299 articles
Ixora
Ixora is a pantropical genus of about 545 Rubiaceae shrubs and small trees, also called flame of the woods or jungle geranium (I. coccinea), known for showy 4-merous tuberous flower clusters, ornamental hedges, and Ayurvedic medicinal use.
Ixora coccinea
Ixora coccinea (flame-of-the-woods, jungle geranium, scarlet jungleflame) is a Rubiaceae shrub native from India to Indo-China, grown tropically worldwide for red flower clusters, with folk-medicinal root and flower uses.
Jacaranda
Jacaranda Juss. is a Neotropical genus of about 51 tree and shrub species in Bignoniaceae, native from tropical America to northern Argentina; Jacaranda mimosifolia, with blue-violet flowers, is a famous ornamental street tree worldwide.
Jacaranda mimosifolia
Jacaranda mimosifolia, the blue jacaranda, a South American Bignoniaceae tree with lavender-blue trumpet flowers, widely planted as a street tree but an environmental weed in Australia and South Africa.
Jasmine
Jasminum, the jasmine genus, is a group of about 200 accepted Oleaceae shrubs and vines native to the Old World tropics, with fragrant white or yellow tubular flowers, including cultivated species like J. sambac.
Jasminum officinale
Jasminum officinale, common or poet's jasmine (su fang hua), a scrambling Oleaceae shrub native from Transcaucasus to south-central China, long cultivated for fragrant flowers used in perfume, medicine, and food.
Jasminum sambac
Jasminum sambac, Arabian jasmine or sampaguita, is a South Asian Oleaceae shrub used for jasmine tea, perfume, and religious garlands; national flower of the Philippines and Indonesia.
Kigelia
Kigelia (sausage tree, Kigelia africana, worsboom, muratina) is a monotypic African Bignoniaceae genus with large toxic sausage fruits up to 90 cm, bat-pollinated night flowers, and about 150 characterized phytochemicals used in African traditional medicine and skin products.
Knautia
Knautia (scabious) is a Caprifoliaceae genus of about 40-61 herb species native from Europe to Siberia and Central Asia; best known is field scabious (Knautia arvensis), a gynodioecious, ant-dispersed, insect-pollinated perennial prone to hybridisation and polyploidy.
Lamiaceae
Lamiaceae (Labiatae), the mint family, is a cosmopolitan Lamiales family of about 236 genera and over 7,000 species, sixth largest among angiosperms, with opposite leaves, four-stamened zygomorphic flowers, and major culinary and aromatic uses.
Lamiales
Lamiales, also known as Scrophulariales or Lamiiflorae, is a large order of flowering plants with over 20,000 species worldwide, including mints, olives, sesame, and foxgloves, named in 1993.
Lamium
Lamium (dead-nettles) is a genus of annual or perennial herbs in the mint family, Lamiaceae, native to temperate Eurasia, Macaronesia to Ethiopia. About 32 accepted species; nettle-like leaves that do not sting; two-lipped flowers; includes L. album, L. purpureum, L. galeobdolon.
Lamium galeobdolon
Lamium galeobdolon (yellow archangel; syn. Lamiastrum galeobdolon, Galeobdolon luteum) is a stoloniferous perennial mint native to Europe to W. Siberia and Iran, with yellow hooded flowers, used as ground cover; its variegated subspecies argentatum is invasive.
Lamium purpureum
Lamium purpureum, purple or red dead-nettle, is a mint-family winter annual weed native from Macaronesia and Europe to West Siberia, introduced in North America and Japan; square stems, purple-tinged petioled upper leaves, and pinkish-purple flowers distinguish it from henbit.
Lantana camara
Lantana camara, also known as West Indian lantana, is a flowering shrub native to tropical America and one of the world's most widely distributed invasive weeds.
Lavandula
Lavandula (lavenders), a genus of about 41 aromatic Lamiaceae species native from Macaronesia to India, cultivated for essential oil rich in linalool and linalyl acetate; key species are L. angustifolia and the hybrid lavandin L. × intermedia.
Lavandula angustifolia
Lavandula angustifolia (English lavender, true lavender, synonym L. officinalis) is a Lamiaceae subshrub native to NE Spain to Italy, grown for linalool- and linalyl acetate-rich essential oil and hardiness.
Lavandula x intermedia
Lavandula x intermedia (lavandin, Dutch or bastard lavender) is a sterile hybrid of true lavender and spike lavender, native to SE France and NE Spain, the most cultivated lavender, yielding about 120 kg oil/ha with camphor notes.
Lemon balm
Lemon balm (Melissa officinalis, sweet balm, toronjil) is a lemon-scented Lamiaceae perennial herb native from the Mediterranean to Central Asia, grown as a culinary and medicinal herb; rich in rosmarinic acid and citronellal, studied for anxiety and sleep.
Lentibulariaceae
Lentibulariaceae, the bladderwort family (Lentibulariaceae Rich., 1808), is the largest carnivorous plant family in Lamiales, with three genera: Pinguicula (flypaper traps), Genlisea (eel traps), and Utricularia (suction bladders).
Leonurus
Leonurus (motherwort), Lamiaceae genus of about 25 temperate Eurasian herb species; source of alkaloids leonurine and stachydrine, used as uterotonic in East Asia and sedative in Europe.
Ligustrum lucidum
Ligustrum lucidum, known as glossy privet, is an evergreen tree in the olive family native to China; its ripe fruits are used in traditional Chinese medicine.
Ligustrum vulgare
Ligustrum vulgare (European, common, or wild privet), Oleaceae shrub native from NW Africa and Europe to NW Iran, long grown for hedges; invasive in parts of North America, less damaging than Chinese privet.
Linaria vulgaris
Linaria vulgaris (yellow toadflax, butter-and-eggs, common toadflax) is a Eurasian perennial plantain with yellow spurred snapdragon-like flowers, invasive in North America via seeds and root buds, noxious in 10 U.S. states.
Lippia alba
Lippia alba (bushy lippia, bushy matgrass, erva-cidreira), Verbenaceae, is an aromatic American shrub used in traditional medicine as a sedative and digestive remedy, with seven essential-oil chemotypes (citral, carvone, linalool) and inclusion in the Brazilian Pharmacopeia.
Lithospermum
Lithospermum (gromwells, marbleseeds), a Boraginaceae genus of ca. 80 species native to Old and New Worlds, center of diversity in Mexico; L. erythrorhizon roots yield the medicinal red pigment shikonin (zicao).
Loganiaceae
Loganiaceae (loganias) is a conserved family name in Gentianales with 16 genera and about 400 species, including Strychnos and Spigelia; once polyphyletic, now circumscribed as sister to Apocynaceae.
Lycium
Lycium (goji, wolfberry) is a Solanaceae genus of 75–101 spiny shrub species with red, black, or yellow berries, cosmopolitan in arid regions, including the medicinal L. barbarum and salt-tolerant L. ruthenicum.
Lycopus europaeus
Lycopus europaeus, gypsywort or European bugleweed, is a perennial Lamiaceae wetland herb native from the Azores and NW. Africa to Siberia and the W. Himalaya, introduced in North America and New Zealand, IUCN Least Concern, rich in rosmarinic acid.
Lysimachia arvensis
Lysimachia arvensis (scarlet pimpernel, formerly Anagallis arvensis) is a Mediterranean annual herb of Primulaceae with red or blue flowers, a widespread introduced weed, tetraploid and self-compatible, mildly toxic to livestock.