Ranunculus andersonii
| Ranunculus andersonii | ||||||||||||
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Ranunculus andersonii in Utah |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Ranunculus andersonii | ||||||||||||
| A. Gray |
Ranunculus andersonii is a species of the buttercup family.
description
The stems are erect or ascending, do not root at the nodes and are hairless. Tuberous roots are absent. The leaf blade of the basal leaves is 1.5 to 3.8 centimeters × 2.1 to 3.8 centimeters in size, heart-shaped in outline and composed of three single to double. The leaflets are two to three parts. The terminal leaflet is elliptical to linear, with entire margins or occasionally with individual teeth and with a blunt or pointed tip. The respectacle is stiff-haired. The sepals are 9 to 15 × 5 to 9 millimeters in size, hairless and spread out. The petals are 12 to 18 millimeters × 9 to 13 millimeters in size and pale pink-white. The fruiting heads are 13 to 27 × 21 to 29 millimeters in size, spherical or compressed-spherical. The pericarp is veined, puffed up and not winged. The fruit tube is 6 to 12 mm × 4 to 6 mm in size and hairless. The beak is 0.2 to 0.6 millimeters long, permanent and triangular or sub-like from a triangular base.
The species blooms from April to May.
Occurrence
The species occurs in western North America. The distribution area of Ranunculus andersonii includes Nevada, western Utah, eastern California, and southern Oregon and Idaho.
The species grows on slopes in from Sagebrush or jaw - and juniper -Gebüschen embossed vegetation at altitudes from 900 to 2300 meters.
Systematics
Ranunculus andersonii was first described by Asa Gray in 1867 .
supporting documents
- Alan T. Whittemore: Ranunculus andersonii . In: Flora of North America. Vol. 3 . on-line
Web links
- Distribution map of Ranunculus andersonii in the Flora of North America