|
Dasylirion Leiophyllum
''Dasylirion leiophyllum'' is a species of flowering plant in the asparagus family known by the common names green sotol, smooth-leaf sotol, and smooth sotol. It is native to North America, where it occurs in Chihuahua and Coahuila''Dasylirion leiophyllum''. Flora of North America. in Mexico and and western in the United States.Tesky, Julie L. 1993 ''Dasylirion leiophyllum''. In: Fire Effects Inf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Dominance (ecology)
Ecological dominance is the degree to which one or several species have a major influence controlling the other species in their Community (ecology), ecological community (because of their large size, population, productivity, or related factors) or make up more of the Biomass (ecology), biomass. Both the composition and abundance of species within an ecosystem can be affected by the dominant species present. In most of the world's ecosystems, biologists have repeatedly observed a Rank abundance curve, rank-abundance curve in which ecosystems comprise a handful of incredibly abundant species, but more numerous, rarer species that are few in number. Danish botanist Christen C. Raunkiær described this phenomenon as his "Occupancy frequency distribution, law of frequency" in 1918, in which he recognized that in communities with a single species accounting for most of the biomass, species diversity was often lower. Understandably, biologists expect to see more profound effects fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Tridens Muticus
''Tridentopsis mutica'' is a New World species of grass known by the common name slim tridens. Description It is a perennial grass forming a thick tuft with a knotted base and rhizome. It reaches a maximum height of . The panicle has short branches appressed to the others, making the inflorescence narrow. The florets are generally purple in color. This plant uses C4 carbon fixation carbon fixation or the Hatch–Slack pathway is one of three known photosynthetic processes of carbon fixation in plants. It owes the names to the 1960s discovery by Marshall Davidson Hatch and Charles Roger Slack. fixation is an addition ... as its method of energy metabolism. Distribution and habitat It is native to northern Mexico and the southwestern and south-central United States. It grows in several types of habitat, including plateau and desert, woodlands, sagebrush, plains, and other areas with dry sandy and clay soils. References External linksJepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Aristida
''Aristida'' is a very nearly Cosmopolitan distribution, cosmopolitan genus of plants in the Poaceae, grass family. ''Aristida'' is distinguished by having three Awn (Botany), awns (bristles) on each lemma (botany), lemma of each floret. The genus includes about 300 species found worldwide, often in arid warm regions. This genus is among those colloquially called three-awns wiregrass (other), wiregrasses, speargrass (other), speargrasses and needlegrass (other), needlegrasses. The name ''Aristida'' is derived from the Latin "wikt:arista#Latin, arista", meaning "awn". They are characteristic of semiarid grassland. The Wiregrass Region of North America is named for ''Aristida stricta, A. stricta''. Other locales where this genus is an important component of the ecosystem include the Carolina Bays, the sandhills (Carolina), sandhills of the Carolinas, and sandhill, elsewhere, Acacia aneura, Mulga scrub in Australia, and the xeric grasslands around Lake Tur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Bouteloua
''Bouteloua'' is a genus of plants in the grass family Poaceae. Members of the genus are commonly known as grama grass. Description ''Bouteloua'' includes both annual and perennial grasses, which frequently form stolons. Species have an inflorescence of 1 to 80 racemes or spikes positioned alternately on the culm (stem). The rachis (stem) of the spike is flattened. The spikelets are positioned along one side of the spike. Each spikelet contains one fertile floret, and usually one sterile floret. Taxonomy The genus was first described by Mariano Lagasca in 1805. It was named for Claudio and Esteban Boutelou, 19th-century Spanish botanists. David Griffiths produced a 1912 monograph on the genus. Species Species of ''Bouteloua'' include: * '' Bouteloua alamosana'' Vasey – Mesoamerica * '' Bouteloua americana'' (L.) Scribn. – American grama – southern Mexico, Central America, West Indies, northern South America * '' Bouteloua annua'' Swallen – Baja Californi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Muhlenbergia Setifolia
''Muhlenbergia'' is a genus of plants in the grass family. The genus is named in honor of the German-American amateur botanist Gotthilf Heinrich Ernst Muhlenberg (1753-1815). Many of the species are known by the common name muhly. The greatest number are native to the southwestern United States and Mexico, but there are also native species in Canada, Central and South America and in Asia. Species Species in the genus include: * ''Muhlenbergia aguascalientensis'' Y.Herrera & De la Cerda - Aguascalientes * ''Muhlenbergia alamosae'' Vasey - Aguascalientes, Chihuahua, Sonora, Sinaloa, Durango, Baja California, Baja California Sur, Guanajuato, Jalisco, Mexico State, Morelos, Zacatecas * ''Muhlenbergia alopecuroides'' (Griseb.) P.M.Peterson & Columbus – southwestern US, northern Mexico, northern Argentina * ''Muhlenbergia andina'' (Nutt.) Hitchc. – Foxtail muhly - western Canada, western United States * ''Muhlenbergia angustata'' (J.Presl) Kunth - South America * ''Muhlenbergia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Viguiera Stenoloba
''Viguiera'' is a genus of flowering plants in the family Asteraceae. It contains around 19–40 species, which are commonly known as goldeneyes and are native to the New World. These are herbs to bushy shrubs that bear yellow or orange daisy-like flowers. Taxonomy The name honours French physician L. G. Alexandre Viguier (1790–1867). It was first described and published by Carl Sigismund Kunth in ( F. W. H. von Humboldt, A. J. A. Bonpland and Carl Sigismund Kunth, edited), Nov. Gen. Sp., ed. fol., vol. 4 on page 176 in 1818. Recent molecular phylogenetic studies by botanists Schilling and Panero in 2011, showed that these species are within a large group that were formerly classified in the genus ''Viguiera'', and so '' Aldama'' has been expanded to include a total of 118 species (most of those from ''Viguiera''). Species 19 species are accepted by Plants of the World Online (shown by pw), and World Flora Online accepts 40 species (shown in list below); * '' Viguiera anch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Quercus Undulata
An oak is a hardwood tree or shrub in the genus ''Quercus'' of the Fagaceae, beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisphere; it includes some 500 species, both deciduous and evergreen. Fossil oaks date back to the Middle Eocene. Molecular phylogeny shows that the genus is divided into Old World and New World clades, but many oak species Hybrid (biology), hybridise freely, making the genus's history difficult to resolve. Ecologically, oaks are keystone species in habitats from Mediterranean semi-desert to subtropical rainforest. They live in association with many kinds of fungi including truffles. Oaks support more than 950 species of caterpillar, many kinds of gall wasp which form distinctive galls (roundish woody lumps such as the oak apple), and a large number of pests and diseases. Oak leaves and acorns contain enough tannin to be toxic to catt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Juniperus Pinchotii
''Juniperus pinchotii'', commonly known as Pinchot juniper or redberry juniper, is a species of juniper native to south-western North America, in Mexico: Nuevo León and Coahuila, and in the United States: south-eastern New Mexico, central Texas, and western Oklahoma. It grows at altitudes between .Farjon, A. (2005). ''Monograph of Cupressaceae and Sciadopitys''. Royal Botanic Gardens, Kew. Adams, R. P. (2008). ''Junipers of the World'', 2nd ed. Trafford. Description ''Juniperus pinchotii'' is an evergreen coniferous shrub or small tree growing to tall, usually multistemmed, and with a dense, rounded crown. The bark is pale gray, exfoliating in thin longitudinal strips, exposing orange brown underneath. The ultimate shoots are 1.1–1.8 millimetres thick. The leaves are scale-like, 1–2 mm long and 0.5–1.5 mm broad on small shoots, up to 12 mm long on vigorous shoots; they are arranged in alternating whorls of three or opposite pairs. The juvenile leaves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Nolina
''Nolina'' is a genus of tropical xerophytic flowering plants belonging to the family Asparagaceae. The native distribution of the genus includes most of Mexico and the southern regions of the United States.Hochstätter, F. (2010). The genus ''Nolina'' (Nolinaceae). Piante Grasse 2010(1, Suppl.): 1-48. Especially in the USA, members of the genus are known as beargrasses, some of which are cultivated as ornamental plants. ''Nolina'' species grow large rosettes of many leaves, with many species forming large, erect trunks, with some species branching to contain multiple rosettes of leaves. They are typically large plants, and are dioecious, with male and female flowers being produced on different plants. The genus is named for 18th century French arboriculturist Abbé C. P. Nolin. Classification In the APG III classification system of plant taxonomy, ''Nolina'' is a member of the Asparagaceae family of plants, and within this family, ''Nolina'' is part of a subfamily, the Nol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Yucca
''Yucca'' ( , YUCK-uh) is both the scientific name and common name for a genus native to North America from Panama to southern Canada. It contains 50 accepted species. In addition to yucca, they are also known as Adam's needle or Spanish-bayonet. The genus is generally classified in the asparagus family in Agavoideae, a subfamily with the ''Agave'', though historically it was part of the lily family. The species range from small shrubby plants to tree-like giants, such as the Joshua tree. All yuccas have Rosette (botany), rosettes of leaves that taper to points and inflorescences with many flowers that are mainly cream white with thick petals. Though adapted to a wide range of climates the plants are xerophytes, ones that specialize in dry living conditions. The tight relationship between the yucca plants and their pollinators, the yucca moths from the genera ''Tegeticula'' and ''Parategeticula'', is a well known example of evolutionary Mutualism (biology), mutualism. They are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Opuntia
''Opuntia'', commonly called the prickly pear cactus, is a genus of flowering plants in the cactus family Cactaceae, many known for their flavorful fruit and showy flowers. Cacti are native to the Americas, and are well adapted to arid climates; however, they are still vulnerable to alterations in precipitation and temperature driven by climate change. The plant has been introduced to parts of Australia, southern Europe, the Middle East, and northern Africa. ''Prickly pear'' alone is more commonly used to refer exclusively to the fruit, but may also be used for the plant itself; in addition, other names given to the plant and its specific parts include ''tuna'' (fruit), ''sabra'', ''sabbar'', '' nopal'' (pads, plural ''nopales'') from the Nahuatl word , nostle (fruit) from the Nahuatl word , and paddle cactus. The genus is named for the Ancient Greek city of Opus. The fruit and leaves are edible. The most common culinary species is the "Barbary fig" ('' Opuntia ficus-indica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
