Plants named in 1793

The sweet potato or sweetpotato (Ipomoea batatas) is a dicotyledonous plant in the morning glory family, Convolvulaceae. Its sizeable, starchy, sweet-tasting tuberous roots are used as a root vegetable, which is a staple food in parts of the world. Cultivars of the sweet potato have been bred to bear tubers with flesh and skin of various colors. Moreover, the young shoots and leaves are occasionally eaten as greens. The sweet potato and the potato are only distantly related, both being in the order Solanales. Although darker sweet potatoes are often known as yams in parts of North America,

Vicia villosa, known as the hairy vetch, fodder vetch or winter vetch, is a plant native to some of Europe and western Asia. It is a legume, grown as a forage crop, fodder crop, cover crop, and green manure. Although non-native, it occurs in all US states and is considered invasive by some states, such as Alaska, Florida, Georgia, Kansas, Michigan, Minnesota, Nebraska, Oregon, and Washington state — as well as in Japan and some parts of Europe where it is not native. It is also found in most Canadian provinces. Hairy vetch is very similar to tufted vetch (Vicia cracca), the most noticeable

Amelanchier ovalis, commonly known as snowy mespilus (a name which is also attached to the related A. lamarckii) or serviceberry, is a deciduous shrub in the family Rosaceae. Its pome fruits are edible and can be eaten raw or cooked. The species is native to central and southern Europe, as well as North Africa and the Middle East.

Cyathea is a genus of tree ferns, the type genus of the fern order Cyatheales. The genus name Cyathea is derived from the Greek kyatheion, meaning "little cup", and refers to the cup-shaped sori on the underside of the fronds.

Lotus pedunculatus (formerly Lotus uliginosus), the big trefoil, greater bird's-foot-trefoil or marsh bird's-foot trefoil, is a member of the pea family (Fabaceae). It is a herbaceous perennial growing throughout Europe in damp, open locations. As one common name suggests, it is a larger plant than related Lotus species, growing 20–80 cm (8–30 in) tall, with leaflets 10–25 mm (0.4–1 in) long and 10–20 mm (0.4–0.8 in) broad. Five to twelve golden-yellow flowers 10–18 mm (0.4–0.7 in) long are borne in an umbel at the tip of the upright stem. Unlike related species, the stem is always hollow,

Amelanchier canadensis (also known as Canadian serviceberry, thicket serviceberry, shad-blow serviceberry, shad-blow, shadbush serviceberry, shadbush, bilberry, juneberry, sarvis, sugarplum, currant-tree) is a species of Amelanchier native to eastern North America in Canada from Newfoundland west to southern Ontario, and in the United States from Maine south to Alabama. It is largely restricted to wet sites, particularly on the Atlantic coastal plain, growing at altitudes from sea level up to 200 m.

Cotoneaster integerrimus, the common cotoneaster, is a species of Cotoneaster native to central and eastern Europe and southwest Asia, from southern Belgium and eastern France south to Italy, and east through Germany to the Balkans, northern Turkey, the Crimea, the Caucasus and northern Iran; plants in Spain may also belong in this species. In the past, it was treated in a wider sense, including plants from Wales now split off as Cotoneaster cambricus and plants from Scandinavia now treated as Cotoneaster scandinavicus, but differs from these in genetic profile and detail of foliage and

Ophrys lutea, the yellow bee-orchid, is a species of orchid native to southern Europe, North Africa, and the Middle East, the range extending from Portugal and Morocco to Syria.

Ophrys scolopax, known as the woodcock bee-orchid or woodcock orchid, is a species of terrestrial orchid found around the Mediterranean and the Middle East, from Morocco and Portugal to Hungary and Iran.

Furcraea is a genus of succulent plants belonging to the family Asparagaceae, native to tropical regions of Mexico, the Caribbean, Central America and northern South America. Some species are also naturalized in parts of Africa, the United States (Florida), Portugal, Thailand, India, and Australia, as well as on various oceanic islands. Plants of this genus are the origin of fique or cabuyo, a natural fiber.

Ulmus rubra, the slippery elm, is a species of elm native to eastern North America. Other common names include red elm, gray elm, soft elm, moose elm, and Indian elm. It is closely related to the European wych elm (U. glabra), which has a very similar flower structure but lacks the pubescence over the seed.

Scirpus radicans is a species of flowering plant belonging to the family Cyperaceae. Its native range is Europe to Japan.

Tagetes tenuifolia, the signet marigold, golden marigold or lemon marigold, is a North American species of the wild marigold in the family Asteraceae.

Boscia senegalensis, commonly known as hanza, is a member of the family Capparaceae. The plant originated from West Africa. Still a traditional food plant in Africa, this little-known fruit has potential to improve nutrition, boost food security, foster rural development and support sustainable landcare. It produces products for consumption, household needs, and medicinal and agricultural uses.

Atriplex sagittata is a species of flowering plant belonging to the family Amaranthaceae. Its native range is Central and Eastern Europe to Central Asia. It is an annual plant that grows mainly in the temprate biome

Carex obtusata (also known as obtuse sedge) is a species of sedge in the massive genus Carex. It is native to Canada.

Woodwardia radicans, the chain fern, European chain fern or rooting chainfern, is a species of fern in the family Blechnaceae, mainly found in Macaronesia and southwestern Europe, but is also found in southern Italy and Crete. Growing to 1.8 m (6 ft) tall by 2 m (7 ft) broad, it is evergreen with arching fronds. The pinnae have curved, finely-toothed segments. The plant derives its common name from the linked sori on the undersides of the fronds. The specific epithet radicans means "with stems that take root", referring to rooting plantlets appearing at the tips of the fronds. This plant is

Styphelia is a genus of shrubs in the family Ericaceae, native from Indo-China through the Pacific to Australia. Most have minute or small leaves with a sharp tip, single, tube-shaped flowers arranged in leaf axils and with the ends of the petals rolled back with hairs in the inside of the tube.

Hymenophyllum is a genus of ferns in the family Hymenophyllaceae. Its name means "membranous leaf", referring to the very thin translucent tissue of the fronds, which gives rise to the common name filmy fern for this and other thin-leaved ferns. The leaves are generally only one cell thick and lack stomata, making them vulnerable to desiccation. Consequently, they are found only in very humid areas, such as in moist forests and among sheltered rocks. They are small and easy to overlook.

Davallia (deersfoot fern, hare's foot fern, shinobu fern, rabbit foot fern, ball fern) is a genus of about 40 species of fern. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Davalliaceae, which is placed in the suborder Polypodiineae, order Polypodiales. Alternatively, the family may be placed in a very broadly defined family Polypodiaceae sensu lato as the subfamily Davallioideae. The family is sister to the largest family of ferns, Polypodiaceae, and shares some morphological characters with it. Species are epiphytic ferns, with fronds

Woodwardia is a genus of ferns in the family Blechnaceae, in the suborder Aspleniineae (eupolypods II) of the order Polypodiales. Species are known as netted-chain ferns. The genus is native to warm temperate and subtropical regions of the Northern Hemisphere. They are large ferns, with fronds growing to 50–300 cm long depending on the species. The fossil record of the genus extends to the Paleocene.

Phyteuma (P) nigrum, the black rampion, is a relatively rare species of plant in the family Campanulaceae. P. nigrum is located in central to northern Europe, primarily concentrated in Scandinavia. Much progress is yet to be made in forming concrete evolutionary relationships within this family and between the genera, but the molecular data from P. nigrum has contributed to the progress made in completing the evolutionary tree. The decrease in P. nigrum numbers over the past few decades has prompted the investigation into the reasons behind such a decline, leading to the conclusion that the

Milla, the Mexican star, is a genus of monocotyledonous plants in the family Asparagaceae, subfamily Brodiaeoideae. They are native mostly to Mexico, with one species extending into Guatemala, Honduras, Arizona, Texas and New Mexico. Milla contains ten accepted species: Milla biflora Cav. - widespread across most of Mexico plus Arizona, New Mexico, Texas, Guatemala and Honduras Milla bryanii I.M.Johnst. - Coahuila Milla delicata H.E.Moore - Guerrero Milla filifolia T.M.Howard - Morelos Milla magnifica H.E.Moore - Guerrero, Morelos Milla mexicana T.M.Howard - Puebla, Oaxaca Milla mortoniana

Davallia canariensis, the hare's-foot fern, is a species of fern in the family Davalliaceae. It is endemic to Macaronesia and the Iberian Peninsula. It grows well in a sunny atmosphere and amongst rocks.

Boscia is a genus of plants in the family Capparaceae. It contains the following species:

Banksia spinulosa, the hairpin banksia, is a species of woody shrub, of the genus Banksia in the family Proteaceae, native to eastern Australia. Widely distributed, it is found as an understorey plant in open dry forest or heathland from Victoria to northern Queensland, generally on sandstone though sometimes also clay soils. It generally grows as a small shrub to 2 metres (7 ft) in height, though can be a straggly tree to 6 metres (20 ft). It has long narrow leaves with inflorescences which can vary considerably in coloration; while the spikes are gold or less commonly yellowish, the

Allium siculum (syn. Nectaroscordum siculum), known as honey garlic, Sicilian honey lily, Sicilian honey garlic, or Mediterranean bells, is a species of plant in the genus Allium. Native to parts of Europe and the Middle East, the species is grown commercially as an ornamental and culinary herb.

Zaluzianskya is a genus of flowering plants now regarded as a member of the Scrophulariaceae, the figwort family. The genus is endemic to Southern Africa and includes some described sixty species.

Salvia involucrata, the roseleaf sage, is a species of flowering plant in the sage family Lamiaceae. This herbaceous perennial is native to the Mexican states of Puebla, Tamaulipas, and Veracruz, growing in shady places such as the edge of forests. Its specific epithet involucrata refers to the prominent flower bracts, which are large and colorful.

Crataegus calpodendron is a species of hawthorn native to much of the eastern United States and to Ontario, Canada. The common name late hawthorn refers to the flowering time, which is later than most North American hawthorns. According to James B. Phipps, this species may be the male parent of Crataegus × lavalleei.