Ranunculus abortivus
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Ranunculus abortivus |
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Ranunculus abortivus is a species of the buttercup family.
description
The stems are 10 to 60 centimeters long, erect or almost erect and hairless. There are 3 to 50 flowers on each stem . The roots are 0.5 to 1.5 millimeters thick, thread-like and occasionally widened at their base. The basal leaves are permanent. Their leaf blades are 1.4 to 4.2 inches long and 2.5 to 2 inches wide, kidney-shaped to circular and undivided. However, sometimes the innermost can be tripartite or trilobed. The leaf base is slightly to strongly heart-shaped, the leaf edge is very weak and rounded, notched to lobed-notched, the tip is rounded to blunt-rounded. The flower stalk is hairless or almost hairless, the flower base thinly to very thinly haired. The sepals are 2.5 to 4 millimeters long, 1 to 2 millimeters wide and hairless on the underside. The five petals are 1.5 to 3.5 millimeters long and 1 to 2 millimeters wide. The scale of the nectar gland is hairless. The heads of the achenes are 3 to 6 millimeters long, 2.5 to 5 millimeters wide and egg-shaped. The achenes are hairless and 1.4 to 1.6 millimeters long and 1 to 1.5 millimeters wide. The beak is 0.1 to 0.2 millimeters long, awl-shaped and curved.
The number of chromosomes is 2n = 16.
The flowering period extends from late winter (March) to summer (July).
Occurrence
Ranunculus abortivus is found in Canada and the United States of America. The species is absent in the far north (most of Alaska with the exception of the Kenai Peninsula, Yukon, the Northwest Territories, and Nuvatu, and northern parts of Alberta, Saskatchewan, Manitoba, Ontario, Quebeck, and Newfoundland and Labrador), a large area in the southwest (the boundary of the area runs through British Columbia, Washington, Idaho, Montana, Wyoming, Colorado, Nebraska, Kansas, Oklahoma and Texas) and a smaller area in the southeast (most of Florida and the southeast of Georgia and South Carolina ). A disjoint occurrence exists in northern New Mexico.
The species grows in forests, on grassland, on fallow land and on clearcuts at altitudes from 0 to 3100 meters.
Systematics
Ranunculus abortivus was first described by Carl von Linné in 1753 .
use
Indian tribes used Ranunculus abortivus for various medicinal purposes.
supporting documents
- Alan T. Whittemore: Ranunculus abortivus . In: Flora of North America. Vol. 3 . on-line
Web links
- Distribution map of Ranunculus abortivus in the Flora of North America
- Drawing of Ranunculus abortivus in the Flora of North America