Senna obtusifolia
Senna obtusifolia, known by common names including Chinese senna, American sicklepod and sicklepod, is a plant in the genus Senna, sometimes separated in the monotypic genus Diallobus. It grows wild in North, Central, and South America, Asia, Africa, and Oceania, and is considered a particularly problematic weed in many places. It has a long-standing history of confusion with Senna tora and that taxon in many sources actually refers to the present species.
Sesame
Sesame is a plant in the genus Sesamum, also called benne. Numerous wild relatives occur in Africa and a smaller number in India. It is widely naturalized in tropical regions around the world and is cultivated for its edible seeds, which grow in pods. World production in 2018 was 6 million tonnes, with Sudan, Myanmar, and India as the largest producers.
Sesuvium portulacastrum
Sesuvium portulacastrum is a sprawling perennial herb in the family Aizoaceae that grows in coastal and mangrove areas throughout much of the world. It grows in sandy clay, coastal limestone and sandstone, tidal flats and salt marshes, throughout much of the world. It is native to Africa, Asia, Australia, Hawai`i, North America and South America, and has naturalised in many places where it is not indigenous.
Silybum marianum
Silybum marianum is a species of thistle. It has various common names including milk thistle, blessed milkthistle, Marian thistle, Mary thistle, Saint Mary's thistle, Mediterranean milk thistle, variegated thistle and Scotch thistle. This species is an annual or biennial plant of the family Asteraceae. This fairly typical thistle has red to purple flowers and shiny pale green leaves with white veins. Once native from Southern Europe through Asia, it has spread throughout the world.
Sison amomum
Sison amomum is one of several species of plant in the genus of Sison, its common name is stone parsley and it is native to Western and Southern Europe, North Africa and Turkey. The species and genus are flowering plants in the family Apiaceae, both of which were first described by Carl Linnaeus, in his book Species Plantarum, originally published in 1753. The plant has many synonyms, having also subsequently been described by other botanists, after Linnaeus, including Jean-Baptiste Lamarck, Richard Anthony Salisbury, Conrad Moench, Emanuel Mendes da Costa, and Albert Thellung among others.
Smilax rotundifolia
Smilax rotundifolia, also known as roundleaf greenbrier or common greenbrier, or bamboo vine in parts of the South, is a woody vine native to the southeastern and eastern United States and eastern Canada. It is a common and conspicuous part of the natural forest ecosystems in much of its native range. The leaves are glossy green, petioled, alternate, and circular to heart-shaped. They are generally 5–13 cm long. Common greenbrier climbs other plants using green tendrils growing out of the petioles.
Solanum
Solanum is a large and diverse genus of flowering plants, which include three food crops of high economic importance: the potato, the tomato and the eggplant. It is the largest genus in the nightshade family Solanaceae, comprising around 1,500 species. It also contains the so-called horse nettles, as well as numerous plants cultivated for their ornamental flowers and fruit.
Solanum carolinense
Solanum carolinense, the Carolina horsenettle, is not a true nettle, but a member of the Solanaceae, or nightshade family. It is a perennial herbaceous plant, native to the southeastern United States, though its range has expanded throughout much of temperate North America. The plant is considered to be invasive in parts of Europe, Asia, Africa and Australia. The stem and undersides of larger leaf veins are covered with prickles.
Solanum mammosum
Solanum mammosum, commonly known as nipplefruit, fox head, cow's udder, or apple of Sodom, is an inedible Pan-American tropical fruit. The plant is grown for ornamental purposes, in part because of the distal end of the fruit's resemblance to a human breast, while the proximal end looks like a cow's udder. It is an annual in the family Solanaceae, and part of the genus Solanum, making the plant a relative of the eggplant, tomato, and potato. This poisonous fruit is native to South America, but has been naturalized in Southern Mexico, Greater Antilles, Central America, and the Caribbean. The plant adapts well to most soils, but thrives in moist, loamy soil.
Solanum nigrum
Solanum nigrum, the European black nightshade or simply black nightshade or blackberry nightshade, is a species of flowering plant in the family Solanaceae, native to Eurasia and introduced in the Americas, Australasia, and South Africa. Ripe berries and cooked leaves of edible strains are used as food in some locales, and plant parts are used as a traditional medicine. Some other species may also be referred to as "black nightshade".
Solanum pseudocapsicum
Solanum pseudocapsicum is a nightshade species with mildly poisonous fruit. It is commonly known as the Jerusalem cherry, Madeira winter cherry, or, ambiguously, "winter cherry". These perennials can be grown decoratively as house plants, but in some areas of South Africa, India, Australia and New Zealand it is regarded as a weed.
Sonchus oleraceus
Sonchus oleraceus is a species of flowering plant in the tribe Cichorieae of the family Asteraceae, native to Europe and Western Asia. It has many common names including common sowthistle, sow thistle, smooth sow thistle, annual sow thistle, puha, hare's colwort, hare's thistle, milky tassel, milk thistle, and soft thistle.
Spearmint
Spearmint, also known as garden mint, common mint, lamb mint and mackerel mint, is native to Europe and southern temperate Asia, extending from Ireland in the west to southern China in the east. It is naturalized in many other temperate parts of the world, including northern and southern Africa, North America, and South America. It is used as a flavouring in food and herbal teas. The aromatic oil, called oil of spearmint, is also used as a flavoring and sometimes as a scent.
Spikenard
Spikenard, also called nard, nardin, and muskroot, is a class of aromatic amber-colored essential oil derived from Nardostachys jatamansi, a flowering plant in the honeysuckle family which grows in the Himalayas of Nepal, China, and India. The oil has been used over centuries as a perfume, a traditional medicine, or in religious ceremonies across a wide territory from India to Europe. Historically, the name nard has also referred to essential oils derived from other species including the closely related valerian genus, as well as Spanish lavender; these cheaper, more common plants have been used in perfume-making, and sometimes to adulterate true spikenard.
Stephania
Stephania is a genus of flowering plants in the family Menispermaceae. It includes 70 species native to tropical and southern Africa, eastern and southern Asia, Australia, and the tropical Pacific Islands. They are herbaceous perennial vines, growing to around four metres tall, with a large tuber. The leaves are arranged spirally on the stem and are peltate, with the leaf petiole attached near the centre of the leaf. The name Stephania comes from the Greek, "a crown". This refers to the anthers being arranged in a crown-like manner.
Streptosolen
Streptosolen is a monotypic genus of flowering plants in the family Solanaceae. It is closely related to the genus Browallia, within which it was originally placed. The single species, Streptosolen jamesonii, the marmalade bush or fire bush, is an evergreen shrub bearing loose clusters of flowers which change gradually from yellow to red as they develop, resulting in an overall appearance resembling orange marmalade, found in open woodlands in Colombia, Venezuela, Ecuador, and Peru. The plant has become naturalized in certain localities in Hawaii.
Strychnos nux-vomica
Strychnos nux-vomica, the strychnine tree, also known as nux vomica, poison fruit, semen strychnos, and quaker buttons, is a deciduous tree native to India and to southeast Asia. It is a medium-sized tree in the family Loganiaceae that grows in open habitats. Its leaves are ovate and 5–9 centimetres (2–3.5 in) in size. It is known for being the natural source of the extremely poisonous compound strychnine.
Styphnolobium
Styphnolobium is a genus of flowering plants in the pea family, Fabaceae. It includes nine species of small trees and shrubs native to China and to the Americas, from the southern United States to Colombia. It belongs to subfamily Faboideae, and was formerly included within a broader interpretation of the genus Sophora. It was recently assigned to the unranked, monophyletic Cladrastis clade. They differ from the genus Calia (mescalbeans) in having deciduous leaves and flowers in axillary, not terminal, racemes. The leaves are pinnate, with 9–21 leaflets, and the flowers in pendulous racemes similar to those of the black locust. Necklacepod is a common name for plants in this genus.
Sumac
Sumac or sumach —not to be confused with poison sumac—is any of the roughly 35 species of flowering plants in the genus Rhus of the cashew and mango tree family, Anacardiaceae. However, it is Rhus coriaria that is most commonly used for culinary purposes. Sumac is prized as a spice—especially in Iranian cuisine, and other Eastern cuisines—and used as a dye and holistic remedy. The plants grow in subtropical and temperate regions, on nearly every continent except Antarctica and South America.
Native to Persia, it holds cultural significance as a symbolic item on the Haft-sin table during Nowruz, the Persian New Year.
Syzygium cumini
Syzygium cumini, also known as Malabar plum, Java plum, black plum, jamun, jaman, jambul, jambolan or Indian blackberry, is an evergreen tropical tree in the flowering plant family Myrtaceae, and favored for its fruit, timber, and ornamental value. It is native to the Indian subcontinent and Southeast Asia. It can reach heights of up to 30 m (100 ft) and can live more than 100 years. A rapidly growing plant, it is considered an invasive species in many world regions.