Is yellow elder unisexual or bisexual?

Yellow elder, also known as Tecoma stans, is typically considered bisexual because its flowers contain both male (stamens) and female (pistil) reproductive structures. This allows the plant to produce seeds through self-pollination or cross-pollination with other flowers. However, variations can occur in different populations, leading to some instances of unisexual flowers. Overall, the predominant form is bisexual.