#botanical nomenclature

• Aeonium domesticum — A scientific name often used for a popular horticultural hybrid (correctly known as Aichryson x domesticum), belonging to the same Crassulaceae family, characterized by small rosettes of velvety, slightly hairy leaves and thin, highly branched stems. It is an extremely widespread houseplant, valued for its adaptability to indoor conditions and its star-shaped yellow flowers.
• Agathosma imbricata — A specific shrub species within the genus Agathosma, characterized by small, rigid leaves arranged very densely along the stems and partially overlapping one another like roof tiles (imbricate arrangement). This compact foliar structure significantly reduces water loss through transpiration, allowing the plant to survive in exposed rocky habitats within the South African fynbos ecosystem.
• Aleppicum — A specific epithet used in binary Latin nomenclature in biology and medicine to designate plant species, organisms, or dermatological conditions that originate from the Aleppo region or were historically identified there. It appears structurally in phytonyms or in old medical terminology referring to parasites and cutaneous lesions endemic to the Near East.
• Allamanda neriifolia — The scientific name of a tropical plant species in the family Apocynaceae, partially synonymous with Allamanda schottii, popularly known as the 'bush allamanda' or 'dwarf golden trumpet'. Unlike other climbing vines of the same genus, it grows as a compact, well-branched shrub, featuring elongated leaves similar to those of the oleander (Nerium oleander) and bright yellow funnel-shaped flowers, followed by spiny and highly decorative fruit capsules.
• Ambrosiifolia — A specific epithet used in binary botanical nomenclature to describe a plant species whose leaves exhibit a shape, segmentation, or texture similar to those of plants in the genus Ambrosia. The term originates from the combination of the genus name 'Ambrosia' with the Latin noun 'folium' (leaf), structurally assigned to various species to highlight their foliar morphological characteristics.
• Ambrosioides — A specific epithet used in plant taxonomy to designate a species that strongly resembles the appearance, inflorescence shape, or scent of plants in the genus Ambrosia. The term combines the root 'Ambrosia' with the Greek suffix '-oides' (resembling, having the form of), serving as a frequent visual or olfactory indicator in scientific species identification (e.g., Dysphania ambrosioides, commonly known as epazote).
• Anacampseros — A genus of small, perennial succulent plants native to the arid regions of Southern Africa, belonging to the family Anacampserotaceae. These structural plants are characterized by fleshy leaves, often covered with silky hairs or membranous stipules that protect them from the scorching sun, and are cultivated by collectors for their unique ornamental appearance and delicate diurnal flowers.
• Anacampseros arachnoides — A species of small perennial succulent plant endemic to the Cape Provinces of South Africa, belonging to the family Anacampserotaceae. The plant forms compact rosettes of fleshy, ovate, dark-green or purplish leaves, remarkable for the presence of long, tangled white hairs growing from the leaf axils, resembling a spider's web, which structurally function to trap nightly dew and shade the epidermis.
• Anacampseros filamentosa — A species of small perennial succulent plant native to the arid regions of South Africa, belonging to the family Anacampserotaceae. It grows in the form of compact dwarf tufts, featuring fleshy, ovate or nearly spherical leaves covered by a dense layer of long, white hair-like filaments, which structurally function to shade the epidermis and reduce water loss through evaporation.
• Anacampseros rufescens — A popular species of perennial succulent plant native to South Africa, belonging to the family Anacampserotaceae. It forms dense rosettes of fleshy, lanceolate leaves, whose green epidermis takes on spectacular shades of red, purple, or bronze when the plant is exposed to intense sunlight; it features fine, long hairs in the axillary areas.
• Anacampseros telephiastrum — The type species of small perennial succulent plant native to the arid mountainous provinces of South Africa, belonging to the family Anacampserotaceae. It forms compact, low-growing rosettes of very fleshy, obovate or lanceolate leaves of a grayish-green or purplish color, remarkable for the fine hairs and white filaments in the axillary areas and large, intense pink flowers that open only in the bright midday light.
• Anacampto- — A combining form or neologistic prefixoid borrowed from ancient Greek (anakamptein), used in international scientific terminology to express the idea of bending back, reflection, curving, reflecting, or turning back. It is a structural root that forms the basis of many taxonomic designations (such as the orchid genus Anacamptis) or medical terms describing anatomical movements and secondary reflections.
• Cashew tree — A medium tropical tree (Anacardium occidentale) native to South America (Brazil), but widely cultivated in India and Africa, famous for its accessory fruit from which the edible and oleaginous seeds popularly known as cashews are extracted. As an adjective, it describes an element, a leaf, a plant, or an organic substance belonging to the Anacardiaceae botanical family.
• Anacardiaceous plant — A dicotyledonous shrubby or arborescent plant, predominantly exotic or tropical, belonging to the cashew family (Anacardiaceae); in the plural, it designates this extensive botanical family of high economic and dietary importance, which includes famous species such as the cashew tree, mango, pistachio, and smoke tree. These plants are structurally characterized by the presence of secretory ducts containing resins, milky saps, or often irritating oily substances.
• Cashew tree — A medium tropical tree belonging to the cashew family, widely cultivated for its fruits; the alternative or synonymous botanical designation for the cashew tree (Anacardium occidentale). This structural shrub produces a fleshy accessory fruit on top of which the cashew seed or nut develops, which is appreciated globally in the food industry.
• Anacharis — A historical genus or scientific synonymous designation for Elodea, a group of perennial, submerged aquatic plants native to North America but widely naturalized worldwide; it is popularly known as waterweed. Due to its accelerated structural growth rate and high oxygenation capacity, it is frequently cultivated in aquariums, although in the natural environment it can become an aggressive invasive weed.
• Genus Anaphalis — A genus of perennial herbaceous plants in the family Asteraceae, subfamily Asteroideae, primarily native to the mountainous and temperate regions of Asia, with a few species distributed in North America. Popularly known as 'pearly everlastings', these plants are characterized by leaves covered with grayish-white silky or woolly hairs and compact inflorescences made of globular capitula with dry, membranous, and persistent involucral bracts, often white, which retain their shape and color long after drying.
• Birthwort — A common name used to designate any plant belonging to the genus Aristolochia, characterized by erect or climbing stems and flowers with a simple perianth shaped like a funnel or a bent pipe. Historically, these plants were used as empirical remedies in gynecology to facilitate childbirth (hence its etymology), but their modern use is strictly banned due to deadly risks of nephrotoxicity.