Northern Prairie Wildlife Research Center
Southern Wetland Flora
Field Office Guide to Plant Species
Bignonia capreolata L.
- Family: Trumpet Creeper (Bignoniaceae)
- Flowering: April-June
- Field Marks: This vine is distinguished by its paired opposite leaflets and its 2 inch long
- Habitat: Thickets, moist woods, edges of swamps, stream banks, bayheads, bottomlands,
alluvial floodplains, bogs, fencerows.
- Habit: Woody vine, often climbing high in trees.
- Stems: Woody, up to 60 feet long, up to 4 inches in diameter.
- Leaves: Evergreen, opposite, divided into 2 leaflets and a terminal, branched tendril; each leaflet
oblong to ovate, pointed at the tip, more or less heart-shaped or auriculate at the base, up to 7
inches long, up to 3 inches wide.
- Flowers: 2-5 in a cluster; each flower on a stalk 1-2 inches long.
- Sepals: 5, united into a cup, the lobes very tiny.
- Petals: 5, united into a tube, up to 2 inches long, orange outside, yellow at the tips, reddish in
the throat inside.
- Stamens: 4, shorter than the tubular flower.
- Pistils: Ovary superior; stigma 2-cleft.
- Fruits: Capsules linear, very flat, up to 7 inches long; seeds broadly winged, papery, flat, up
to 1 1/2 inches wide.
- Notes: This species is sometimes placed in the genus Anisostichus. The cross-section of large
vines shows a dark cross in the middle, hence the name "crossvine."
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