Cistanthe Spach, 1836.
* Calyptridium Nutt.
* Hershkovitz, M.A. 1991. Phylogenetic assessment and revised circumscription of Cistanthe Spach (Portulacaceae). Annals of the Missouri Botanical Garden 78(4): 1009-1021.
Cistanthe is a plant genus which includes most plants known as pussypaws. These are small, succulent flowering plants which often bear brightly colored flowers, though they vary quite a bit between species in appearance. Some species have flowers that are tightly packed into fluffy-looking inflorescences, the trait that gives them their common name. Many are adapted to arid environments, with some able to withstand climates that almost completely lack rainfall. Cistanthe was a genus created to segregate several species previously classified in Calandrinia. Several species from other closely related genera have been moved into Cistanthe as well.
* Cistanthe amaranthoides
* Hershkovitz, M. A. (1991). Phylogenetic assessment and revised circumscription of Cistanthe Spach (Portulacaceae). Annals of the Missouri Botanical Garden 78(4) 1009-21
Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License