Amaranthus albus is an annual species of flowering plant. It is native to the tropical Americas but a widespread introduced species in other places, including Europe, Africa, and Australia.
Prosopis glandulosa, commonly known as honey mesquite, is a species of small to medium-sized, thorny shrub or tree in the legume family (Fabaceae).
Thymophylla is a genus of perennial flowering plants in the tribe Tageteae within the family Asteraceae. Pricklyleaf is a common name for plants in this genus.
Ranunculus arvensis, the corn buttercup or field buttercup, is a plant species in the family Ranunculaceae. Native to Europe, it can be found on other continents as an introduced species and sometimes a weed, including in North America and Australia. It was formerly a common annual arable weed in Britain, but is now rare there. It is most often found in moist places, such as spring puddles in meadows.
Thymophylla pentachaeta, also known as fiveneedle pricklyleaf, golden dyssodia or dogweed, is a perennial or subshrub in the family Asteraceae. The species is native to the southwestern United States and Mexico.
Galinsoga quadriradiata is a species of flowering plant in the family Asteraceae which is known by several common names, including shaggy soldier, Peruvian daisy, hairy galinsoga. Its native home is apparently central Mexico, although it has become naturalized in many other places.
Rostraria cristata, the Mediterranean hairgrass, is an annual grass species which is native to Eurasia and widely naturalised throughout central and eastern Australia.
Erodium cygnorum is a species of herb native to Australia.
Polanisia dodecandra is a species of flowering plant in the Cleomaceae family, known by the common name redwhisker clammyweed or clammyweed, and there are three subspecies of Polanisia. Usually annual, occasionally perennial, Polanisia is native to North America, and is found throughout much of Canada and the United States. It favors full sun, mesic to dry conditions, and barren, sandy or gravelly soils, even highly disturbed areas where there is little other ground vegetation. It looks similar to a close relative, the spider flower (Cleome).
Isolepis setacea is a species of flowering plant in the sedge family known by the common names bristle club-rush and bristleleaf bulrush. It is native to Eurasia and Africa, and possibly Australasia. It can be found in other places, including some areas in North America, where it is an introduced species. It grows in many types of moist and wet habitat, often in coastal regions, and sometimes inland. It is a perennial herb which forms mats of very thin, grooved, erect or arching stems up to about 20 centimeters tall. The leaves sheath the stem bases and have short, flat, thick blades. The inflorescence is a solitary spikelet just a few millimeters long, or a cluster of up to three spikelets. These are accompanied by a stiff bract extending past the flowers.
Silene gallica is a species of flowering plant in the family Caryophyllaceae known by several common names, including common catchfly, small-flowered catchfly, and windmill pink. It is native to Eurasia and North Africa, but it can be found throughout much of the temperate world as a common roadside weed.
Sisymbrium orientale is a species of flowering plant in the family Brassicaceae known by the common names Indian hedgemustard and eastern rocket. It is native to Europe, Asia, and North Africa, and it can be found throughout much of the temperate world as an introduced species and in some areas a common roadside weed. It is an annual herb producing a hairy, branching stem up to about 30 centimeters tall. The basal leaves are divided into deep lobes or toothed leaflets. Leaves higher on the stem have lance-shaped blades with small separate lobes near the base. The top of the stem is occupied by a raceme of flowers with light yellow petals each measuring up to a centimeter long. The fruit is a silique which can be up to 10 centimeters long.
Solanum triflorum is a species of nightshade known by the common names cutleaf nightshade and small nightshade. It is native to Argentina, but it is known on other continents, including Europe and Australia, as an introduced species and sometimes a weed. It is present throughout much of North America, where it is possibly non-native as well. It grows in many types of habitat, including disturbed areas. It is an annual herb producing spreading, decumbent stems up one meter long. It is hairy, the hairs sometimes associated with glands. The leaves are a few centimeters long and are deeply cut into toothlike lobes. The inflorescence bears two or three flowers each just under a centimeter wide when fully open. The flower is usually white, but is occasionally purple-tinged. The fruit is a berry roughly a centimeter wide.
Spergularia media is a species of flowering plant in the family Caryophyllaceae known by the common names media sandspurry and greater sea-spurrey. It is native to Eurasia and the Mediterranean, where it grows in many types of habitat, including disturbed areas, including places with saline substrates, such as salt marshes and beaches. It is known in many other parts of the world as an introduced species and a common roadside weed. In North America it is a "highway halophyte", often springing up at the margins of roads that are heavily salted in the winter.
Sophora tomentosa, also known as necklacepod, yellow necklacepod, and occasionally as silver bush, is a pantropical shrub or small tree in the family Fabaceae. It commonly ranges in height from 4 to 10 feet and often occurs in coastal conditions and near wetlands. The common name Necklacepod is derived from the characteristic string of seed pods that develop after its yellow flowers germinate into seeds.
Thymophylla tephroleuca is a rare species of flowering plant known by the common names ashy pricklyleaf and ashy dogweed. It is endemic to Texas in the United States, where it occurs in two counties near the Mexican border. It became rare due to the destruction and degradation of its habitat. It is a federally listed endangered species of the United States.
Fumaria capreolata, the white ramping fumitory, is an herbaceous annual plant in the poppy family Papaveraceae. It is native to Europe, western Asia and northern Africa and naturalised in southern Australia, New Zealand, and southern South America. Common names include climbing fumitory, ramping fumitory, white fumitory, white ramping fumitory and white-flower fumitory.
Pavonia hastata, commonly known as spearleaf swampmallow or pink pavonia, is a shrub in the family Malvaceae. The species is native to Brazil, Bolivia, Argentina, Paraguay and Uruguay. It was previously considered to be native to Australia as well, but is no longer thought to be.
Carex eburnea, known as ivory sedge, ebony sedge, and bristleleaf or bristle-leaved sedge, is a small and slender sedge native to North America, from Alaska and Newfoundland south to central Mexico.
Ellisia is a genus of flowering plants in the forget-me-not family (Boraginaceae), containing the sole species Ellisia nyctelea. It is native to North America, where it is also known as Aunt Lucy, false baby blue eyes, and waterpod. The genus was named in honor of British naturalist John Ellis, a contemporary of, and correspondent to, Carl Linnaeus. It was published and described by Linnaeus, in his book Species Plantarum ed.2 on page 1662 in 1763.
