Northern Prairie Wildlife Research Center
Southern Wetland Flora
Field Office Guide to Plant Species
Passiflora lutea L.
- Family: Passion-flower (Passifloraceae)
- Flowering: June-September
- Field Marks: This vine is recognized by its 3-lobed, toothless leaves, tendrils, and intricate
pale yellow flowers.
- Habitat: Moist to dry soils in woodlands, bottomlands, slopes, thickets, roadsides.
- Habit: Climbing herbaceous vine with tendrils.
- Stems: Climbing or twining, bearing tendrils, smooth, up to 10 feet long.
- Leaves: Alternate, simple, broader than long, with 3 broad, blunt lobes, toothless, smooth, more
or less heart-shaped at the base, up to 3 inches long.
- Flowers: Solitary in the axils of the leaves, up to 1 inch across, pale yellow.
- Sepals: 5, green, united below, with very narrow lobes.
- Petals: 5, pale yellow, free from each other; numerous thread-like accessory parts present.
- Stamens: 5, united into a tube that shields the stalk of the ovary.
- Pistils: Ovary superior, stalked; styles 3.
- Fruits: Berries spherical, dark purple, up to 1/2 inch in diameter; seeds covered with a sweet,
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