Wright's Fishhook Cactus or sclerocactus wrightiae. This cactus is native to eastern Utah and southwestern Colorado.
The Uinta Basin Hookless Cactus or sclerocactus glaucus is native to northeast Utah and northwest Colorado.
Sclerocactus ("hard cactus", from Greek) is a genus of cacti. These species are very xerophytic. These types of cactus sometimes called 'fishhook' or 'mini barrels' have rigid stems with ribs. They are covered with spiny needles that come out of the aeroles and hook on the end. These cactus can often be found in higher elevation deserts such as the Colorado Plateau or the Great Basin. They are well suited to extremes due to very hot summers and below freezing winters. Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Divisions Green algae Chlorophyta Charophyta Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta—liverworts Anthocerotophyta—hornworts Bryophyta—mosses Vascular plants (tracheophytes) †Rhyniophyta—rhyniophytes †Zosterophyllophyta—zosterophylls Lycopodiophyta—clubmosses †Trimerophytophyta—trimerophytes Pteridophyta—ferns and horsetails Seed plants (spermatophytes) †Pteridospermatophyta—seed ferns Pinophyta—conifers Cycadophyta—cycads Ginkgophyta—ginkgo Gnetophyta—gnetae Magnoliophyta—flowering plants... Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also called angiosperms) are the dominant and most familiar group of land plants. ... Orders See text. ... Families Achatocarpaceae Aizoaceae (Fig-marigold family) Amaranthaceae (amaranth family) Ancistrocladaceae Asteropeiaceae Barbeuiaceae Basellaceae (basella family) Cactaceae (cactus family) Caryophyllaceae (carnation family) Dioncophyllaceae Droseraceae (sundew family) Drosophyllaceae Frankeniaceae Molluginaceae (carpetweed family) Nepenthaceae Nyctaginaceae (four-oclock family) Physenaceae Phytolaccaceae (pokeweed family) Plumbaginaceae (plumbago family) Polygonaceae (buckwheat family) Portulacaceae (purslane family) Rhabdodendraceae... Genera See Taxonomy of the Cactaceae A cactus (plural cacti, cactuses or cactus) is any member of the succulent plant family Cactaceae, native to the Americas. ... Genera See Taxonomy of the Cactaceae A cactus (plural, cacti or cactuses) is a type of (usually) succulent plant belonging to the dicotyledonous flowering plant family, Cactaceae. ... Cacteae is a tribe of plants belonging to the family Cactaceae. ... Nathaniel Lord Britton (1859 - 1934) was a US botanist and taxonomist who founded the New York Botanical Garden in Bronx, New York. ... Joseph Nelson Rose ( January 11, 1862 - May 4, 1928 ) was a American botanist. ... In biology, a species is one of the basic units of biodiversity. ... Genera See Taxonomy of the Cactaceae A cactus (plural cacti, cactuses or cactus) is any member of the succulent plant family Cactaceae, native to the Americas. ... For other uses of the word, please see Genus (disambiguation). ... Genera See Taxonomy of the Cactaceae A cactus (plural cacti, cactuses or cactus) is any member of the succulent plant family Cactaceae, native to the Americas. ... A xerophyte is a plant that survives or thrives in areas with very little free moisture. ... The Colorado Plateau, also called the Colorado Plateaus Province, is a physiographic region of the Intermontane Plateaus, roughly centered on the Four Corners region of the southwestern United States. ... Drainage map showing the Great Basin in orange Various Definitions of the Great Basin (NPS) The Great Basin is a large, arid region of the western United States. ...
The following genera have been brought into synonymy with Sclerocactus: In scientific classification, synonymy is the existence of multiple systematic names to label the same organism. ...
The genus Ancistrocactus, including plants formerly placed in the obsolete genus Glandulicactus, as well as the still not forgotten Hamatocactus, is now considered to be just a part of Sclerocactus.
Ancistrocactus uncinatus, from north-east Mexico, grows into a larger plant, up to a foot tall, with more central spines, more symmetrically arrayed and better suited for defense than concealment.
Ancistrocactus scheerii, with a pleasing symmetry to its arrangement both of radial spines and its mix of upward and downward facing centrals, resembles its Sclerocactus relatives more than the other species.
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