Northern Prairie Wildlife Research Center
Western Wetland Flora
Field Office Guide to Plant Species
Barbarea orthoceras Ledeb.
- Family: Mustard (Cruciferae)
- Flowering: March-October
- Field Marks: This species is distinguished by its pale yellow petals, by some of its leaves pinnately divided with a very large terminal leaflet, and by its slender, ascending pods up to 2 inches long.
- Habitat: Along streams, wet meadows, around springs.
- Habit: Perennial herb with a thickened root.
- Stems: Upright, branched, stout, up to 1 1/2 feet tall, smooth, sometimes purple-tinged.
- Leaves: Basal and alternate, smooth, some of the basal leaves sometimes simple and
undivided, the rest of the leaves pinnately divided, the terminal leaflet often several times
larger than the other leaflets; uppermost leaves merely pinnately lobed.
- Flowers: Several in a terminal raceme; flower stalks rather thick, 1/8-1/4 inch long.
- Sepals: 4, yellow-green, free from each other, up to 1/8 inch long.
- Petals: 4, pale yellow, free from each other, up to 1/4 inch long.
- Stamens: 6.
- Pistils: Ovary superior, smooth.
- Fruits: Pods elongated, ascending, up to 2 inches long, up to 1/16 inch wide, smooth, with a short beak; seeds brown, about 1/24 inch long.
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