| aporocactus | (n) small genus of epiphytic cacti of Mexico, Syn. genus Aporocactus |
| barrel cactus | (n) a cactus of the genus Ferocactus: unbranched barrel-shaped cactus having deep ribs with numerous spines and usually large funnel-shaped flowers followed by dry fruits |
| cactus | (n) any succulent plant of the family Cactaceae native chiefly to arid regions of the New World and usually having spines |
| cactus mouse | (n) burrowing mouse of desert areas of southwestern United States, Syn. Peromyscus eremicus |
| cactus wren | (n) large harsh-voiced American wren of arid regions of the United States southwest and Mexico |
| christmas cactus | (n) epiphytic cactus of Brazilian ancestry widely cultivated as a houseplant having jointed flat segments and usually rose-purple flowers that bloom in winter, Syn. Schlumbergera baridgesii, Schlumbergera buckleyi |
| crab cactus | (n) South American jointed cactus with usually red flowers; often cultivated as a houseplant; sometimes classified as genus Schlumbergera, Syn. Schlumbergera truncatus, Zygocactus truncatus, Thanksgiving cactus |
| easter cactus | (n) spring-blooming South American cactus with oblong joints and coral-red flowers; sometimes placed in genus Schlumbergera, Syn. Schlumbergera gaertneri, Hatiora gaertneri |
| echinocactus | (n) any cactus of the genus Echinocactus; strongly ribbed and very spiny; southwestern United States to Brazil, Syn. barrel cactus |
| ferocactus | (n) genus of nearly globular cacti of Mexico and southwestern United States: barrel cacti, Syn. genus Ferocactus |
| genus echinocactus | (n) globular or cylindrical cacti; southwestern United States to Brazil |
| golden barrel cactus | (n) large cactus of east central Mexico having golden to pale yellow flowers and spines, Syn. Echinocactus grusonii |
| hedgehog cactus | (n) cactus of the genus Echinocactus having stout sharp spines |
| knowlton's cactus | (n) small clustering cactus of southwestern United States; a threatened species, Syn. Pediocactus knowltonii |
| melocactus | (n) genus of strongly ribbed globose or spheroid cacti of tropical South and Central America and the Caribbean, Syn. genus Melocactus |
| mistletoe cactus | (n) a plant of the genus Rhipsalis |
| myrtillocactus | (n) small genus of arborescent cacti of Mexico and Central America, Syn. genus Myrtillocactus |
| pediocactus | (n) low-growing cacti of the Great Plains of North America, Syn. genus Pediocactus |
| pitahaya cactus | (n) cactus of the southwestern United States and northern Mexico having edible juicy fruit, Syn. pitahaya, Acanthocereus pentagonus, Acanthocereus tetragonus |
| rainbow cactus | (n) a stout cylindrical cactus of the southwest United States and adjacent Mexico |
| rattail cactus | (n) commonly cultivated tropical American cactus having slender creeping stems and very large showy crimson flowers that bloom for several days, Syn. rat's-tail cactus, Aporocactus flagelliformis |
| zygocactus | (n) small genus of Brazilian cacti having flat fleshy usually branched joints and showy red or pink flowers followed by red fleshy fruits, Syn. genus Zygocactus |
| cactaceae | (n) constituting the order Opuntiales, Syn. family Cactaceae, cactus family |
| epiphyllum | (n) any cactus of the genus Epiphyllum having flattened jointed irregularly branching stems and showy tubular flowers, Syn. orchid cactus |
| garambulla | (n) arborescent cactus of western Mexico bearing a small oblong edible berrylike fruit, Syn. Myrtillocactus geometrizans, garambulla cactus |
| jewbush | (n) low tropical American shrub having powerful emetic properties, Syn. Pedilanthus tithymaloides, redbird cactus, Jew bush, Jew-bush, redbird flower |
| naboom | (n) small tree of dry open parts of southern Africa having erect angled branches suggesting candelabra, Syn. cactus euphorbia, Euphorbia ingens |
| ocotillo | (n) desert shrub of southwestern United States and Mexico having slender naked spiny branches that after the rainy season put forth foliage and clusters of red flowers, Syn. Jacob's staff, coachwhip, vine cactus, Fouquieria splendens |
| prickly pear | (n) cacti having spiny flat joints and oval fruit that is edible in some species; often used as food for stock, Syn. prickly pear cactus |
| russian thistle | (n) prickly bushy Eurasian plant; a troublesome weed in central and western United States, Syn. Salsola kali tenuifolia, Russian tumbleweed, tumbleweed, Russian cactus |
| barrel cactus | n.; pl. barrel cacti /plu>. any of several large cacti native to the southwestern U. S. and Mexico, having a short cylindrical form with deep vertical ribs and bearing sharp spines. They are classed in the genera Ferocactus and Echinocactus. [ PJC ] |
| Cactus | n. ; pl. E. Cactuses Cacti [ L., a kind of cactus, Gr. &unr_;&unr_;&unr_;&unr_;&unr_;&unr_;. ] (Bot.) Any plant of the order Cactacæ, as the prickly pear and the night-blooming cereus. See Cereus. They usually have leafless stems and branches, often beset with clustered thorns, and are mostly natives of the warmer parts of America. [ 1913 Webster ]
Cactus wren (Zoöl.), an American wren of the genus Campylorhynchus, of several species. [ 1913 Webster ]
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| Ferocactus | n. a genus of nearly globular cacti of Mexico and Southwestern U. S., including some of the barrel cacti.
Syn. -- genus Ferocactus. [ WordNet 1.5 ] |
| Myrtillocactus | prop. n. A small genus of arborescent cacti of Mexico and Central America.
Syn. -- genus Myrtillocactus. [ WordNet 1.5 ] |
