Northern Prairie Wildlife Research Center
Western Wetland Flora
Field Office Guide to Plant Species
Ranunculus eschscholtzii Schlecht.
- Family: Butter-cup (Ranunculaceae)
- Flowering: July-August
- Field Marks: This butter-cup has deeply 3-parted leaves, 5 yellow petals 1/4-1/2 inch long, an elongated, cylindrical fruiting head, and a very tiny achene with a slender beak.
- Habitat: Moist meadows, moist rocky areas.
- Habit: Perennial herb with a thickened crown and fibrous roots.
- Stems: Upright, usually unbranched, up to 1 foot tall, smooth.
- Leaves: Mostly basal with a few on the stem, circular in outline, deeply 3-parted, up to 1 1/2 inches wide; stalks up to 3 inches long.
- Flowers: 1-few at the tip of the stems, on stalks up to 4 inches long.
- Sepals: 5, yellow tinged with lavender, free from each other, 1/6-1/3 inch long, smooth or sparsely hairy.
- Petals: 5, yellow, free from each other, obovate, 1/3-1/2 inch long.
- Stamens: 20-40.
- Pistils: Many in an ovoid head, the ovaries superior.
- Fruits: Achenes many in an ovoid head 1/2-3/4 inch long, 1/4-1/3 inch thick, each
achene oblongoid, about 1/20 inch long, with a slender beak.
- Notes: The achenes are eaten by small animals.
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