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Extriplex
''Extriplex'' is a plant genus in the subfamily Chenopodioideae of the family Amaranthaceae. It has been described in 2010 and comprises two species, that were formerly included in genus '' Atriplex''. They are restricted to the California Floristic Province. Description The species of ''Extriplex'' are annuals or perennial herbs up to 1 m high, growing erect or spreading to decumbent. Young plant parts are farinose, older ones glabrescent or scurfy. The sparsely or much branched stems are striate when young, later stramineous. The green to grayish leaves are alternate, the lowest sometimes nearly opposite, petiolated or not. Their leaf blades are 4–70 mm long and 2–40 mm wide, deltoid to ovate-rhombic (to subhastate) or lanceolate to elliptic, with irregularly sinuate-dentate or entire margins. The leaf anatomy is of the "normal" (''non-Kranz'') type of C3-plants. The plants are monoecious. The inflorescences stand axillary or form dense or interrupted spik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extriplex Californica
''Extriplex californica'' is a plant species known by the common name California saltbush or California orache. Formerly, it was included in genus '' Atriplex''. It is native to coastal California and Baja California, where it grows in areas with saline soils, such as beaches and salt marshes. Description ''Extriplex californica'' is a perennial herb growing from a fleshy caudex and taproot. Many stems spread to a maximum width of about 80 centimeters (32 in.) and 30 centimeters (12 in.) in height. The scaly gray-green leaves are lance-shaped to oval and less than 3 centimeters (1 in.) long. The plant may be monoecious or dioecious, with some plants having both male and female flower types, and others having just one. Both types of inflorescence are rough clusters of tiny flowers. Systematics The first publication of this taxon was in 1849 by Alfred Moquin-Tandon (in: De Candolle: ''Prodromus Systematis Naturalis Regni Vegetabilis'' 13(2): 98) as ''Atriplex californica'' Moq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Saltbush
''Extriplex californica'' is a plant species known by the common name California saltbush or California orache. Formerly, it was included in genus '' Atriplex''. It is native to coastal California and Baja California, where it grows in areas with saline soils, such as beaches and salt marshes. Description ''Extriplex californica'' is a perennial herb growing from a fleshy caudex and taproot. Many stems spread to a maximum width of about 80 centimeters (32 in.) and 30 centimeters (12 in.) in height. The scaly gray-green leaves are lance-shaped to oval and less than 3 centimeters (1 in.) long. The plant may be monoecious or dioecious, with some plants having both male and female flower types, and others having just one. Both types of inflorescence are rough clusters of tiny flowers. Systematics The first publication of this taxon was in 1849 by Alfred Moquin-Tandon (in: De Candolle: ''Prodromus Systematis Naturalis Regni Vegetabilis'' 13(2): 98) as ''Atriplex californica'' Moq. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extriplex Joaquinana
''Extriplex joaquinana'' is a species known by the common name San Joaquin saltbush. It was formerly included in genus '' Atriplex''. Distribution It is endemic to California, where it grows in alkaline soils in the Sacramento-San Joaquin River Delta and adjacent parts of the Central Valley and eastern Central Coast Ranges. Description This is an annual herb growing erect to a maximum height near one meter. The leaves are 1 to 7 centimeters in length, often scaly, green to gray-green in color, and oval to triangular in shape. The leaves are mostly located lower on the erect plant; those further up the stem are reduced in size. The inflorescences of male flowers are dense, heavy spikes, and the female flowers are held in smaller clusters. Systematics The first publication of this taxon was in 1904 by Aven Nelson as ''Atriplex joaquinana'' A.Nelson (in: ''Proceedings of the Biological Society of Washington'' 17(12): 99). (It has sometimes been wrongly spelled ''Atriplex joaqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chenopodioideae
The Chenopodioideae are a subfamily of the flowering plant family Amaranthaceae in the APG III system, which is largely based on molecular phylogeny, but were included - together with other subfamilies - in family Chenopodiaceae in the Cronquist system. Food species comprise Spinach (''Spinacia oleracea''), Good King Henry (''Blitum bonus-henricus''), several '' Chenopodium'' species (Quinoa, Kañiwa, Fat Hen), Orache (''Atriplex spp.''), and Epazote (''Dysphania ambrosioides''). The name is Greek for goosefoot, the common name of a genus of plants having small greenish flowers. Description The Chenopodioideae are annual or perennial herbs, subshrubs, shrub or small trees. The leaves are usually alternate and flat. The flowers are often unisexual. Many species are monoecious or have mixed inflorescences of bisexual and unisexual flowers. Some species are dioecious, like ''Spinacia'', '' Grayia'', '' Exomis'', and ''Atriplex''. In several species of tribe Atripliceae, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atripliceae
Atripliceae are a tribe of the subfamily Chenopodioideae belonging to the plant family Amaranthaceae. '' Atriplex'' is the largest genus of the tribe. Species of Atripiceae are ecologically important in steppe and semi-desert climates. Distribution Most of the species are distributed in Africa, Australia, and North America, with some others spread out worldwide. Taxonomy Traditional taxonomy Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ... of Atripliceae based on morphological features has been controversial. Molecular studies have found that many genera are not true clades. One such study found that Atripliceae could be divided into two main clades, Archiatriplex, with a few, scattered species, and the larger Atriplex clade, which is highly diverse and found around the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amaranthaceae
Amaranthaceae is a family of flowering plants commonly known as the amaranth family, in reference to its type genus ''Amaranthus''. It includes the former goosefoot family Chenopodiaceae and contains about 165 genera and 2,040 species, making it the most species-rich lineage within its parent order, Caryophyllales. Description Vegetative characters Most species in the Amaranthaceae are annual or perennial herbs or subshrubs; others are shrubs; very few species are vines or trees. Some species are succulent. Many species have stems with thickened nodes. The wood of the perennial stem has a typical "anomalous" secondary growth; only in subfamily Polycnemoideae is secondary growth normal. The leaves are simple and mostly alternate, sometimes opposite. They never possess stipules. They are flat or terete, and their shape is extremely variable, with entire or toothed margins. In some species, the leaves are reduced to minute scales. In most cases, neither basal nor terminal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex
''Atriplex'' () is a plant genus of about 250 species, known by the common names of saltbush and orache (; also spelled orach). It belongs to the subfamily Chenopodioideae of the family Amaranthaceae ''s.l.''. The genus is quite variable and widely distributed. It includes many desert and seashore plants and halophytes, as well as plants of moist environments. The generic name originated in Latin and was applied by Pliny the Elder to the edible oraches. The name saltbush derives from the fact that the plants retain salt in their leaves; they are able to grow in areas affected by soil salination. Description Species of plants in genus ''Atriplex'' are annual or perennial herbs, subshrubs, or shrubs. The plants are often covered with bladderlike hairs, that later collapse and form a silvery, scurfy or mealy surface, rarely with elongate trichomes. The leaves are arranged alternately along the branches, rarely in opposite pairs, either sessile or on a petiole, and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pericarp
Fruit anatomy is the plant anatomy of the internal structure of fruit. Fruits are the mature ovary or ovaries of one or more flowers. They are found in three main anatomical categories: aggregate fruits, multiple fruits, and simple fruits. Aggregate fruits are formed from a single compound flower and contain many ovaries or fruitlets. Examples include raspberries and blackberries. Multiple fruits are formed from the fused ovaries of multiple flowers or inflorescence. Examples include fig, mulberry, and pineapple. Simple fruits are formed from a single ovary and may contain one or many seeds. They can be either fleshy or dry. In fleshy fruit, during development, the pericarp (ovary wall) and other accessory structures become the fleshy portion of the fruit. The types of fleshy fruits are berries, pomes, and drupes. In some fruits, the edible portion is not derived from the ovary, but rather from the aril, such as the mangosteen or pomegranate, and the pineapple from which tiss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetic
In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, protein amino acid sequences, or morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An unrooted tree diagram (a network) makes no assumption about the ancestral line, and does ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Sage Scrub
Coastal sage scrub, also known as coastal scrub, CSS, or soft chaparral, is a low scrubland plant community of the California coastal sage and chaparral subecoregion, found in coastal California and northwestern coastal Baja California. It is within the California chaparral and woodlands ecoregion, of the Mediterranean forests, woodlands, and scrub biome. Characteristics ;Plant community Coastal sage scrub is characterized by low-growing aromatic, and drought-deciduous shrubs adapted to the semi-arid Mediterranean climate of the coastal lowlands. The community is sometimes called "soft chaparral" due to the predominance of soft, drought-deciduous leaves in contrast to the hard, waxy-cuticled leaves on sclerophyllous plants of California's chaparral communities. ;Flora Characteristic shrubs and subshrubs include: * California sagebrush (''Artemisia californica'') * Black sage (''Salvia mellifera'') * White sage (''Salvia apiana'') * California buckwheat (''Eriogonum fas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt Marsh
A salt marsh or saltmarsh, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. It is dominated by dense stands of salt-tolerant plants such as herbs, grasses, or low shrubs. These plants are terrestrial in origin and are essential to the stability of the salt marsh in trapping and binding sediments. Salt marshes play a large role in the aquatic food web and the delivery of nutrients to coastal waters. They also support terrestrial animals and provide coastal protection. Salt marshes have historically been endangered by poorly implemented coastal management practices, with land reclaimed for human uses or polluted by upstream agriculture or other industrial coastal uses. Additionally, sea level rise caused by climate change is endangering other marshes, through erosion and submersion of otherwise tidal marshes. However, r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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