3,306 articles
Acacia dealbata
Acacia dealbata, silver wattle or mimosa, a fast-growing nitrogen-fixing Australian legume tree to 30 m with silvery bipinnate leaves and yellow spring flowers; invasive in western Iberia, South Africa and New Zealand, listed by EPPO, used for pulp, perfume and ornament.
Acacia harpophylla
Acacia harpophylla (brigalow) is a nitrogen-fixing Australian acacia tree of Queensland and New South Wales clay soils, reproducing mainly by root suckers. Its dominant ecological community is EPBC-listed endangered after declining to about 10% of former extent, though the species itself is IUCN Least Concern.
Acacia mangium
Acacia mangium (brown salwood, hickory wattle) is a fast-growing Fabaceae tree native to Maluku, New Guinea, and north Queensland, widely planted in tropical Asia for pulpwood, with about 450,000 hectares in the Asia-Pacific and known invasive behavior in some introduced ranges.
Acacia mearnsii
Acacia mearnsii (black wattle), Fabaceae tree native to southeastern Australia, grown worldwide for bark tannin (30-40% dry weight), pulp, and fuelwood; introduced to over 150 countries and listed among the world's 100 worst invasive alien species, notably invasive in South Africa.
Acacia sensu lato
Acacia sensu lato is the traditional broad genus of thorny acacia trees and shrubs, later split into seven separate genera after molecular studies showed it was polyphyletic.
Acaena
Acaena is a genus of about 56 species of perennial herbs and dwarf shrubs in the rose family, known for burr-like fruits that attach to animals and clothing.
Açaí palm
Açaí palm (Euterpe oleracea), also açaí-do-pará or assai palm, is a clumping Amazon floodplain palm grown for its purple drupe pulp, a Brazilian staple food and global superfruit; Pará produces about 90% of Brazil's roughly 2 million tonnes per year.
Acalypha
Acalypha (copperleaf) is a pantropical genus of about 432 accepted species in Euphorbiaceae, described by Linnaeus in 1753, with 8-stamen male flowers, fringed styles, and medicinal and ornamental species such as A. hispida.
Acalypha indica
Acalypha indica L. (Indian acalypha, Indian copperleaf, kuppa meni) is an annual Euphorbiaceae herb native from Eritrea to South Africa and Arabia to tropical Asia, a medicinal weed whose ingestion can cause hemolysis and methemoglobinemia.
Acampe rigida
Acampe rigida, known in Chinese as duō huā cuì lán or the banana orchid, is a large epiphytic orchid native to southern and eastern Asia.
Acanthaceae
Acanthaceae, the acanthus family (Lamiales), is a pantropical family of over 4,000 species in about 191 genera, defined by opposite cystolith-bearing leaves and explosively dehiscent capsules with retinacula, classified into four subfamilies including Acanthoideae.
Acanthus
Acanthus (bear's breeches) is a genus of about 25–30 Acanthaceae herbs and shrubs from southern Europe to N. Australia and Africa, used in traditional medicine and as the Corinthian capital's leaf motif.
Acer campestre
Acer campestre, field maple or hedge maple, is a small deciduous Sapindaceae tree native from Europe to Iran and N. Algeria, common in hedges and woodland edges, drought- and salt-tolerant, with three accepted subspecies.
Acer negundo
Acer negundo, boxelder or ashleaf maple (Manitoba maple), the only compound-leaved maple, a fast-growing dioecious North American riparian tree reaching 21 m, valued for Great Plains shelterbelts and invasive in European riparian forests.
Acer pensylvanicum
Acer pensylvanicum, striped maple or moosewood, is a small shade-tolerant understory tree of eastern North American forests with white vertical stripes on green bark, dioecious sex expression, heavy wildlife browse value, and IUCN Least Concern status.
Acer platanoides
Acer platanoides, Norway maple, is a large Sapindaceae tree native from Europe to Central Asia, planted as a street tree since 1756 in North America, where it is now a regulated invasive species.
Acer pseudoplatanus
Acer pseudoplatanus, sycamore maple (sycamore in Britain), a large deciduous Sapindaceae tree native to Europe and W Caucasus, naturalised and invasive in Norway, threatened by sooty bark disease under warming climates.
Acer rubrum
Acer rubrum, red maple, a widespread eastern North American maple tree with red spring flowers and fall foliage; hexaploid-octoploid, hybridizes with silver maple as Acer × freemanii, widely planted in cultivars.
Acer saccharinum
Acer saccharinum, silver maple (soft maple, river maple), a fast-growing deciduous tree native from southeastern Canada to the central and eastern United States, with silvery leaf undersides, the largest samaras of native maples, and the Freeman maple hybrid with red maple.
Acer saccharum
Acer saccharum, sugar maple (hard maple, rock maple), a large deciduous hardwood of eastern North America; primary source of maple syrup with sap of about twice the sugar content of other maples, and a valuable timber species.
Achillea millefolium
Achillea millefolium, common yarrow, is a perennial Asteraceae herb native to Greenland and temperate Eurasia, naturalized in North America with both native and introduced varieties, used medicinally and ornamentally.
Achyranthes
Achyranthes (chaff flower, niuxi 牛膝) is a pantropical Amaranthaceae genus of about 33 species with spiny, deflexed fruiting spikes; A. bidentata and A. aspera are widely used medicinal herbs rich in saponins and polysaccharides.
Achyranthes aspera
Achyranthes aspera (devil's horsewhip, apamarga, 土牛膝), Amaranthaceae, a pantropical amaranth weed with clinging spiny fruits, widely used in traditional medicine, studied for anti-inflammatory, anti-fertility and cardiovascular effects.
Acianthera
Acianthera is a genus of roughly 300 accepted neotropical orchid species in the Pleurothallidinae, restored to generic rank in 2001, ranging from Mexico to Argentina, and richest in Brazil.
Acmella
Acmella (Rich. ex Pers., 1807) is an Asteraceae genus of about 30–36 herb species in the tropics and subtropics, separated from Spilanthes by Jansen; its best-known species, A. oleracea, is the toothache plant containing spilanthol.
Acmella oleracea
Acmella oleracea (jambu, toothache plant, electric daisy; basionym Spilanthes oleracea) is an Asteraceae cultigen from southeastern Brazil whose pungent N-alkylamide spilanthol underpins culinary, medicinal, cosmetic, and insecticidal uses.
Aconitum
Aconitum (monkshood, wolfsbane, aconite), Ranunculaceae genus of 345 accepted species native to the temperate Northern Hemisphere; roots contain toxic diterpenoid alkaloids such as aconitine used medicinally after processing.
Aconitum napellus
Aconitum napellus (monkshood, wolfsbane) is a toxic Ranunculaceae perennial native to western and central Europe, containing aconitine and other diterpenoid alkaloids that cause potentially lethal cardiotoxicity and neurotoxicity.
Acorn
Acorn: the nut fruit of oaks (Quercus), one seed in a cupule; white oaks ripen in one year, red oaks in two; tannin-rich but leachable, ~4,994 kcal/kg, staple food and wildlife mast.
Acorus
Acorus (菖蒲属, Chang Pu, sweetflag) is the sole genus of Acoraceae and order Acorales, aromatic wetland monocot herbs with five accepted species including A. calamus; once placed in Araceae, used in traditional medicine and wetland water treatment.