African lily

Wiktionary

1. n. A plant of the species Agapanthus umbellatus having a short stem bearing a tuft of long, narrow, arching leaves 1/2 to 2 ft. long and a central flower stalk 2 to 3 ft. high, ending in an umbel of bright blue, funnel-shaped flowers.

GNU Webster's 1913

1. n. (Bot.) the blue-flowered Agapanthus umbellatus.

WordNet 3.0

1. n. African plant with bright green evergreen leaves and umbels of many usually deep violet-blue flowers