Stansbury Cliffrose. Purshia stansburiana, Rose Family ( Rosaceae ), Stansbury Cliffrose. Also called:Cowania mexicana, Cowania stansburnia, Cowania mexicana var. stansburiana, Purshia mexicana, Purshia mexicana var. stansburiana. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. Stansbury Cliffrose shrubs ares often covered with many flowers that smell delightful. They attract bees. Stansbury Cliffrose is a many-branched shrub that grows up to 8 feet tall. In some excellent growing locations the shrubs can reach 20 feet high. In older shrubs, the bark splits into long, fine segments. Leaves are tiny, 1/8- to 5/8 inches long, and are mostly 5-lobed. The leaves are covered with tiny, glandular-dotted hairs that are sticky to the touch. When the seeds mature, they have a long-tailed hair that attaches to the seed. These hairs aid in wind dispersal and in helping to "drill" the seeds into the ground. Flowering Stansbury Cliffrose bloom from midspring until summer, and then if summer rains are plentiful, the plants may bloom again in the late summer. Early pioneers called the plant "quinine bush" after the bitter taste of the leaves. Deer forage on the plants and rodents eat the seeds. Purshia stansburiana was at first named Cowania stansburiana by John Torrey in 1852, it was renamed Cowania mexicana by Jepson in 1925, it went through a number of other name changes, and since 1986, it has retained the name Purshia stansburiana, given to it by Henrickson. Quick Notes: Height: About 8' - 20' Tall. Trunk: Up To About 10 inches thick. Bark: The bark is a light grey. Flowers: Flowers whitish in color and are 1/2 up to 1 inch wide. The five petals have yellow stamens. Flowering Time: May and August - September. Fruit: The Seeds are plumed and spiral. Leaves: Leaves are small, dark green, shiny and have good fall color. P. stansburiana leaves have three lobes at the apex and one more lobe on each side below the apex. The leaves of P. stansburiana have a definite odd, quinine-like odor when crushed and often have white gland dots along the leaf margin. Found: Native to the USA (AZ, CA, CO, ID, NM, NV, UT). Also found in Mexico in northern Sonora, northern Chihuahua, Baja Norte, & Baja California. Hardiness: USDA Zone 3a: to -39.9 �C (-40 �F) USDA Zone 3b: to -37.2 �C (-35 �F) USDA Zone 4a: to -34.4 �C (-30 �F) USDA Zone 4b: to -31.6 �C (-25 �F) USDA Zone 5a: to -28.8 �C (-20 �F) USDA Zone 5b: to -26.1 �C (-15 �F) USDA Zone 6a: to -23.3 �C (-10 �F) USDA Zone 6b: to -20.5 �C (-5 �F) USDA Zone 7a: to -17.7 �C (0 �F) USDA Zone 7b: to -14.9 �C (5 �F) USDA Zone 8a: to -12.2 �C (10 �F) USDA Zone 8b: to -9.4 �C (15 �F) USDA Zone 9a: to -6.6 �C (20 �F) Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) Sun Exposure: Full Sun Elevation: 3,500 - 8,000 Feet. Habitat: Dry and rocky slopes, mostly in pinyon - juniper woodland, desert mountains. Miscellaneous: Photos Taken September 01, 2009. Walnut Canyon National Monument Sinagua Ruins, Flagstaff, Arizona.

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