Ipomoea lobata, the fire vine, firecracker vine or Spanish flag (formerly Mina lobata), is a species of flowering plant in the family Convolvulaceae, native to Mexico and Brazil.
Growing to tall, Ipomoea lobata is a perennial climber often cultivated in temperate regions as an annual. It has toothed and lobed leaves (hence lobata) and one-sided racemes of flowers, opening red and fading to yellow, cream and white. These colours are graded down the length of the flower spike. The effect is like a firework, hence one of its popular names "firecracker vine". The colours vaguely resemble the red and gold of Spain's national flag, hence its other common name "Spanish flag".
Ipomoea lobata requires a minimum temperature of , and a warm, sheltered spot in full sun (either equatorial-facing or west-facing). It has gained the Royal Horticultural Society's Award of Garden Merit.
It is closely related to two other popular, award-winning climbing plants, Ipomoea indica (blue dawn flower) and Ipomoea tricolor (morning glory).
The name "Spanish flag" is also used for Lantana camara, an ornamental shrub.