Cistanthe umbellata (formerly Calyptridium umbellatum) is a species of flowering plant in the purslane family known by the common name Mount Hood pussypaws. It is native to western North America from British Columbia to California to Colorado, where it grows in a number of habitat types, including in areas inhospitable to many plant types, such as those with alpine climates. It is a perennial herb forming generally two or more basal rosettes of thick, spoon-shaped leaves each a few centimeters long. The inflorescence arises from the rosette, a dense, spherical umbel of rounded sepals and four small petals.
^ abThe name Cistanthe umbellata was published in Phytologia, 68(4): 268. 1990. New York. The basionym, Spraguea umbellata Torr., was first described and published in Smithsonian Contributions to Knowledge, 6(2): 4 (-5; t. 1). 1853. Washington, DC. "Plant Name Details for Cistanthe umbellata". IPNI. Retrieved August 18, 2010. nomenclatural synonym: Portulacaceae Spraguea umbellata Torr.