Northern Prairie Wildlife Research Center
Western Wetland Flora
Field Office Guide to Plant Species
Trifolium wormskioldii Lehm.
- Family: Pea (Leguminosoe)
- Flowering: May-October
- Field Marks: The nearly round heads of white and purple flowers are subtended by a flat, lobed and toothed bract. There are creeping rhizomes present.
- Habitat: Most moist areas.
- Habit: Perennial herb with creeping rhizomes.
- Stems: Spreading, branched, up to 1 foot long, smooth.
- Leaves: Alternate, divided into 3 leaflets; leaflets oblanceolate to obovate, rounded at the tip and at the base, up to 1 1/2 inches long, toothed, smooth; leaf stalks up to 3 inches long; leaflets sessile or nearly so; stipules lanceolate, deep
- Flowers: Many in rounded heads up to 1 1/2 inches in diameter, white and purple, each
head on a stalk up to 2 1/2 inches long and subtended by a lobed and toothed bract, the
bract up to 3/4 inch across and flat.
- Sepals: 5, green, united to form a tube, up to nearly 1/2 inch long, the 5 awn-like teeth longer than the tube, smooth.
- Petals: 5, white and purple, arranged in the shape of a sweetpea flower, up to 1/2 inch long.
- Stamens: 10.
- Pistils: Ovary superior, smooth.
- Fruits: Pods ovoid, smooth, with 2-6 seeds.
- Notes: Deer browse on this species.
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