Acleisanthes lanceolata

A small shrub of gypsum flats. Common at White Sands. The yellow flowers are open at night, so far I've only seen them wilted and closed in the morning.

A flower bud at White Sands, 7/26/05.

Leaves at White Sands, 7/26/05.

Plant habit at White Sands, 7/26/05.