Taxodium ascendens, also known as pond cypress, is a deciduous conifer of the genus Taxodium, native to North America. Many botanists treat it as a variety of bald cypress, Taxodium distichum rather than as a distinct species, but it differs in habitat, occurring mainly in still blackwater rivers, ponds and swamps without silt-rich flood deposits. It predominates in cypress dome habitats.
Panicum (panicgrass) is a large genus of about 450 species of Poaceae grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone. They are often large, annual or perennial grasses, growing to 1–3 m (3–10 ft) tall.
Crepis capillaris, the smooth hawksbeard, is a species of flowering plant in the tribe Cichorieae within the family Asteraceae, and is native to Europe. It has become naturalized in other lands and is regarded as a weed in some places.
Stylidium capillare is a dicotyledonous plant that belongs to the genus Stylidium. It is an annual plant that grows from 6 to 13 cm tall. Obovate or orbicular leaves, about 4-7 per plant, form basal rosettes around the compressed stems. The leaves are generally 1.5–5 mm long and 1–3 mm wide. Petioles are absent. This species usually has one to two scapes per plant and 6–13 cm long inflorescences. Flowers are white and bloom from March to June in the southern hemisphere. S. capillare's distribution ranges from Litchfield National Park in the Northern Territory east to Cooktown Mareeba in northern Queensland, Australia. Its habitat is recorded as being sandy soils in eucalypt woodlands and swampy Melaleuca species communities. S. capillare is most closely related to S. nominatum. Its conservation status has been assessed as secure.
Arctostaphylos silvicola is a species of manzanita known by the common names Bonny Doon or silverleaf manzanita. It is endemic to the sandhills of the southern Santa Cruz Mountains in California's Santa Cruz and Santa Clara counties.
Panicum capillare, known by the common name witchgrass, is a species of grass. It is a native plant to most of North America from the East Coast through all of the West Coast and California. It can be found as an introduced species in Eurasia, and as a weed in gardens and landscaped areas. It grows in many types of habitat.
Tetramolopium is a genus of plants in the tribe Astereae within the family Asteraceae.
Panicum dichotomiflorum, known by the common names fall panicgrass, autumn millet, and fall panicum is a species of Poaceae "true grass". It is native to much of the eastern United States and parts of Canada, and it can be found in the Western United States through California. It may be an introduced species in some western climates. It grows in many types of habitat, including disturbed areas and chaparral habitats.
Sporobolus michauxianus is a species of cordgrass known as prairie cordgrass, freshwater cordgrass, tall marshgrass, and sloughgrass. It is native to much of North America, including central and eastern Canada and most of the contiguous United States except for the southwestern and southeastern regions. Its distribution extends into Mexico. It is also present on other continents as an introduced species.
Puccinellia pumila is a species of grass known by the common names dwarf akaligrass and smooth alkali grass. It is native to North America where it grows along the coastline in the northern latitudes, from Alaska across Arctic northern Canada to Greenland. It occurs on the coast of the Pacific Northwest in the United States and it is known from the Kamchatka Peninsula. The grass is only found on the coast, in wetland habitat, beaches, and areas inundated by the highest tides, in saline sand and mud. This perennial grass grows decumbent or erect to a maximum height near 40 centimeters, often remaining much smaller, especially in harsh habitat. It may root at stem nodes which become buried in wet substrate. The inflorescence is a dense or open array of branches bearing spikelets.
Sagina apetala is a species of flowering plant in the family Caryophyllaceae known by the common names annual pearlwort and dwarf pearlwort. It is native to Europe and it is known elsewhere as an introduced species, including parts of North America. It grows in many types of disturbed habitat, such as cracks in the sidewalk. It is a petite annual herb producing a threadlike stem just a few centimeters long, spreading or growing erect. The plant is glandular and somewhat hairy. The leaves are linear in shape and not more than about a centimeter long. The inflorescence is a solitary flower borne on a threadlike pedicel. The flower has usually four sepals and generally no petals.
Setaria verticillata is a species of grass known by the common names hooked bristlegrass, rough bristle-grass and bristly foxtail. It is native to Europe, but it is known on most continents as an introduced species and often a noxious weed. It is a hardy bunchgrass which grows in many types of urban, cultivated, and disturbed habitat. It is a weed of many types of agricultural crops, growing in vineyards and fields. Herbicide-resistant strains have been noted.
Tetramolopium arenarium is a rare species of flowering plant in the family Asteraceae known by the common name Maui tetramolopium. It is endemic to Hawaii, where it is known only from the island of Hawaii. It is extirpated from Maui. It is threatened by the degradation of its habitat. It is a federally listed endangered species of the United States.
Tetramolopium remyi is a rare species of flowering plant in the family Asteraceae known by the common names Awalua Ridge tetramolopium and Remy's tetramolopium. It is endemic to Hawaii, where today it is known only from the island of Lanai. It is believed to be extirpated on the island of Maui, having not been observed there since 1944. It is threatened by habitat degradation caused by deer, Mouflon, and introduced species of plants. It is a federally listed endangered species of the United States.
Tetramolopium rockii is a rare species of flowering plant in the family Asteraceae known by the common name dune tetramolopium. It is endemic to Hawaii, where it is known only from the island of Molokai. It is threatened by habitat destruction and degradation caused by deer, cattle, introduced species of plants, and off road vehicles. It is a federally listed threatened of the United States.
Hudsonia tomentosa is a species of flowering plant in the rockrose family known by the common names woolly beachheather, beach heather, and sand heather. It is native to northeastern North America, including central and eastern Canada and the northeastern United States.
Sporobolus cynosuroides is a species of grass known by the common names big cordgrass and salt reedgrass. It is native to the East Coast and Gulf Coast of the United States, where it grows in coastal habitat such as marshes, lagoons, and bays.
Sporobolus spartinae is a species of grass known by the common names gulf cordgrass and sacahuista. It is native to the Americas, where it occurs from the Gulf Coast of the United States south to Argentina.
Neoparrya is a monotypic genus of flowering plant in the carrot family Apiaceae. Its only species is Neoparrya lithophila, also known by the common names Bill's neoparrya and rock-loving aletes. It is native to Colorado and New Mexico.
Panicum hillmanii, commonly known as Hillmann's panicgrass, is a grass from genus Panicum native to Southwestern United States. It has been introduced to many other areas, notably including southern Australia where it became widespread, and several parts of Europe.
