Astrophytum asterias Lemaire (celebrity cactus) is a tiny, spineless cactus. Each plant typically has a single reduced, dome-shaped stem that becomes flat or depressed throughout dry problems. In the wil celebrity cactus expands to 7 cm high and also 15 cm in diameter. Plants are environment-friendly to grayishgreen or goldish brownish, formed with creamy colored to yellowish round scales.Each generally has 8 triangular ribs divided by slim grooves. The areoles comply with a main line down each rib, birthing tufts of short, whitish hairs.Endangered Species (CITES) Appendix. Star cactus is an extremely prominent enthusiast's thing. Even though it is conveniently expanded from seed, plants remain to be extracted from the wild.lophophora williamsii Coult. (peyote) looks like star cactus in its size, shape and also absence of spines. Peyote is bluish-green and lacks the little whitish ranges located on celebrity cactus. Peyote has 5-13 (frequently precisely 5, 8 or 13) ribs, the number enhancing with age. Celebrity cactus, on the other hand, generally has 8 ribs throughout life. Peyote's ribs might extend toward the base in a spiral conformation not seen in star cactus. Mature specimens of L. williamsii might have obvious tubercles, which might (specifically in spiral-ribbed people) provide the ribs an irregular look not observed in A.The external tepals are white with a green red stripe down the midline, yet only the internal tepals, which are white with a pink stripe down the midline, show up from over when the flowers are fully open. Peyote has a huge (size ca. 70-90% of the diameter of the base of the stem), slowly tapering taproot with few side roots, while celebrity cactus has a diminutive taproot (size ca. 10% of the diameter of the aerial section of the stem) that branches right into many slim roots symptomatic of a coarse root system.Within the Tamaulipan thornscrub, star cactus expands in gravelly clays or loams, on gentle slopes in sparsely decayed openings in between bush thickets within mesquite-blackbrush thorn shrublands. Associates of both Astrophytum and also Lophophora in Texas include the hedges mesquite(Prosopis glandulosa), amargosa (Castela erecta), blackbrush (Acacia rigidula), lotebush (Ziziphus obtusifolia), allthorn (Koeberlinia spinosa), desert olive (Forestiera). commonly, however, the two types show up to use somewhat different microhabitats. As an example, we have more often observed Lophophora near the base of shrubs while Astrophytum might grow farther out under the side of the bush's canopy or perhaps in the open. The 2 cacti appear to show preferences (though not outright requirements) for different dirt types. Additional investigation is needed to determine whether as well as how these two cacti dividers the environment.