Ash, White — Fraxinus americana (White Ash or American Ash) is a species of Fraxinus native to eastern North America found in mesophytic hardwood forests from Nova Scotia west to Minnesota, south to northern Florida, and southwest to eastern Texas. It is a large deciduous tree growing to 20–30 m tall, exceptionally to 50 m, with a trunk 0.5–1.8 m …

Arum — Arum is a genus of about 25 species of flowering plants in the family Araceae, native to Europe, northern Africa, and western Asia, with the highest species diversity in the Mediterranean region. They are rhizomatous, herbaceous perennial plants growing to 20-60 cm tall, with saggitate (arrowhead-shaped) leaves 10-55 cm long. The flowers are produced in a spadix, surrounded …

Artichoke — The Globe Artichoke (Cynara scolymus) is a perennial thistle originating in southern Europe around the Mediterranean. It grows to 1.5-2 m tall, with arching, deeply lobed, silvery glaucous-green leaves 50–80 cm long. The flowers develop in a large head from an edible bud about 8–15 cm diameter with numerous triangular scales; the individual florets are purple. The edible …

Arbutus — Arbutus is a genus of at least 14 species of flowering plants in the family Ericaceae, native to warm temperate regions of the Mediterranean, western Europe, and North America. North American members of the genus are called Madrones, from the Spanish name madroño. The European species are called Strawberry Trees from the superficial resemblance of the fruit to …

Arborvitae — Thuja is a genus of coniferous trees in the Cupressaceae (cypress family). There are five species in the genus, two native to North America and three native to eastern Asia. They are commonly known as arborvitae (from Latin for tree of life) or thujas; several species are widely known as cedar but because they are not true cedars …

Apricot — The Apricot is a species of Prunus, classified with the plum in the subgenus Prunus. The native range is somewhat uncertain due to its extensive prehistoric cultivation, but most likely in northern and western China and Central Asia, possibly also Korea and Japan. It is a small tree 8–12 m tall, with a trunk up to 40 cm diameter …

Apple — The apple is the pomaceous fruit of the apple tree, species Malus domestica in the rose family Rosaceae. It is one of the most widely cultivated tree fruits. The tree is small and deciduous, reaching 5–12 m tall, with a broad, often densely twiggy crown. The leaves are alternately arranged simple ovals 5–12 cm long and 3–6 cm …

Aphelandra — Aphelandra is a genus of about 170 species of flowering plants in the family Acanthaceae, native to tropical regions of the Americas. They are evergreen shrubs growing to 1-2 m tall, with opposite, simple leaves 5-30 cm long, often with white veins. The flowers are produced in dense spikes, with brightly coloured bracts. Several species are grown as …

Anise — Anise or Aniseed, less commonly anís (stressed on the second syllable) (Pimpinella anisum), is a flowering plant in the family Apiaceae, native to the eastern Mediterranean region and southwest Asia. It is a herbaceous annual plant growing to 1m tall. The leaves at the base of the plant are simple, 2-5 cm long and shallowly lobed, while leaves …

Anemone — Anemone is a genus of about 120 species of flowering plants in the buttercup family Ranunculaceae in the north and south temperate zones. They are closely related to Pasque flower (Pulsatilla) and Hepatica (Hepatica); some botanists include both of these genera within Anemone. The plants are perennial herbs with an underground rootstock, and radical, more or less deeply …