Each flower has five uneven sepals and five yellow petals usually with a dark red spot near the base; the flowers are cleistogamous, and the petals fall off after only a few hours.
Each flower has five uneven sepals and five yellow petals usually with a dark red spot near the base. The flowers are cleistogamous, producing little pollen and no nectar, and attracting few insect visitors, and the petals fall off after only a few hours.