Alophia drummondii

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Alophia drummondii, commonly called propeller flower, is a flowering plant in the iris family (Iridaceae). It grows in parts of North and South America, from Arkansas and Oklahoma in the United States south to Mexico, with a separate population in Paraguay. It thrives in sandy soils of open prairies and woodlands, often along forest edges where some shade is present.

This herbaceous perennial has a bulb at its base. Its leaves are narrow and straplike, folded along the midrib. Each plant produces only a few flowers, and the blossoms last a single day. The tepals are dark purple with a yellow and reddish-brown base. It typically blooms from May to July.