There are five types of orange star flowers that all share the same basic characteristics. They are star-shaped flowers with bright orange petals and a bright yellow center that blooms at the top of a single stem. A single plant can produce multiple stems.
GardenGuide.com states that this tropical plant originates from South America and thrives best in a warm, moist indoor climate. It requires minimal care, including indirect light, evenly moist soil and repotting every spring.
The difference in the five types of orange star flowers is the size of the plant. The orange star tecoma can grow up to ten feet tall, while the orange star ornithgalum reaches a maximum height of only 12 inches.