4,295 articles
Frullania
Frullania Raddi, 1818: sole genus of Frullaniaceae, largest genus of liverwort order Porellales, 300-375+ species worldwide except Antarctica; epiphytic, reddish, water-sac lobules, eleven subgenera.
Fuchsia
Fuchsia, genus of about 108 flowering plant species in Onagraceae, native from Mexico to tropical South America, New Zealand, and Tahiti; named by Plumier after Leonhart Fuchs; known for pendulous two-tone flowers, edible berries, and thousands of garden hybrids.
Fuji (apple)
Fuji (ふじ) apple, a Japanese cultivar from a 1939 Ralls Janet × Delicious cross, registered 1962; the world's most-produced apple, sweet, crisp, and storable up to 8 months in controlled atmosphere.
Fumaria
Fumaria (fumitories, Erdrauch) is a genus of about 46-54 annual Papaveraceae herbs from Europe to India, with spurred irregular flowers, one-seeded nutlets, isoquinoline alkaloids such as protopine, and traditional medicinal use in Ayurveda, Unani, and European herbal medicine.
Fumaria officinalis
Fumaria officinalis (common fumitory, earth smoke) is an annual Papaveraceae herb native to Europe to the Caucasus, used medicinally; protopine is its main alkaloid and it has an EU herbal monograph.
Funaria
Funaria is a genus of annual Funariaceae mosses (type species F. hygrometrica, bonfire moss), defined by a compound annulus, hygroscopic twisted seta, and double peristome; monophyletic sister to the Entosthodon-Physcomitrium complex.
Funariales
Funariales, an order of mosses (Bryopsida, Funariidae) with families Disceliaceae and Funariaceae; includes Funaria hygrometrica and Physcomitrella patens; marked by rapid radiation and sporophyte homoplasy.
Fusarium circinatum
Fusarium circinatum, with the sexual form Gibberella circinata, is a fungus causing pine pitch canker, a serious disease of pines and Douglas fir first recorded in 1945.
Gagea
Gagea (yellow stars-of-Bethlehem, goose onion) is a large, taxonomically difficult genus of bulbous Liliaceae herbs native to temperate Eurasia, North Africa, and subalpine North America, with roughly 229 to over 320 species and the former genus Lloydia now merged into it.
Gaillardia
Gaillardia (blanket flower, firewheel) is an Asteraceae genus of about 20-30 species native to North and southern South America, described in 1786, with red-and-yellow heads, the garden hybrid G. x grandiflora, and invasive G. aristata in Hungary.
Gala (apple)
Gala is a New Zealand apple cultivar from the 1930s, a Kidd's Orange Red × Golden Delicious cross by J.H. Kidd; sweet, crisp, medium-sized, and the top US apple variety at about 16% of production.
Galanthus
Galanthus, snowdrops, is a genus of about 19 bulbous Amaryllidaceae species native from Europe to western Asia, flowering in late winter; all species are CITES Appendix II listed, with large wild bulb exports of G. woronowii and G. elwesii.
Galanthus nivalis
Galanthus nivalis, the common snowdrop, is a bulbous perennial of the amaryllis family native to Europe from the Pyrenees to Ukraine, whose nodding white flowers appear in late winter and early spring.
Galeopsis
Galeopsis L. (hemp-nettle) is a genus of about 10 annual herbs in the mint family (Lamiaceae), native to temperate Eurasia, placed in tribe Galeopsideae, with frequent hybridization and traditional medicinal uses.
Galinsoga
Galinsoga (gallant soldiers) is a genus of 12 accepted annual Asteraceae herbs native to tropical and subtropical America, established by Ruiz and Pavon in 1794; its weedy species G. parviflora and G. quadriradiata are invasive worldwide and used as food and medicine.
Galinsoga parviflora
Galinsoga parviflora, gallant soldier or quickweed (guascas), an annual Asteraceae herb native to tropical America, a cosmopolitan weed of crops, distinguished from G. quadriradiata by sparse hairs and blunt pappus tips, and eaten as a cooked vegetable.
Galium
Galium (bedstraws, cleavers) is a cosmopolitan genus of about 500-670 species of Rubiaceae herbs with whorled leaves, four-angled stems, small four-merous flowers, and two-lobed fruits; type species G. aparine.
Galium aparine
Galium aparine, cleavers or catchweed bedstraw (stickywilly), is a hooked-hair annual climbing herb of Rubiaceae, a widespread temperate weed of crops and gardens with bur-like fruits, edible and folk-medicinal uses, and invasive status in Argentina.
Galium mollugo
Galium mollugo (smooth bedstraw, hedge bedstraw, false baby's breath), a perennial Rubiaceae herb native to Europe to Siberia and North Africa, invasive in North American hayfields and pastures, regulated as a Canadian Secondary Noxious weed seed.
Galium odoratum
Galium odoratum (sweet woodruff, Waldmeister), a Rubiaceae perennial of temperate Eurasia, is a shade ground cover with whorled leaves and coumarin-scented dried foliage used to flavor German May wine.
Galium verum
Galium verum (lady's bedstraw), perennial Rubiaceae herb of temperate Eurasia and NW Africa; type species of Galium, golden-yellow flowers, whorled leaves, traditional dye, milk-coagulation, and diuretic uses.
Gall
Gall: an abnormal plant growth induced by another organism, most often insects or mites via feeding or egg-laying chemicals; also bacteria, fungi, nematodes, viruses. Provides shelter and nutrition to the inducer; usually harmless to plant health.
Gall adelgid
Gall adelgids, spruce-gall-forming Adelgidae such as Adelges abietis and A. cooleyi, are 65-species aphid relatives with cyclical parthenogenesis, spruce-to-conifer host alternation, and species-specific pineapple or strawberry galls.
Gametophyte
Gametophyte: the haploid, gamete-producing multicellular generation of plants, alternating with the diploid sporophyte. Dominant in bryophytes, independent in ferns and lycophytes, reduced to a few cells in seed plants such as pollen.
Gametophyte body plans in bryophytes
In bryophytes the photosynthetic gametophyte is the dominant plant, taking one of two body plans: a flattened thallus or a cylindrical leafy shoot, as in mosses.
Gametophytes and reproduction of filmy ferns
The gametophytes of filmy ferns are persistent, branching ribbons that clone themselves through gemmae, allowing colonies to persist indefinitely in constantly wet habitats without completing a life cycle.
Ganja
Ganja: Hindi/Sanskrit term for cannabis, specifically dried female flower tops; brought to Jamaica by Indian indentured laborers in 1845, sacred to Rastafari, decriminalized there in 2015.
Garcia
Garcia (Vahl ex Rohr, 1792) is a two-species genus of Euphorbiaceae shrubs and trees native from Mexico to Brazil, including Garcia nutans (false tungoiltree), whose oil-rich seeds are used medicinally and studied as a drying oil.
Garcinia
Garcinia (Clusiaceae, Malpighiales) is a pantropical genus of latex-bearing dioecious trees and shrubs, first published by Linnaeus in 1753, with hundreds of species including the mangosteen, kokum, and gamboge-yielding plants.
Garcinia gummi-gutta
Garcinia gummi-gutta, also sold as garcinia cambogia or Malabar tamarind, is a tropical evergreen tree of the Western Ghats whose sour fruit rind flavors fish curries.