Tetraneuris herbacea | |
---|---|
Scientific classification | |
Kingdom: | |
(unranked): | |
(unranked): | |
(unranked): | |
Order: | |
Family: | |
Genus: | |
Species: | T. herbacea |
Binomial name | |
Tetraneuris herbacea Greene 1898 | |
Synonyms [1] | |
|
Tetraneuris herbacea [2] [3] [4] [5] [6] is a rare species of flowering plant in the aster family known by the common names eastern fournerved daisy, [7] lakeside daisy, fournerved starflower, and Manitoulin gold. It is native to and endemic to the Great Lakes region in North America, where it is present in Ontario, Ohio, Michigan, and Illinois. [8] It is threatened by habitat destruction and degradation by several forces, including limestone quarrying, recreational activity, fire suppression, and construction. [4] It is a federally listed threatened species of the United States and of Canada. [5]
Tetraneuris herbacea is a perennial herb growing from a branching caudex with one or more erect stems measuring 6 to about 35 centimeters (2.4-14.0 inches) tall. The leaves are located around the base of the plant and have rubbery, glandular blades. The inflorescence is a single flower head borne on a hairy peduncle. The head contains 50-250 yellow disc florets surrounded by 7-27 (occasionally 0) yellow ray florets each ray measuring 1 or 2 centimeters (0.4-0.8) in length. The fruit is an achene tipped with a pappus of scales. [6]
Tetraneuris herbacea is known from just a few natural and introduced populations. In Ontario there are about 20 populations all located at the shores of Lake Huron on the Bruce Peninsula and Manitoulin Island. [4] [5] In Ohio, the plant only occurs naturally in Ottawa County, [9] where it can be found at the Lakeside Daisy State Nature Preserve, a protected area named in its honor. There is an introduced population on Kelleys Island, Ohio, as well. In Illinois, naturally occurring lakeside daisies were last seen in 1981, [4] and today the daisies occurring there are introduced populations in nature preserves. [9] In Michigan there is one population in Mackinac County on the Upper Peninsula, which may or may not be naturally occurring. [9]
Tetraneuris herbacea occurs on alvars, a type of limestone pavement with little plant cover. These rocky outcrops have thin, alkaline soils and are quite dry in the dry seasons, making them inhospitable for many other plant species, so the lakeside daisy grows in unshaded full sun. [4] In Michigan the habitat is based on tufa and marl, different types of limestone substrate. [9]
Tetraneuris herbacea is threatened by the loss of its habitat. The limestone plain where it grows naturally in Ohio, the largest population within the bounds of the United States, is privately owned by a quarrying company that mines the rock. [9] The spoils of the quarry are dumped directly on top of clumps of the flower. [9] Recreational activity such as the use of off-road vehicles damages the habitat. [9] In some areas supporting the plant, lack of a natural fire regime allows ecological succession to occur in the nearly barren habitat, so that woody vegetation grows and blocks sunlight. [9] The plant is limited to a rare type of habitat and its populations are small. Because each plant requires pollen from an unrelated individual in order to reproduce, small, widely spaced populations make reproduction difficult. [9]
The USFWS 2016 final ruling as a part of its Five year Review of recovery efforts for the Lakeside Daisy identified threats to survival as habitat destruction, succession of competitive overgrowth by woody species, over-acting for gardens, inadequacy of existing regulatory mechanisms, and self-incompatibility. [10] Since the Lakeside Daisy requires a strictly dry, limestone-based habitat, climate change is likely to have a significant impact on existing natural populations. As quarry operations continue in these habitats, the areas best suited for Lakeside Daisy growth will likely fill with water and develop into small lakes. [11] These changes to the natural habitat, if unchecked, will eradicate some of the plant's most populated centers. Historically, alvar habitat cannot be unnaturally created, and even attempts to restore altered land have not led to successful, diverse ecosystems. [12] In an effort to help nearby land be more suitable for the plant to expand, wooded areas specifically near the Ohio populations may require management and clearing. On a positive note, once a proper site is populated, competition with other species is limited since few other plants can thrive in the alvar ecosystems. [10] Nonetheless, in recent years Lakeside Daisies have faced competition from native prairie plants, which often create a dense organic layer of soil. This presents a problem for the daisy by reducing sunlight and adding soil suitable for more competitive plants. [13] Through observation as part of the Recovery Plan, bumble bees, small carpenter bees, and halictid bees have been recorded as pollinators for the daisy. A few other species of insects, including the Pearl Crescent butterfly have been found to pollinate Lakeside Daisy flowers. [14] The role of these insects has been shown to be impactful, specifically with the smaller populations of the plant, in combatting the natural struggle with self-incompatibility. A 2007 study found that although the small populations of the Lakeside Daisy suffer from a lack of mates, they are more frequently visited by pollinating insects. Thus, despite population size. the Lakeside Daisy is rarely found to be pollen limited. [15]
A wildlife garden is an environment created by a gardener that serves as a sustainable haven for surrounding wildlife. Wildlife gardens contain a variety of habitats that cater to native and local plants, birds, amphibians, reptiles, insects, mammals and so on. Establishing a garden that emulates the environment before the residence was built and/or renders the garden similar to intact wild areas nearby (rewilding) will allow natural systems to interact and establish an equilibrium, ultimately minimizing the need for gardener maintenance and intervention. Wildlife gardens can also play an essential role in biological pest control, and also promote biodiversity, native plantings, and generally benefit the wider environment.
An alvar is a biological environment based on a limestone plain with thin or no soil and, as a result, sparse grassland vegetation. Often flooded in the spring, and affected by drought in midsummer, alvars support a distinctive group of prairie-like plants. Most alvars occur either in northern Europe or around the Great Lakes in North America. This stressed habitat supports a community of rare plants and animals, including species more commonly found on prairie grasslands. Lichen and mosses are common species. Trees and bushes are absent or severely stunted.
Helianthus is a genus comprising about 70 species of annual and perennial flowering plants in the daisy family Asteraceae. Except for three South American species, the species of Helianthus are native to North America and Central America. The common names "sunflower" and "common sunflower" typically refer to the popular annual species Helianthus annuus, whose round flower heads in combination with the ligules look like the sun. This and other species, notably Jerusalem artichoke, are cultivated in temperate regions and some tropical regions as food crops for humans, cattle, and poultry, and as ornamental plants. The species H. annuus typically grows during the summer and into early fall, with the peak growth season being mid-summer.
Jasione montana is a low-growing plant in the family Campanulaceae found in rocky places and upland regions of Europe and western Asia. Common names include sheep's-bit, blue bonnets, blue buttons, blue daisy and iron flower. Due to the similarity of the common name of "sheep's-bit" with that of devil's-bit scabious, it is sometimes called "sheep's-bit scabious" or "sheep scabious", but it is not related to the scabiouses.
Echinacea laevigata, the smooth purple coneflower, is an Endangered Species Act federally listed endangered species of plant found in the piedmont of the eastern United States. Most populations are found on roadsides and other open areas with plenty of sunlight, often on calcium- and magnesium- rich soils.
Solidago shortii, commonly known as Short's goldenrod, is a species of goldenrod in the sunflower family. The only known populations of Short's goldenrod occur around the Blue Licks Battlefield State Park area of Kentucky and Harrison-Crawford State Forest in Indiana. It was listed on the Federal Register of Endangered Species on September 5, 1985, and was given a global rank of G1 on February 29, 2000.
Erigeron annuus, the annual fleabane, daisy fleabane, or eastern daisy fleabane, is a species of herbaceous, annual or biennial flowering plant in the daisy family Asteraceae.
Astragalus phoenix is a rare species of milkvetch known by the common name Ash Meadows milkvetch. It is endemic to Nye County, in southwestern Nevada.
Castilleja levisecta is a rare species of flowering plant in the family Orobanchaceae known by the common name golden paintbrush, or golden Indian paintbrush, listed under the Endangered Species Act in 1997. It is native to British Columbia and Washington, where it is known from eleven remaining populations. It occurred in Oregon but all natural occurrences there have been extirpated. It has been reintroduced to a few areas in Oregon, but it remains to be seen if the plants will survive. The plant is a federally listed endangered species of Canada and was listed as threatened in the United States in 1997. On June 30, 2021, the plant was proposed for delisting due to recovery.
Clematis morefieldii is a rare species of flowering plant in the buttercup family known by the common names Morefield's leather flower and Huntsville vasevine.
Clematis socialis is a rare species of flowering plant in the buttercup family known by the common name Alabama leather flower. It is native to the US states of Alabama and Georgia, where it is known from only five populations. The species is seriously threatened by habitat destruction. It is a federally listed endangered species.
Deinandra conjugens is a rare species of flowering plant in the aster family known by the common names Otay tarplant and Otay tarweed. It is native to a small section of far northern Baja California in Mexico, its range extending north into San Diego County, California, in the United States. One isolated population has been reported from the hills east of Cayucos in San Luis Obispo County.
Polygala lewtonii is a rare species of flowering plant in the milkwort family known by the common name Lewton's polygala, or Lewton's milkwort. It is endemic to Florida in the United States, where it is limited to the central ridge of the peninsula. There are about 49 occurrences of the plant remaining. Most occurrences contain very few plants. The species is threatened by the loss and degradation of its habitat. This is a federally listed endangered species of the United States.
Spiranthes diluvialis is a rare species of orchid known as Ute lady's tresses. The species name diluvialis means "of the flood". It is native to the western United States, where there are scattered, mostly small occurrences in the states of Colorado, Idaho, Montana, Nebraska, Nevada, Utah, Washington, and Wyoming. An occurrence was recently discovered in southern British Columbia. The plant faces a number of threats to its existence. It is a federally listed threatened species of the United States.
Townsendia aprica is a rare species of flowering plant in the aster family known by the common name Last Chance Townsend daisy. It is endemic to Utah in the United States, where it is known from three counties. It faces a number of threats and it is a federally listed threatened species of the United States.
Erigeron maguirei is a species of flowering plant in the aster family known by the common names Maguire daisy and Maguire's fleabane. It is endemic to Utah in the United States. It is a perennial herb growing up to 28 centimetres tall. It grows from a taproot and a branching caudex. The stems are densely hairy. The inflorescence holds one to five flower heads each with several hairy, glandular phyllaries. The head has up to 20 white, pink-tinged, or pink ray florets 0.6 to 0.8 centimeters long, and many yellow disc florets at the center.
Eucephalus vialis is a rare North American species of flowering plant in the aster family known by the common name wayside aster. It is native to southwestern Oregon and northwestern California in the United States.
Symphyotrichum georgianum is a rare species of flowering plant in the Asteraceae, the aster family. Its common name is Georgia aster. It is native to the southeastern United States where it is known from Alabama, Florida, Georgia, North Carolina, and South Carolina. As of 2013, it may be extirpated from the state of Florida.
Delphinium exaltatum, known by the common name tall larkspur, is a species of flowering plant in the genus Delphinium, part of the buttercup family. Other Delphinium species are also commonly known as tall larkspur, such as Delphinium barbeyi. D. exaltatum is native to the central and eastern United States, where it can be found in Kentucky, Maine, Ohio, Pennsylvania, Maryland, West Virginia, Virginia, North Carolina, Alabama, Tennessee, and Missouri.
Protea pruinosa, also known as frosted sugarbush or burnished protea, is a flowering shrub which belongs to the genus Protea within the botanical family Proteaceae. The plant is endemic to the southwestern Cape Region of South Africa.
Wikimedia Commons has media related to Tetraneuris herbacea . |