Matricaria discoidea, commonly known as pineappleweed, wild chamomile, disc mayweed, and rayless mayweed, is an annual plant native to northeast Asia where it grows as a common herb of fields, gardens, and roadsides. It is in the family Asteraceae. The flowers exude a chamomile/pineapple aroma when crushed. They are edible and have been used in salads and to make herbal tea.
Matricaria is a genus of flowering plants in the chamomile tribe within the sunflower family. Some of the species have the common name of "mayweed," but this name also refers to plants not in this genus.
Crithmum is a monospecific genus of flowering plant in the carrot family Apiaceae, with the sole species Crithmum maritimum, known as rock samphire, sea fennel or samphire. The name "samphire" is also used for several other unrelated succulent halophyte species of coastal plant.
Eryngium maritimum, the sea holly or sea eryngo, or sea eryngium, is a perennial species of flowering plant in the family Apiaceae and native to most European coastlines. It resembles a plume thistle in appearance on account of its burr-shaped flower. Despite its common name, it is not related to true holly, but is an umbellifer.
Tripleurospermum inodorum, common names scentless false mayweed, scentless mayweed, scentless chamomile, wild chamomile, mayweed, false chamomile, and Baldr's brow, is the type species of Tripleurospermum. This plant is native to Eurasia and North Africa, and introduced to North America, where it is commonly found in fields, fallow land and gardens.
Silene dioica, known as red campion and red catchfly, is a herbaceous flowering plant in the family Caryophyllaceae, native throughout central, western and northern Europe, and locally in southern Europe. It has been introduced in Iceland, Canada, the US, and Argentina.
Anthemis cotula, also known as stinking chamomile, or mayweed, is a flowering annual plant with a noticeable and strong odor. The odor is often considered unpleasant, and it is from this that it gains the common epithet "stinking". In pre-colonial times, its distribution was limited to the Old Continent and Africa; though it was established in most of Europe, it was not present in Finland, Ireland, or the northernmost reaches of Scotland, in spite of the fact that these countries feature climatic regions favorable to this plant and are in proximity to countries where the species is native, such as Russia, Estonia, Lithuania and England. It has successfully migrated to the New Europes where it can be found growing in meadows, alongside roads, and in fields.
Rabelera holostea, known as greater stitchwort, greater starwort, and addersmeat, is a perennial herbaceous flowering plant in the family Caryophyllaceae. It was formerly placed in the genus Stellaria, as Stellaria holostea, but was transferred to the genus Rabelera in 2019 based on phylogenetic analyses. It is the only species in the genus Rabelera. Greater stitchwort is native to Western and Central Europe, including the British Isles.
Teucrium scorodonia, common name the woodland germander or wood sage, is a species of flowering plant in the genus Teucrium of the family Lamiaceae. It is native to Western Europe and Tunisia, but cultivated in many places as an ornamental plant in gardens, and naturalized in several regions.
Tripleurospermum is a genus in the chamomile tribe within the sunflower family. Mayweed is a common name for plants in this genus.
Sagina subulata (, the heath pearlwort, Irish-moss, awl-leaf pearlwort or Scottish moss, is a species of flowering plant in the pink and carnation family Caryophyllaceae. It is native to Europe, from Iceland south to Spain, and east to southern Sweden and Romania. It occurs on dry sandy or gravelly soils.
Pancratium maritimum, or sea daffodil, is a species of bulbous plant native to the Canary Islands and both sides of the Mediterranean region and Black Sea from Portugal, Morocco and the Balearic Islands east to Turkey, Syria, Israel and the Caucasus. In the parts of its range on the south Bulgarian and north Turkish and Georgian coasts of Black Sea. It is also naturalized in southern California, Bermuda and the Azores.
Stellaria graminea is a species of flowering plant in the family Caryophyllaceae known by the common names common starwort, grass-leaved stitchwort, lesser stitchwort and grass-like starwort.
Maianthemum stellatum is a species of flowering plant, native across North America. It has been found in northern Mexico, every Canadian province and territory except Nunavut, and from every US state except Hawaii and the states of the Southeast. It has little white buds in the spring, followed by delicate starry flowers, then green-and-black striped berries, and finally deep red berries in the fall.
Selaginella selaginoides is a non-flowering plant of the spikemoss genus Selaginella with a wide distribution around the Northern Hemisphere. It resembles a moss in appearance but is a vascular plant belonging to the division Lycopodiophyta. It has a number of common names including lesser clubmoss, club spikemoss, northern spikemoss, low spikemoss and prickly mountain-moss. This plant has one close relative, Selaginella deflexa, native to Hawaii. These two plants form a small clade that is sister to all other Selaginella species.
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.
Smelowskia ovalis is a species of flowering plant in the mustard family known by the common name alpine false candytuft. It is native to western North America from British Columbia to northern California, occurring mostly in the Cascade Range. It is a plant of alpine climates, growing in high mountain habitat such as talus and fellfields. It is clumpy in shape, producing several hairy stems growing erect to a maximum height around 18 centimeters. The densely hairy leaves are divided into several oval leaflets. The longest leaves are arranged around the base of the plant, and a few smaller ones occur farther up the stems. The inflorescence is a dense, spherical raceme of flowers that elongates as the fruits develop. The flowers have white or pink-tinged petals each a few millimeters long. The fruit is a short silique.
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.
Suaeda nigra, often still known by the former name Suaeda moquinii, is a species of flowering plant in the amaranth family, known by the vernacular names bush seepweed or Mojave sea-blite.
Ranunculus auricomus, known as goldilocks buttercup or Greenland buttercup, is a perennial species of buttercup native to Eurasia. It is a calcicole typically found in moist woods and at the margins of woods. It is apomictic, and several hundred agamospecies have been recognised.
