|
Thelocactus Setispinus
''Thelocactus setispinus'', commonly known as miniature barrel cactus or hedgehog cactus, is a species of cactus in the family Cactaceae. Description ''Thelocactus setispinus'' is globe-shaped to short cylindrical cactus about to wide and up to tall. The 12 to 15 radial spines are needle-shaped, bright, brown or white and up to long. The 1 to 3 central spines are longer and stronger, straight and curved like a hook at the tip. The flowers are orange, dark yellow, magenta, or violet with a red center, about long. This cactus blooms in late summer. The fruits are red, round or elliptical, a little scaly, about to . Distribution This species is widespread in the southern United States in the State of Texas and the Mexican states of Coahuila, Nuevo León and Tamaulipas. This species has spread throughout the world as an ornamental plant. Its natural habitat is arid deserts, distributed widely but has a scattered population. It usually grows in black or clay soils on coastal low ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orto Botanico Dell'Università Di Genova
The Orto Botanico dell'Università di Genova (1 hectare), also known as the Orto Botanico di Genova, is a botanical garden operated by the University of Genoa, and located at Corso Dogali, Genoa, Liguria, Italy. The garden was established in 1803 by Professor Domenico Viviani on the former estate of the Jesuit College of St. Jerome in Balbi. By 1819 its catalog listed 1011 taxa, of which 60% were medicinal plants of European origin. It was extended in 1835 by an additional 4,000 square metres spread over two large terraces. The first large greenhouse was built in 1859, and in 1865 additional land was purchased to bring the garden to its current size of about 10,000 m². Today the garden contains about 4000 specimens, representing about 2000 taxa. Some date back a century or more, including fine specimens of ''Cedrus libani'', ''Cupressus sempervirens'', ''Firmiana simplex'', ''Gleditsia triacanthos'', and ''Sequoia sempervirens'', as well as ''Angiopteris evecta'', ''Arbutus canari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arid
A region is arid when it severely lacks available water, to the extent of hindering or preventing the growth and development of plant and animal life. Regions with arid climates tend to lack vegetation and are called xeric or desertic. Most arid climates straddle the Equator; these regions include parts of Africa, Asia, South America, North America, and Australia. Change over time The distribution of aridity at any time is largely the result of the general circulation of the atmosphere. The latter does change significantly over time through climate change. For example, temperature increase by 1.5–2.1 percent across the Nile Basin over the next 30–40 years could change the region from semi-arid to arid, significantly reducing the land usable for agriculture. In addition, changes in land use can increase demands on soil water and thereby increase aridity. See also * Arid Forest Research Institute * Aridity index * Desert climate * Desiccation tolerance * Drought * Hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thelocactus
''Thelocactus'' is a genus of flowering plants in the cactus family Cactaceae. Members of the genus are native to the arid lands of Central and Northern Mexico. Description ''Thelocactus'' species are globe-shaped, short and cylindrical. They are small cacti, although there are one or two species which, while only about 15 cm high, can be 25 cm in diameter; for example, ''T. nidulans''. ''Thelocactus'' species are generally solitary, but some varieties will cluster in groups. The ribs on ''Thelocactus'' species are very clearly marked and are sometimes twisted in a spiral. There can be from 8 to 20 ribs, which are rather low and normally marked with raised, angular or hexagonal tubercles. These tubercles can sometimes be difficult to distinguish. Areoles sit in a furrow directly above where the spines grow and there can be up to twenty radial/radiating spines. They are often needle-like, spread out and can be from 1.3 – 1.5 cm long. The central spines are most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinocactus Texensis
''Echinocactus texensis'' (also known as the horse crippler or devil's pincushion) is a cactus in the subfamily Cactoideae. It is endemic to the United States and Mexico. It has one Synonym (taxonomy), synonym. References External links * Plants described in 1842 Echinocactus, texensis {{cactus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinocereus Poselgeri
''Echinocereus poselgeri'', also known as the dahlia cactus, is a species of Echinocereus. It is native to Coahuila and southern Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 .... References External links * * poselgeri Cacti of Mexico Cacti of the United States Flora of Texas {{Cactus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinocereus Stramineus
''Echinocereus stramineus'' is a species of cactus in which ''stramineus'' means ''made of straw''. There are various common names such as strawberry cactus, porcupine hedgehog cactus, straw-color hedgehog, and pitaya. The straw-colored spines make this particular plant distinguished from other ''Echinocereus ''Echinocereus'' is a genus of ribbed, usually small to medium-sized, cylindrical shaped cacti, comprising about 70 species native to the southern United States and Mexico in very sunny, rocky places. Usually the flowers are large and the fruit ...''. The aged spines may turn to white color and are very fragile. Distribution ''Echinocereus stramineus'' is natively found in the United States (New Mexico and southwest Texas) and Mexico (Coahuila, Chihuahua, and Nuevo León). It prefers a similar living environment to other cactus such as desert, river and higher mountains. There are certain specific areas in Mexico and United States where the plants occur. For example, U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammillaria Heyderi
''Mammillaria heyderi'' is a species of cactus in the tribe Cacteae. It is endemic to Sonora and Chihuahua in Mexico and New Mexico, Arizona, and Texas in the United States. References External links ''Mammillaria heyderi''at Tropicos Tropicos is an online botanical database containing taxonomic information on plants, mainly from the Neotropical realm (Central, and South America). It is maintained by the Missouri Botanical Garden and was established over 25 years ago. The data ... Plants described in 1848 heyderi {{cactus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophytum Asterias
''Astrophytum asterias'' is a species of cactus in the genus ''Astrophytum'', and is native to small parts of Texas in the United States and Mexico. Common names include sand dollar cactus, sea urchin cactus, star cactus and star peyote. Description ''A. asterias'' (also known as the Star Cactus) is small, round, spineless and squat, reaching a height of and a diameter of . The disc-shaped body is divided into 7–10 sections, known as ribs; in the middle of each rib there are woolly areoles.Anderson, E.F., Arias Montes, S. & Taylor, N.P. (1994) Threatened Cacti of Mexico. Royal Botanic Gardens, Kew. - via ARKive The body is a greenish-brown colour and may appear speckled from its covering of white scales (trichomes). The flowers of this cactus are yellow with red bases and the outer parts are very woolly. Green to pink oval fruits are produced; the outside coat is covered with woolly hairs. Biology Reproduction takes place via sexual outcrossing through cross-pollin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesquite
Mesquite is a common name for several plants in the genus ''Prosopis'', which contains over 40 species of small leguminous trees. They are native to dry areas in the Americas. They have extremely long roots to seek water from very far under ground. As a legume, mesquites are one of the few sources of fixed nitrogen in the desert habitat. These trees bloom from spring to summer. They often produce fruits known as "pods". ''Prosopis'' spp. are able to grow up to tall, depending on site and climate. They are deciduous and depending on location and rainfall have either deep or shallow roots. ''Prosopis'' is considered long-lived because of the low mortality rate after the dicotyledonous stage and juveniles are also able to survive in conditions with low light and drought. The Cahuilla indigenous people of western North America were known to eat the seeds of mesquite. History ''Prosopis'' spp. have been in North America since the Pliocene era and their wood has been dated to 3300 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desert
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or semi-arid. This includes much of the polar regions, where little precipitation occurs, and which are sometimes called polar deserts or "cold deserts". Deserts can be classified by the amount of precipitation that falls, by the temperature that prevails, by the causes of desertification or by their geographical location. Deserts are formed by weathering processes as large variations in temperature between day and night put strains on the rocks, which consequently break in pieces. Although rain seldom occurs in deserts, there are occasional downpours that can result in flash floods. Rain falling on hot rocks can cause them to shatter, and the resulting fragments and rubble strewn over the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamaulipas
Tamaulipas (), officially the Free and Sovereign State of Tamaulipas ( es, Estado Libre y Soberano de Tamaulipas), is a state in the northeast region of Mexico; one of the 31 states which, along with Mexico City, comprise the 32 Federal Entities of Mexico. It is divided into 43 municipalities. Tamaulipas is bordered by the states of Nuevo León to the west, San Luis Potosí to the southwest, and Veracruz to the southeast. To the north, it has a stretch of the U.S.–Mexico border with the state of Texas, and to the east it is bordered by the Gulf of Mexico. In addition to the capital city, Ciudad Victoria, the state's largest cities include Reynosa, Matamoros, Nuevo Laredo, Tampico, and Mante. Etymology The name Tamaulipas is derived from ''Tamaholipa'', a Huastec term in which the ''tam-'' prefix signifies "place (where)". No scholarly agreement exists on the meaning of ''holipa'', but "high hills" is a common interpretation. Another explanation of the state name is tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Engelmann
George Engelmann, also known as Georg Engelmann, (2 February 1809 – 4 February 1884) was a German-American botanist. He was instrumental in describing the flora of the west of North America, then very poorly known to Europeans; he was particularly active in the Rocky Mountains and northern Mexico, one of his constant companions being another German-American, the botanical illustrator Paulus Roetter. Biography Origins George Engelmann was born in Frankfurt am Main, Germany, the oldest of thirteen children, nine of whom reached maturity. His father, Julius Bernhardt Engelmann, was a member of a family from which for several successive generations were chosen ministers for the Reformed Church at Bacharach-on-the-Rhine. Julius was a graduate of the University of Halle, and was also educated for the ministry, but he devoted his life to education. He established a school for young women in Frankfurt, which was rare at the time. George Engelmann's mother, Julie Antoinette, was the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Tamaulipas"){kind=logo}