#North America

• Amero — A hypothetical name proposed for a single structural currency of the North American Union, theoretically designed to replace the US dollar, Canadian dollar, and Mexican peso within an extended process of macroeconomic integration. The concept is frequently used in niche geopolitical analyses and comparative financial theories regarding the future of transatlantic markets.
• Carolina anemone — A species of perennial herbaceous plant in the family Ranunculaceae, native to the central and southeastern regions of the United States. This prairie plant grows on dry, sandy, or calcareous soils, featuring a tuberous rhizome from which delicate stems emerge, each bearing a single solitary flower with numerous petaloid sepals that range from white and pink to light violet, blooming in early spring.
• Antennaria parvifolia — A species of perennial herbaceous plant in the Asteraceae family, native to the mountainous and arid regions of North America, commonly known as 'small-leaf pussytoes'. This stoloniferous plant is adapted to drought and poor soils, forming low, dense vegetative mats characterized by small, spatulate basal leaves covered with a dense woolly tomentum, and whitish or pinkish flower heads.
• Appalachians — A massive and ancient mountain range located in eastern North America, extending from the Canadian province of Newfoundland and Labrador to the state of Alabama in the southern United States. This structural mountain system is characterized by rolling terrain, parallel forested ridges, and rich coal resources, being famous for its forest biodiversity and the long, famous Appalachian Trail.
• Aquilegia caerulea — A species of herbaceous perennial plants in the genus Aquilegia, native to the Rocky Mountains of North America; this structural plant features large, spectacular, typically bicolor flowers (with white petals and blue sepals), being declared the official state flower of Colorado and frequently used as an ecological symbol and luxury decorative plant.
• Aquilegia skinneri — A species of herbaceous perennial plants in the genus Aquilegia, native to the mountainous zones and humid canyons of northwestern Mexico (Sierra Madre Occidental); this structural plant is famous for its spectacular tricolor flowers, featuring greenish-yellow sepals, yellow inner petals, and exceptionally long, bright orange-red nectar spurs.
• Aralia spinosa — The scientific binomial name for Hercules' club or devil's walking stick, a large deciduous shrub or small tree in the Araliaceae family, native to the eastern United States. It is recognized in botany by stems and branches armed with very sharp prickles, exceptionally large bipinnate compound leaves (among the largest in North American flora), and massive terminal paniculate inflorescences of white flowers followed by dark purple berries favored by wildlife.
• Arctostaphylos — A genus of higher plants in the Ericaceae family, comprising approximately 60 species of evergreen, low-growing or trailing shrubs, predominantly distributed in the mountainous and coastal regions of western North America. The main structural characteristic of these plants is their smooth, glossy, deep reddish-brown bark, leathery leaves, and globose fruits resembling small red or brown berries, commonly known as manzanitas or bearberries.
• Arnica lanceolata — The scientific name of an herbaceous plant species in the Asteraceae family, commonly known as lanceleaf arnica. It is native to mountainous, moist regions of western and northeastern North America, recognized by its elongated, lance-shaped leaves, finely toothed margins, and glandular stems supporting bright yellow flower heads.
• Arundinaria — A genus of perennial plants in the Poaceae family, Bambusoideae subfamily, comprising bamboo species native primarily to the temperate regions of North America. These plants are characterized by running or leptomorph rhizomes, woody culms that often branch at the nodes, and complex inflorescences. It represents the only bamboo genus native to the North American continent, holding major ecological importance in forming canebrake habitats.
• Pawpaw — The scientific name of the pawpaw (also known as the North American banana), a species of small deciduous tree or shrub in the Annonaceae family, native to eastern North America. This structurally unique plant produces the largest edible fruit native to the North American continent, featuring a custard-like texture and a complex flavor reminiscent of an exotic blend of banana, mango, and pineapple.