WordNet sense 1 (wildflower having vibrant deep pink tubular evening-blooming flowers; found in sandy and desert areas from southern California to southern Colorado and into Mexico):

desert four o'clock, Colorado four o'clock, Mirabilis multiflora

WordNet sense 2 (leafy wildflower having fragrant slender white or pale pink trumpet-shaped flowers; southwestern United States and northern Mexico):

sweet four o'clock, Mirabilis longiflora