Family: Asteraceae
A fast-growing vine that blankets trees, powerlines, and other structures. The common name, Mexican flame vine, is a tribute to its native range and for the bright red-orange flowers that bloom year-round. This vine is also native to Central and South America. It has been cultivated since at least 1940 in Hawaiʻi with one naturalization record for Hawaiʻi Island. This aggressive vine is difficult to contain in cultivation. It reproduces by vegetative clippings as well as by seed. Care should be taken when green waste contains Mexican flame vine.
Description and Dispersal:
- A climbing smooth stemmed vine that is slightly woody
- Alternately arranged arrow shaped leaves
- Prolific bloomer with brightly colored flowers that and range from red to orange
- Fruit resembles dandelions puffy seed head
- Seeds are wind dispersed
High Risk Traits:
- Elevation range exceeds 1000 m, demonstrating environmental versatility
- Thrives in tropical climates
- Naturalized on Hawaii and possibly Oahu (Hawaiian Islands), Puerto Rico, elsewhere in the Caribbean, possibly the Canary Islands, and adventive in Florida
- Regarded as aggressive, and potentially weedy in landscaping
- Handling may result in dermatitis and an itching rash
- Tolerates many soil types
- Climbing and smothering habit
- Reproduces by seeds and vegetatively by rooting stem fragments
- Able to reach maturity in <1 year
- Seeds dispersed by wind, and intentionally by people
- Able to resprout after cutting and severe pruning
Low Risk Traits:
- Unarmed (no spines, thorns, or burrs)
- Values as an ornamental, despite potential weediness
- Grows best in full sun; dense shade may inhibit or prevent spread
