Northern Prairie Wildlife Research Center
Western Wetland Flora
Field Office Guide to Plant Species
Small Enchanter's Nightshade
Circaea alpina L.
- Family: Evening-primrose (Onagraceae)
- Flowering: June-August
- Field Marks: This species is recognized by its flowers which have 2 sepals, 2 notched white petals, 2 stamens, and an inferior ovary. The small capsule is covered with hooked hairs.
- Habitat: Moist woods.
- Habit: Perennial herb from a tuberous rootstock.
- Stems: Upright, unbranched, up to 2 feet tall, usually with a few appressed hairs.
- Leaves: Opposite, simple, ovate, up to 3 inches long, pointed at the tip, rounded or heart-shaped at the base, with or without teeth, smooth or sparsely hairy; leaf stalks 1-1 1/2 inches long.
- Flowers: Few in a raceme, without bracts.
- Sepals: 2, green, free from each other, about 1/24 inch long.
- Petals: 2, white, free from each other, notched, about 1/24 inch long.
- Stamens: 2.
- Pistils: Ovary superior.
- Fruits: Capsules obovoid, up to 1/12 inch long, covered with hooked hairs.
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