Varieties
- Ranunculus eschscholtzii var. eschscholtzii
- Ranunculus eschscholtzii var. oxynotus — endemic to the Sierra Nevada and Great Basin ranges in eastern California and western Nevada. [3]
- Ranunculus eschscholtzii var. suksdorfii — Suksdorf's buttercup, endemic to the Klamath Mountains. [4]
References
- ^ NRCS. "Ranunculus eschscholtzii". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 18 October 2015.
- ^ Flora of North America
- ^ Calflora: Ranunculus eschscholtzii var. oxynotus
- ^ Calflora: Ranunculus eschscholtzii var. suksdorfii
External links
- Calflora Database: Ranunculus eschscholtzii (Eschscholtz's buttercup)
- Jepson Manual eFlora (TJM2) treatment of Ranunculus eschscholtzii
- USDA Plants Profile for Ranunculus eschscholtzii (Eschscholtz's buttercup)
- Washington Burke Museum
- UC Photos gallery − Ranunculus eschscholtzii (Eschscholtz's buttercup)
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- Ranunculus
- Flora of the Northwestern United States
- Flora of the Southwestern United States
- Flora of Western Canada
- Flora of Alaska
- Flora of California
- Flora of New Mexico
- Flora of the Klamath Mountains
- Flora of the Rocky Mountains
- Flora of the Sierra Nevada (U.S.)
- Johann Friedrich von Eschscholtz
- Ranunculales stubs