Trumpet Vine, Trumpet Creeper, Cow Itch Vine, Hummingbird Vine
Kingdom: Plantae, Division: Angiosperms, Class: Eudicots, Order: Lamiales, Family: Bignoniaceae, Genus: Campsis, Species: Campsis radicans · Bignoniaceae (Bignonia or Trumpet Creeper family) · Odd-pinnately compound (typically 7 to 11 leaflets); deciduous
Species
Campsis radicans
Leaf Type
Odd-pinnately compound (typically 7 to 11 leaflets); deciduous
Family
Bignoniaceae (Bignonia or Trumpet Creeper family)
Shape
Leaflets are ovate to oblong-lanceolate with an acuminate (pointed) tip
Size
Individual leaflets are 1-4 inches long; the entire compound leaf can reach 10-15 inches in length
Margin
Coarsely serrate (large, sharp teeth along the edges)
Arrangement
Opposite; the compound leaves emerge in pairs along the stem
Rarity
Extremely Common; often considered aggressive or weedy in its native range due to rapid growth
Color & Pattern
Deep emerald green on the upper surface, slightly paler beneath; turns a dull yellow-green in autumn; nodes often show a reddish tint
Venation Pattern
Pinnate; prominent midrib on each leaflet with secondary veins reaching toward the teeth
Texture & Surface
Smooth (glabrous) and slightly shiny on top; sometimes features fine hairs on the veins underneath
Description
A vigorous, woody climbing vine known for its showy, trumpet-shaped orange to red flowers. It uses aerial rootlets to cling to surfaces, reaching heights of 30-40 feet. The foliage provides a dense, lush green screen throughout the summer.
Key Features
Opposite, pinnately compound leaves with serrated margins; reddish petioles; presence of aerial rootlets on older wood; distinctive 'trumpet' flowers
Habitat
Found in woodlands, riverbanks, and fence rows; very adaptable to various soils; thrives in full sun to partial shade
Geographic Range
Native to the Eastern United States; widely naturalized across North America and cultivated globally in temperate climates
Condition Notes
The specimen appears healthy with good turgor; some minor white environmental debris (possibly seed fluff or spider webbing) is visible on the leaf surface. Grade: Excellent
Interesting Facts
The name 'Cow Itch Vine' comes from the skin irritation the sap can cause. It is a primary food source for Ruby-throated Hummingbirds. It can be destructive to structures if allowed to grow on siding or masonry.
Medicinal & Uses
Primarily used in landscaping for erosion control or as an ornamental for pollinators. Historically, some Native American groups used certain parts for dermatological issues, though this is discouraged due to toxicity.
Ecological Role
Vital nectar source for hummingbirds and long-tongued bees; provides nesting cover for small birds; can be invasive in disturbed areas
Similar Species
Wisteria (margin is entire/smooth), Elderberry (different flower structure), and Poison Ivy (only three leaflets, not pinnate)
Foraging Tips
Look for the vine climbing telephone poles or trees in mid-summer to find the bright orange flowers. Wear gloves if pruning to avoid potential skin irritation from the sap.
Toxicity Warning
Moderately Toxic; the sap contains quinones that causes contact dermatitis (redness and itching) in many people. Ingestion can cause digestive upset. Keep away from livestock.