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Ferocactus Gracilis
''Ferocactus gracilis'', the fire barrel cactus, is a species of Ferocactus from Northwestern Mexico. This cactus gets its common name from the striking red coloration of its defensive spines and flowers. Description ''Ferocactus gracilis'' is a solitary cactus that grows up to 3 meters tall, with cylindrical or spherical stems reaching heights of up to and diameters of . It has deep green stems with 16 to 24 slightly tuberculated ribs. The areoles are light gray bearing 7 to 13 central spines that are red, flattened, and up to long, with a slightly curved to hook-shaped yellow tip. Additionally, there are eight to twelve white radial spines, occasionally twisted and around long. The plant blooms in spring to early summer, producing funnel-shaped flowers with a purple-red midvein and red,yellow to white margins, reaching lengths of up to and diameters of . The elongated yellow fruits are about long and do not open at a basal pore. The seeds are round, black, shiny, and measur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
