About Eremothera boothii (Douglas) W.L.Wagner & Hoch
Eremothera boothii is a species of wildflower commonly called Booth's evening primrose or Booth's sun-cup. It is native to the western United States and northwestern Mexico, and is most abundant in arid habitats such as deserts. This is an annual plant with hairy reddish-green stems and mottled foliage. The stem terminates in a nodding inflorescence holding many small flowers. Flower petals can range from white to red or yellowish, and often have darker coloring on the outer surfaces of the four spoon-shaped petals. The flowers have long stamens with clublike yellowish anthers. Unlike many other species formerly classified in Camissonia that open at dawn, flowers of this species typically open at dusk. Its fruit is a twisted capsule measuring 1 to 3 centimeters long. The appearance of the plant can vary between its subspecies, and several recognized subspecies exist: E. b. ssp. alyssoides, known as Pine Creek evening primrose or alyssum evening primrose; E. b. ssp. boothii; E. b. ssp. condensata, known as clustered suncup; E. b. ssp. decorticans, known as shredding suncup; E. b. ssp. desertorum, known as desert suncup; and E. b. ssp. intermedia.
