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Cycladenia Humilis Var. Jonesii
''Cycladenia humilis'' var. ''jonesii'', known as Jones cycladenia or Jones waxy dogbane,Tilley, D., St. John, L. and D. Ogle. 2010Plant guide for Jones’ waxy dogbane (Cycladenia humilis var. jonesii) USDA-Natural Resources Conservation Service, Idaho Plant Materials Center. Aberdeen, ID. is a threatened variety of ''Cycladenia humilis''. It is one of three varieties of the species, the other two occurring in California (var. ''humilis'' and var. ''venusta''). Habitat At the time of its listing as a threatened species, Jones cycladenia occurred in four known areas in the Canyon Lands The Canyon Lands Section of the Colorado Plateau is a physiographic section of the larger Colorado Plateaus province, which in turn is part of the larger Intermontane Plateaus physiographic division in the Western United States Description The C ... of southwestern Utah and northern Arizona. The populations were disjunct, occurring at least 100 miles apart. It was estimated that 7,500 individua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variety (botany)
In botanical nomenclature, variety (abbreviated var.; in la, varietas) is a taxonomic rank below that of species and subspecies, but above that of form. As such, it gets a three-part infraspecific name. It is sometimes recommended that the subspecies rank should be used to recognize geographic distinctiveness, whereas the variety rank is appropriate if the taxon is seen throughout the geographic range of the species. Example The pincushion cactus, ''Escobaria vivipara'' (Nutt.) Buxb., is a wide-ranging variable species occurring from Canada to Mexico, and found throughout New Mexico below about . Nine varieties have been described. Where the varieties of the pincushion cactus meet, they intergrade. The variety ''Escobaria vivipara'' var. ''arizonica'' is from Arizona, while ''Escobaria vivipara'' var. ''neo-mexicana'' is from New Mexico. See also '' Capsicum annuum var. glabriusculum'' Definitions The term is defined in different ways by different authors. However, the I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycladenia Humilis
''Cycladenia humilis'' is the sole member of the monotypic genus ''Cycladenia''. Known by the common name Sacramento waxydogbane, it is an uncommon plant native to the southwestern United States. Collections have mostly been from California, although the species has also been reported from Utah and Arizona, mostly on gypsum soils. It is found at some elevation in several mountain ranges in the region. One of the four varieties of this plant, called the Jones waxydogbane, is considered a threatened taxon.USFWSRule to determine ''Cycladenia humilis'' var. ''jonesii'' (Jones Cycladenia) to be Thr. Species.''Federal Register'' May 5, 1986. This is a fleshy perennial herb with dull green leaves and pinkish lavender flowers. The flowers begin as rolled tubes shaped like pea pods and then open into colorful funnel-shaped blooms. Nomenclature ''Cycladenia humilis'' Benth., Pl. Hartw. 323. 1849. Three varieties are recognized in addition to the autonymic var. ''humilis'': * ''Cyclad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canyon Lands
The Canyon Lands Section of the Colorado Plateau is a physiographic section of the larger Colorado Plateaus province, which in turn is part of the larger Intermontane Plateaus physiographic division in the Western United States Description The Canyon Lands are a desolate, but spectacularly scenic sandstone area of southeastern Utah and northeastern Arizona. Dominated by canyons (as the name implies) this section has four large upwarps between which are structural basins. Very little faulting is associated with the upwarps or basins. Other distinctive features of the Canyon Lands Section are the laccolithic mountains, like the Henry Mountains and the La Sal Mountains. These are structural domes. The turbid San Juan River flows into the region from the east, through a deep meandering gorge, which, with its tributaries, drains a far-reaching area, including the La Plata Mountains, the San Juan Mountains and other lesser ranges on the Continental Divide, the Chuska Mountains, and en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Arizona
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
