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Erysimum Menziesii
''Erysimum menziesii'' is a species of ''Erysimum'' known by the common name Menzies' wallflower. This rare plant is endemic to California. It is found only in the declining beach sand dune habitat in three areas on the California coastline, in Humboldt, Mendocino, and Monterey Counties. It is listed as an endangered species on the California state and federal levels. There are three to four subspecies depending on the authority, and each is rare. Description ''Erysimum menziesii'' is a mustardlike biennial or perennial herb which is short in size, reaching maximum heights of usually not more than 15 centimeters. The leaves are long and straight along the stem, and often thicker, hairier, and lobed in shape at the base. The top of the stem is occupied by a thick bunch of flowers with bright yellow, rounded petals. The flowers fall away to leave behind the fruits, which are very long siliques sticking straight out. The plant can vary in appearance, particularly across subspecie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Jackson Hooker
Sir William Jackson Hooker (6 July 178512 August 1865) was an English botanist and botanical illustrator, who became the first director of Kew when in 1841 it was recommended to be placed under state ownership as a botanic garden. At Kew he founded the Herbarium and enlarged the gardens and arboretum. Hooker was born and educated in Norwich. An inheritance gave him the means to travel and to devote himself to the study of natural history, particularly botany. He published his account of an expedition to Iceland in 1809, even though his notes and specimens were destroyed during his voyage home. He married Maria, the eldest daughter of the Norfolk banker Dawson Turner, in 1815, afterwards living in Halesworth for 11 years, where he established a herbarium that became renowned by botanists at the time. He held the post of Regius Professor of Botany at Glasgow University, where he worked with the botanist and lithographer Thomas Hopkirk and enjoyed the supportive friendshi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humboldt Bay (United States)
Humboldt Bay is a natural bay and a multi-basin, bar-built coastal lagoon located on the rugged North Coast of California, entirely within Humboldt County, United States. It is the largest protected body of water on the West Coast between San Francisco Bay and Puget Sound, the second-largest enclosed bay in California, and the largest port between San Francisco and Coos Bay, Oregon. The largest city adjoining the bay is Eureka, the regional center and county seat of Humboldt County, followed by the city of Arcata. These primary cities, together with adjoining unincorporated communities and several small towns, comprise a Humboldt Bay Area with a total population of nearly 80,000 people. This comprises nearly 60% of the population of Humboldt County. The bay is home to more than 100 plant species, 300 invertebrate species, 100 fish species, and 200 bird species. In addition, the bay and its complex system of marshes and grasses support hundreds of thousands of migrating and loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MacKerricher State Park
MacKerricher State Park is a state park in California in the United States. It is located north of Fort Bragg in Mendocino County. It covers of coastline and contains several types of coastal habitat, including beaches, dunes, headlands, coves, wetlands, tide pools, forest, and a freshwater lake.MacKerricher State Park Brochure. California Department of Parks and Recreation. Rev. 2012. Natural features The northern coastline of the park is a long, sloping beach, and the southern section is made up of rocky cliffs and flats separating smaller strips of beach. Inland from the ocean is Lake Cleone, a former that was closed off by the ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygonum Paronychia
''Polygonum paronychia'' is a species of flowering plant in the knotweed family known by the common names dune knotweed, black knotweed, and beach knotweed. It is native to the coastline of western North America from British Columbia to California, where it grows in sandy coastal habitat such as beaches, dunes, and scrub. Description ''Polygonum paronychia'' is a small prostrate or upright shrub producing multibranched brown stems up to a meter (40 inches) long. The stems may root at nodes that come in contact with moist substrate. The leaves are alternately arranged on the stems but are mostly located bunched around the tips of the stem branches. The leaves are linear to lance-shaped with rolled edges and bristly midribs on the undersides. Each leaf has a large stipule which forms a wide, membranous ochrea. The ochrea is up to 2 centimeters (0.8 inches) long and is persistent, fraying into fibrous, silvery shreds that remain on the plant through the seasons. Flowers occur in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cakile Maritima
''Cakile maritima'', sea rocket (Britain and Ireland)Clive Stace, ''New Flora of the British Isles'' 4th edition 2019, p 441 or European searocket (North America), is a common plant in the mustard family Brassicaceae. It is widespread in Europe, North Africa and western Asia, especially on coastlines. It can now be found in many other areas of the world where it has been introduced. It is present on the west and east coasts of North America, where it has the potential to become an invasive species. This is an annual plant which grows in clumps or mounds in the sand on beaches and bluffs. The shiny leaves are fleshy, green and tinted with purple or magenta, and long-lobed. It has white to light purple flowers and sculpted, segmented, corky brown fruits one to three centimetres long. The fruits float and are water-dispersed. Description It is a glabrous, succulent annual, with a slender or stout taproot. It has a branched stem which is prostrate or ascending, growing up to lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambrosia Chamissonis
''Ambrosia chamissonis'' is a species of ragweed known by the common names silver burr ragweed, silver beachweed and (silver) beach bur(r). It is known from most of the coastline of western North America from Alaska to Baja California, where it is a resident of beaches and other sandy coastal habitats. Description ''Ambrosia chamissonis'' is a large, sprawling perennial herb exceeding in maximum width. The stems are roughly or softly hairy and longitudinally ridged. The plentiful leaves are a few centimeters long, woolly and silver-green, and variable in shape. The plant is monoecious, with male and female flowers on each individual. Staminate (male) flower heads containing many pale colored florets occur at the tip of the inflorescence, with pistillate (female) flower heads clustered below them. Each pistillate head contains a single tiny flower which develops into a fruit. The fruit is a brown bur A bur (also spelled burr) is a seed or dry fruit or infructescence that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camissonia Cheiranthifolia
''Camissoniopsis cheiranthifolia'', the beach suncup or beach evening primrose, is a species of the evening primrose family and is native to open dunes and sandy soils of coastal California, Baja California and Oregon. Description The beach suncup grows prostrate along the beach surface, forming mats more than 1 m across. It forms long stems growing from a central crown, lined with silvery grey-green leaves. The prostrate form and swinging stems allow the plant to survive well on the windy, shifting sands of the coast. The four-petalled flowers open in the morning (typical among suncups) and are bright yellow, fading to reddish. Taxonomy This plant is a well-defined diploid (2''n'' = 14) species that has varying floral traits over its geographic distribution. The specific epithet ''cheiranthifolia'' refers to the leaves having the appearance of ''Cheiranthus'', an old name for a wallflower genus. The two subspecies are: * ''Camissoniopsis cheiranthifolia'' subsp. ''ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Bay Area
The San Francisco Bay Area, often referred to as simply the Bay Area, is a populous region surrounding the San Francisco, San Pablo, and Suisun Bay estuaries in Northern California. The Bay Area is defined by the Association of Bay Area Governments to include the nine counties that border the aforementioned estuaries: Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara, Solano, Sonoma, and San Francisco. Other definitions may be either smaller or larger, and may include neighboring counties that do not border the bay such as Santa Cruz and San Benito (more often included in the Central Coast regions); or San Joaquin, Merced, and Stanislaus (more often included in the Central Valley). The core cities of the Bay Area are San Francisco, San Jose, and Oakland. Home to approximately 7.76 million people, Northern California's nine-county Bay Area contains many cities, towns, airports, and associated regional, state, and national parks, connected by a comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disjunct Distribution
In biology, a taxon with a disjunct distribution is one that has two or more groups that are related but considerably separated from each other geographically. The causes are varied and might demonstrate either the expansion or contraction of a species' range. Range fragmentation Also called range fragmentation, disjunct distributions may be caused by changes in the environment, such as mountain building and continental drift or rising sea levels; it may also be due to an organism expanding its range into new areas, by such means as rafting, or other animals transporting an organism to a new location (plant seeds consumed by birds and animals can be moved to new locations during bird or animal migrations, and those seeds can be deposited in new locations in fecal matter). Other conditions that can produce disjunct distributions include: flooding, or changes in wind, stream, and current flows, plus others such as anthropogenic introduction of alien introduced species either acciden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eureka, California
Eureka (Wiyot: ''Jaroujiji'', Hupa: ''do'-wi-lotl-ding'', Karuk: ''uuth'') is the principal city and county seat of Humboldt County in the Redwood Empire region of California. The city is located on U.S. Route 101 on the shores of Humboldt Bay, north of San Francisco and south of the Oregon border. At the 2010 census, the population of the city was 27,191, and the population of Greater Eureka was 45,034. Eureka is the largest coastal city between San Francisco and Portland, Oregon, and the westernmost city of more than 25,000 residents in the 48 contiguous states.Eureka (city), California , State & County QuickFacts, January 10, 2013, note: in data set The proximity to the sea causes the city to have an extremely maritime clim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humboldt Bay National Wildlife Refuge
Humboldt Bay National Wildlife Refuge is located on Humboldt Bay, on the California North Coast near the cities of Eureka and Arcata. The refuge exists primarily to protect and enhance wetland habitats for migratory water birds using the bay area, including tens of thousands of shorebirds, ducks, geese, swans, and the black brant. Humboldt Bay National Wildlife Refuge, along with other public and private lands around Humboldt Bay, is one of the key stopovers for the millions of migratory birds that rely on the Pacific Flyway. More than 200 bird species, including 80 kinds of water birds and four endangered species, regularly feed, rest, or nest on the refuge or other areas around the bay. Ecology The bay provides habitat for approximately 100 species of fish, many of which contribute to sport or commercial fisheries, and provides habitat for fish including steelhead, coho, and Chinook salmon. During the spring, the bay's eelgrass beds are a key staging area for brant goose prior t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathyrus Littoralis
''Lathyrus littoralis'' is a species of wild pea known by the common name silky beach pea. It is native to the coastline of western North America from British Columbia to California. It is a resident of beaches and dunes. This is a perennial herb which grows a patch of hairy gray-green stems along the sandy ground or slightly upright. The woolly leaves are made up of several oval or oblong scoop-shaped leaflets. There are small, tough tendrils but the plant does not use them to climb. The plant produces dense inflorescences of several flowers each one to two centimeters wide. Each flower is bicolored in dark-veined deep pink and white. The fruit is a dehiscent Dehiscence is the splitting of a mature plant structure along a built-in line of weakness to release its contents. This is common among fruits, anthers and sporangia. Sometimes this involves the complete detachment of a part; structures that op ... oval-shaped hairy legume pod. It blooms from late spring to early summe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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