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List Of Invasive Plant Species In California
A list of invasive plant species in California. Numerous plants have been introduced to the California Floristic Province and within the state's borders. Many of them have become invasive species and/or noxious weeds. The following are some of these species: List *''Acacia dealbata''—silver wattle *''Acacia melanoxylon''—blackwood acacia *''Acacia paradoxa''—paradox acacia *''Agrostis avenacea''—Pacific bentgrass *''Ailanthus altissima''—tree-of-heaven *''Aira caryophyllea'' *'' Allium neapolitanum''—white garlic *''Alliaria petiolata'' *''Alternanthera philoxeroides''—alligatorweed *''Alternanthera sessilis''—sessile joyweed *''Ammophila arenaria'' *''Ammophila breviligulata'' *''Ampelodesmos'' *''Andropogon virginicus'' *''Arctotheca calendula''—capeweed *'' Artemisia biennis'' *''Anthoxanthum odoratum''—sweet vernal grass *''Arundo donax''—giant reed *''Asparagus aethiopicus'' *''Asparagus asparagoides''—bridal creeper *''Atriplex lindleyi'' *''Atriple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasive Species
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food webfor example the purple sea urchin (''Strongylocentrotus purpuratus'') which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter (''Enhydra lutris''). Since the 20th century, invasive species have become a serious economic, social, and environmental threat. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampelodesmos
''Ampelodesmos'' is a genus of Mediterranean plants in the grass family, which is known by the common names stramma, Mauritania grass, rope grass, and dis(s) grass. It is classified in its own tribe Ampelodesmeae within the grass subfamily Pooideae. The genus probably originated through ancient hybrid speciation, as a cross between parents from tribes Stipeae and Phaenospermateae. ''Ampelodesmos mauritanicus'' is a large clumping perennial bunchgrass, which is native to the Mediterranean region. It has been introduced outside its native range and is cultivated as an ornamental grass. Its nodding flower panicles can be nearly two feet long. In its native area it is used as a fiber for making mats, brooms, and twine. The plant can become an Invasive species in non-native ecosystems beyond the Mediterranean Basin. Its nodding flower panicles can be nearly two feet long. In its native area it is used as a fiber for making mats, brooms, and twine. The leaves of this grass are rea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avena Fatua
''Avena'' is a genus of Eurasian and African plants in the Poaceae, grass family. Collectively known as the oats, they include some species which have been cultivated for thousands of years as a food source for humans and livestock. They are widespread throughout Europe, Asia and northwest Africa. Several species have become naturalized in many parts of the world, and are regarded as invasive weeds where they compete with crop production. All oats have edible seeds, though they are small and hard to harvest in most species. * See Oat for a more detailed discussion of the oat as a food source. Ecology ''Avena'' species, including cultivated oats, are used as food plants by the larvae of some Lepidoptera species, including rustic shoulder-knot and setaceous Hebrew character. For diseases of oats, see List of oat diseases. Species Cultivated oats One species is of major commercial importance as a cereal grain. Four other species are grown as crops of minor or regional impor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avena Barbata
''Avena barbata'' is a species of wild oat known by the common name slender wild oat. It has edible seeds. It is a diploidized autotetraploid grass (2n=4x=28). Its diploid ancestors are ''A. hirtula'' Lag. and ''A. wiestii'' Steud (2n=2x=14), which are considered Mediterranean and desert ecotypes, respectively, comprising a single species. ''A westie'' and ''A. hirtula'' are widespread in the Mediterranean Basin, growing in mixed stands with ''A. barbata'', though they are difficult to tell apart. This is a winter annual grass with thin tillers (stems) growing up to 60 to 80 centimeters in maximum height, but known to sometimes grow taller. The bristly spikelets are 2 to 3 centimeters long, not counting the bent awn which is up to 4 centimeters in length. ''Avena barbata'' largely reproduces by selfing in natural populations, with very low rates of outcrossing. ''A. barbata'' is native to central Asia (as far east as Pakistan) and the Mediterranean Basin. As an introduced spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex Suberecta
''Atriplex suberecta'' is a species of saltbush known by the common names sprawling saltbush, lagoon saltbush and (in Britain and Ireland) Australian orache. It is native to Australia. Distribution It can be found on other continents as an introduced species and invasive species, including southern Africa and parts of North America. It is sometimes considered a noxious weed A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is injurious to agricultural or horticultural crops, natural habitats or ecosystems, or humans or liv .... Description This is an annual herb producing sprawling, scaly stems 20 to 60 centimeters long. The thin, toothed leaves are oval to diamond-shaped and up to 3 centimeters long. The male and female flowers are generally borne in axillary clusters. References External linksJepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex Semibaccata
Atriplex semibaccata, commonly known as Australian saltbush, berry saltbush, or creeping saltbush, is a species of flowering plant in the family Amaranthaceae and is endemic to Australia. It is a perennial herb native to Western Australia, South Australia, Queensland and New South Wales, but has been introduced into other states and to overseas countries. It flowers and fruits in spring, and propagates from seed when the fruit splits open. This species of saltbush is adapted to inconsistent rainfall, temperature and humidity extremes and to poor soil. It is used for rehabilitation, medicine, as a cover crop and for fodder. Its introduction to other countries has had an environmental and economic impact on them. Description ''Atriplex semibaccata'' is a taproot perennial herb, that has prostrated and decumbent characteristics. Native to Australia and widespread in all mainland Australian states, ''A. semibaccata'' thrives in harsh and saline conditions. ''A. semibaccata'' is ofte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex Rosea
''Atriplex rosea'' is a species of saltbush known by the common names tumbling saltbush, red orach, redscale and tumbling orach (; also spelled orache). It is native to Eurasia but it is widespread elsewhere as an introduced species. This is an annual herb with erect, hairless stems growing up to 1.5 meters, 4.5 feet, in height. The leaves are green to red in color, oval to triangular to lance-shaped, and with edges which are smooth to wavy. Each leaf has three prominent veins and is up to 6 centimeters long and 3 wide. The male and female flowers are borne in clusters or spikelike inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...s. References External linksJepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex Lindleyi
''Atriplex lindleyi'' is a species of saltbush known by the common name Lindley's saltbush. It is native to Australia, where it is widespread, especially in dry areas. It is known elsewhere as an introduced species, in California and the United States an invasive species. Description This is an annual or perennial herb producing brittle, scaly whitish stems erect or spreading to lengths between 10 and 40 centimeters. The leaves are greenish white, scaly, and often toothed along the edges. They are widely lance-shaped to diamond in shape and up to 3 or 4 centimeters long. Male flowers are located in leaf axils or in spikelike inflorescences. Female flowers are generally held in small clusters below the male clusters in the leaf axils. The female inflorescence has spongy bract In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagus Asparagoides
''Asparagus asparagoides'', commonly known as bridal creeper, bridal-veil creeper, ''gnarboola'', smilax or smilax asparagus, is a herbaceous climbing plant of the family Asparagaceae native to eastern and southern Africa. Sometimes grown as an ornamental plant, it has become a serious environmental weed in Australia and New Zealand. Taxonomy Linnaeus first described this species as ''Medeola asparagoides'' in 1753. It has been reclassified in the genus ''Asparagus'' by W. Wight in 1909, or ''Myrsiphyllum'' by Carl Ludwig von Willdenow in 1808. Description ''Asparagus asparagoides'' grows as a herbaceous vine with a scrambling or climbing habit which can reach 3 m (10 ft) in length. It has shiny green leaf-like structures (phylloclades) which are flattened stems rather than true leaves. They measure up to 4 cm long by 2 cm wide. The pendent white flowers appear over winter and spring, from July to September. It is rhizomatous, and bears tubers which reach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagus Aethiopicus
''Asparagus aethiopicus'', Sprenger's asparagus, is a plant native to the Cape Provinces and the Northern Provinces of South Africa. Often used as an ornamental plant, it is considered an invasive weed in many locations. Asparagus fern, asparagus grass and foxtail fern are common names; however, it is unrelated to true ferns. ''A. aethiopicus'' has been confused with ''Asparagus densiflorus, A. densiflorus'', now regarded as a separate species, so that information about ''A. aethiopicus'' will often be found under the name ''A. densiflorus''. Name and description The species was originally described by Carl Linnaeus in 1767. The attribution "''Sprenger's Asparagus,''" refers to Carl Ludwig Sprenger who made it popular in Europe as an ornamental plant. ''Asparagus aethiopicus'' is a branching perennial herb with tough green aerial stems which are sparsely covered with spines. The oval-shaped leaves are actually leaf-like Phylloclade, cladodes, which are 0.8–2 cm long and 0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arundo Donax
''Arundo donax'' is a tall perennial cane. It is one of several so-called reed species. It has several common names including giant cane, elephant grass, carrizo, arundo, Spanish cane, Colorado river reed, wild cane, and giant reed. ''Arundo'' and ''donax'' are respectively the old Latin and Greek names for reed. ''Arundo donax'' grows in damp soils, either fresh or moderately saline, and is native to the Greater Middle East.CABI, 2020. Arundo donax (giant reed). In: Invasive Species Compendium. Wallingford, UK: CAB International. https://www.cabi.org/isc/datasheet/1940Global Invasive Species Database (2020) Species profile: Arundo donax. Downloaded from http://www.iucngisd.org/gisd/species.php?sc=112 on 12-01-2020. It has been widely planted and naturalised in the mild temperate, subtropical and tropical regions of both hemispheres, especially in the Mediterranean, California, the western Pacific and the Caribbean and is considered invasive in North America and Oceania.Perdue, R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthoxanthum Odoratum
''Anthoxanthum odoratum'', known as sweet vernal grass, is a short-lived perennial grass that is native to acidic grassland in Eurasia and northern Africa. It is grown as a lawn grass and a house plant, due to its sweet scent, and can also be found on unimproved pastures and meadows. The specific epithet ''odoratum'' is Latin for 'odorous'. Description ''Anthoxanthum odaoratum'' is a short-lived perennial grass that grows in tufts with stems up to tall. The leaves are short and broad, wide, and glabrous to loosely hairy. It flowers in late spring and early summer, i.e. quite early in the season, with flower spikes of long and crowded spikelets of , oblong shaped, which can be quite dark when young. The lower lemmas have projecting awns. The ligules are quite long, up to , blunt, with hairy fringes around the side. The scent is particularly strong when dried, and is due to coumarin, a glycoside, and benzoic acid – it smells like fresh hay with a hint of vanilla. The see ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
