BugwoodWiki Article

tall buttercup
Ranunculus acris L.

Overview

Appearance
Ranunculus acris is a short lived perennial herbaceous plant. The plant is erect, hairy, grows from 10-40 in. (25.4-101.6 cm) tall and has fibrous roots. R. acris is native to temperate Asia and Europe.
Foliage
Foliage is divided and pilose with long petioles. Basal leaf blades of R. acris have 3-5 deep lobes that are also divided. The overall shape is pentagonal about 0.7-2.0 by 1.0-3.9 in. (1.8-5.2 by 2.7-9.8 cm). It has toothed margins.
Flowers
R. acris flowers have shiny yellow petals up to 1.25 in. (3.2 cm) wide. Flowers have sepals about half the size of the petals. Flowers bloom from May-Oct.
Fruit
R. acris reproduces by seeds. Fruits are globose achenes 2-4 in. (5-10 cm) wide.
Ecological Threat
R. acris can be found invading wet lowlands, rich woodlands, pastures, meadows, and along roadsides and other disturbed sites. It prefers heavy, moist soils but can grow in sandy or gravelly soil where there is sufficient moisture.

Selected Images


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tall buttercup
Ranunculus acris
Plant(s)
Montana Statewide Noxious Weed Awareness and Education Program Archive
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tall buttercup
Ranunculus acris
Foliage
John Cardina
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tall buttercup
Ranunculus acris
Flower(s)
John Cardina
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tall buttercup
Ranunculus acris
Fruit(s)
John Cardina
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tall buttercup
Ranunculus acris
Flower(s)
John Cardina
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tall buttercup
Ranunculus acris
Plant(s)
John Cardina
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tall buttercup
Ranunculus acris
Foliage
John Cardina
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tall buttercup
Ranunculus acris
Plant(s)
Montana Statewide Noxious Weed Awareness and Education Program Archive
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tall buttercup
Ranunculus acris
Plant(s)
Montana Statewide Noxious Weed Awareness and Education Program Archive
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tall buttercup
Ranunculus acris
Plant(s)
Montana Statewide Noxious Weed Awareness and Education Program Archive
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tall buttercup
Ranunculus acris
Plant(s)
Montana Statewide Noxious Weed Awareness and Education Program Archive
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2154008

tall buttercup
Ranunculus acris
Flower(s)
Montana Statewide Noxious Weed Awareness and Education Program Archive

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Magnoliidae
Order: Ranunculales
Family: Ranunculaceae
Genus: Ranunculus

Other System Links

Plants: RAAC3
Bayer: RANAC
GRIN: 30810
ITIS: 18583
NPDN Pest: PEHAGBB

Synonyms and Other Names

Other Common Names:
meadow buttercup

Categories

Category: Forbs/Herbs