Ranunculus adoneus
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| Ranunculus adoneus | ||||||||||||
| A.Gray |
Ranunculus adoneus is a species of the buttercup family.
description
The stems are 9 to 25 inches high, erect and hairless. Each stem bears one to three flowers. The roots are slim and 0.8 to 1.4 millimeters thick. The basal leaves are permanent. Your leaf blade is 0.9 to 2.5 × 1.1 to 2.8 centimeters in size, circular to kidney-shaped and divided two to three times into linear segments. The leaf margin is whole, the leaf base blunt and the leaf ends of the segments pointed to tightly rounded. The flower stalk is hairless. The prescription is hairless. The sepals are 4 to 11 × 3 to 7 millimeters in size. Their underside is sparsely covered with colorless hair. The 5 to 10 petals are 8 to 15 × 8 to 19 millimeters in size. The nectar scale is hairless. The heads of the achenes are 6 to 12 × 5 to 9 millimeters in size and egg-shaped. The achenes are completely or almost hairless and 1.8 to 2.4 × 1 to 1.4 millimeters in size. The beak is 1.2 to 1.7 millimeters long, sublet and straight.
The number of chromosomes is 2n = 16
The species blooms from May to September.
Occurrence
Ranunculus adoneus is found in Colorado, Idaho, Montana, Nevada, Utah, and Wyoming. The species grows in the alpine and subalpine level on grassland at altitudes of 2500 to 4000 meters. It is usually found around melting snow deposits.
Systematics
Ranunculus adoneus was first described by Asa Gray in 1863 .
supporting documents
- Alan T. Whittemore: Ranunculus adoneus . In: Flora of North America. Vol. 3 . on-line
Web links
- Distribution map of Ranunculus adoneus in the Flora of North America