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Chrysothamnus Molestus
''Chrysothamnus molestus'' is a species of flowering plant in the family Asteraceae known by the common names Arizona rabbitbrush, Tusayan rabbitbrush, disturbed rabbitbrush, and stickyfruit low rabbitbrush. It is endemic to the State of Arizona in the southwestern United States, where it is known from Coconino, Apache, and Navajo Counties.''Chrysothamnus molestus''. The Nature Conservancy.Anderson, L. C. and B. Hevron. (1993) New records and data for the rare ''Chrysothamnus molestus'' in Arizona. ''Journal of the Arizona-Nevada Academy of Science'' 27(1) 1-4. This plant is a low [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysothamnus Viscidiflorus
''Chrysothamnus viscidiflorus'' is a species of shrub in the family Asteraceae of the Americas known by the common names yellow rabbitbrush and green rabbitbrush. Description ''Chrysothamnus viscidiflorus'' grows up to about in height, with spreading, brittle, pale stem branches. The leaves are up to a few centimeters long and may be thin and thread-like or up to 1 cm wide and oblong. They are glandular, resinous, and sticky. The inflorescence is a bushy cluster of flower heads, each head 0.5–1 cm long. The flower head is lined with sticky yellow-green phyllaries and contains several yellowish protruding flowers. The fruit is a hairy achene a few millimeters long with a wispy pappus at the tip. The species grows in sagebrush and woodland habitat. Subspecies and varieties Subspecies and varieties include:Subspecies and varieties recognized bUSDA — ''Chrysothamnus viscidiflorus'' Subordinate Taxa. accessed 5 September 2015Subspecies recognized bCalflora Dat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysothamnus Greenei
''Chrysothamnus greenei'', called Greene's rabbitbrush , is a North American species of flowering plants in the tribe Astereae within the family Asteraceae. It has been found in eastern California (Mono + Inyo Counties), Nevada, Arizona, New Mexico, Utah, Colorado, and southern Wyoming ( Sweetwater County). ''Chrysothamnus greenei'' is a branching shrub up to 50 cm (20 inches) tall with gray bark. It has many small, yellow flower heads A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ... clumped into dense arrays. The species grows in sandy locations in desert regions. References {{Taxonbar, from=Q15594078 Astereae Flora of the Northwestern United States Flora of the Southwestern United States Flora of the California desert regions Flora of the Great Basin Flora of N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysothamnus Depressus
''Chrysothamnus depressus'' called long-flowered rabbitbrush, is a North American species of flowering plants in the tribe Astereae within the family Asteraceae. It is native to the southwestern United States, the States of California, Arizona, New Mexico, Nevada, Utah, and Colorado. It grows in dry canyons, rocky crevices and similar habitats in the Mohave Desert, the Colorado Plateau, etc. includes photos and distribution map ''Chrysothamnus depressus'' is a branching shrub up to 50 cm (20 inches) tall. It produces large, dense arrays of small yellow |
Krascheninnikovia Lanata
''Krascheninnikovia'' is a genus of flowering plants in the subfamily Chenopodioideae of the family Amaranthaceae known as winterfat, so-called because it is a nutritious livestock forage. They are known from Eurasia and western North America. These are hairy perennials or small shrubs which may be monoecious or dioecious. They bear spike inflorescences of woolly flowers. Description The species of ''Krascheninnikovia'' are erect subshrubs or shrubs. The plants are densely covered with dendroid stellate hairs and additionally with simple, unbranched hairs. The alternate leaves stand solitary or grouped in fascicles, and can be petiolate or nearly sessile. The flat, non-fleshy leaf blades are linear to narrowly lanceolate to ovate, with entire margins, and truncate, cuneate, rounded, or subcordate base. The flowers are unisexual, the plants can be monoecious or dioecious. Male flowers form an interrupted spike or subcapitate inflorescence of glomeruled, ebracteate flowers. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bouteloua Gracilis
''Bouteloua gracilis'', the blue grama, is a long-lived, warm-season ( C4) perennial grass, native to North America. It is most commonly found from Alberta, Canada, east to Manitoba and south across the Rocky Mountains, Great Plains, and U.S. Midwest states, onto the northern Mexican Plateau in Mexico. Blue grama accounts for most of the net primary productivity in the shortgrass prairie of the central and southern Great Plains. It is a green or greyish, low-growing, drought-tolerant grass with limited maintenance. Description Blue grama has green to greyish leaves less than wide and long. The overall height of the plant is at maturity. The flowering stems ( culms) are long. At the top are one to four, usually two, comb-like spikes, which extend out at a sharp angle from the flowering stem. Each spike has 20 to 90 spikelets. Each spikelet is long, and has one fertile floret and one or two reduced sterile ones. Below the florets are two glumes, one long and the ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berberis Fremontii
''Berberis fremontii'' is a species of barberry known by the common name Frémont's mahonia (after John C. Frémont). Description ''Berberis fremontii'' is an erect evergreen shrub growing up to 4.5 meters tall. The leaves are several centimeters long and are made up of several holly-leaf-shaped leaflets, each most often 1–2.6 centimeters long and edged with spiny teeth. The leaves are purplish when new, green when mature, and greenish blue when aged. The abundant inflorescences each bear 8 to 12 bright yellow flowers, blooming in the spring. Each flower is made up of nine sepals and six petals all arranged in whorls of three. The fruit is a berry up to 1.5 centimeters wide, ranging in color from yellowish to purple to nearly black. Taxonomy ''Berberis fremontii'' was scientifically described and named by John Torrey. For many years it has been part of the controversy on if parts of the ''Berberis'' genus should be classified as ''Mahonia''. Friedrich Karl Georg Fedde cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex Canescens
''Atriplex canescens'' (or chamiso, chamiza, four-wing saltbush) is a species of evergreen shrub in the family Amaranthaceae native to the western and midwestern United States. Description ''Atriplex canescens'' has a highly variable form, and readily hybridizes with several other species in the genus '' Atriplex''. The degree of polyploidy also results in variations in form. Its height can vary from 1 foot to 10 feet, but 2 to 4 feet is most common. The leaves are thin and 0.5 to 2 inches long. It is most readily identified by the fruits, which have four wings at roughly 90 degree angles and are densely packed on long stems. This species blooms from April to October. Habitat Fourwing saltbush is most common in early succession areas such as disturbed sites and active sand dunes. It is also found in more mature successions dominated by sagebrush—''Artemisia tridentata'' and shadscale. Uses Among the Zuni people, an infusion of dried root and blossoms or a poultice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artemisia Tridentata
''Artemisia tridentata'', commonly called big sagebrush,MacKay, Pam (2013), ''Mojave Desert Wildflowers'', 2nd ed., , p. 264. Great Basin sagebrush or (locally) simply sagebrush, is an aromatic shrub from the family Asteraceae, which grows in arid and semi-arid conditions, throughout a range of cold desert, steppe, and mountain habitats in the Intermountain West of North America. The vernacular name "sagebrush" is also used for several related members of the genus '' Artemisia'', such as California sagebrush (''Artemisia californica''). Big sagebrush and other ''Artemisia'' shrubs are the dominant plant species across large portions of the Great Basin. The range extends northward through British Columbia's southern interior, south into Baja California, and east into the western Great Plains of New Mexico, Colorado, Nebraska, and the Dakotas. Several major threats exist to sagebrush ecosystems, including human settlements, conversion to agricultural land, livestock grazin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for lime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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