About Tiquilia nuttallii (Benth. ex Hook.) A.T.Richardson
Tiquilia nuttallii, with common names Nuttall's crinklemat, annual tiquilia, Nuttall sandmat, and Nuttall's coldenia, is an annual, subshrub-like plant in the family Ehretiaceae that grows in middle and higher elevation deserts. It occurs in western North America, ranging from central Washington to western Colorado, and covering northern California and northern Arizona. There is also a separate disjunct population located in Missouri. This species is a short, low-growing plant that seldom grows taller than 4 to 12 inches. Its flowers are five-lobed, and its leaves are small with ridges, which gives the plant its common name crinklemat.