#shrub

• Abutilon megapotamicum — A species of semi-scandent or trailing shrub in the Malvaceae family, native to Brazil, Argentina, and Uruguay, remarkable for its long, flexible, arching branches. It is widely cultivated for ornamental purposes due to its unique and spectacular flowers, hanging from thin pedruncles, which feature a swollen, bright red calyx from which contrasting yellow petals and prominent purple stamens emerge, a look reminiscent of Chinese lanterns.
• Abutilon vitifolium — The synonymous scientific designation for *Corynabutilon vitifolium*, a species of large shrub or small tree in the Malvaceae family, native to the temperate rainforests of Chile. This unique plant is widely cultivated globally in botanical and landscape gardens due to its large, soft-haired, palmate-lobed leaves that resemble vine leaves, and for its spectacular, wide-open, cup-shaped flowers colored in delicate shades of pale blue, lavender, or golden-white.
• Winged wattle — A rare and deeply fascinating dwarf shrub species, endemic to the temperate regions of southwestern Western Australia, morphologically remarkable for its deep green, flattened stems transformed into broad, wing-like structures (phyllodes) that take over the function of evolutionarily reduced leaves. Popularly known as the 'winged wattle', this species is distinguished by its brilliant cream-yellow or yellowish-white globular inflorescences, displaying a unique and spectacular structural adaptation to dry summers and periodic bushfires.
• Kangaroo thorn — A thorny shrub or small tree species native to Australia, officially recognized in modern taxonomy under the accepted name 'Acacia paradoxa', but frequently referenced in historical and horticultural literature by its synonym 'Acacia armata'. The plant is distinguished by a dense canopy, angular branches covered with sharp stipular spines, and asymmetric, wavy phyllodes that give it an impenetrable appearance; for this reason, it was historically used to create defensive hedges, while also being valued for its bright yellow globular inflorescences.
• Drummond's wattle — A dwarf species of ornamental shrub, endemic to the southwestern regions of Western Australia, renowned for its outstanding structural elegance. Unlike many acacia species that develop phyllodes, Acacia drummondii retains its true leaves, featuring a fine, delicate, evergreen, bipinnate foliage of a deep green hue. The plant is distinguished during its flowering season by its atypical, cylindrical, and pendulous inflorescences (resembling catkins or tassels) of an intense canary-yellow, making it considered one of the most refined and decorative small species within the genus.
• Prickly moses — A species of small thorny shrub endemic to southwestern Western Australia, remarkable for its ecological value and delicate beauty. The plant features true, finely divided, deep green bipinnate leaves, protected by sharp stipular spines located at the stem nodes. Popularly known as the 'prickly moses', this species is famous not only for its brilliant golden-yellow globular inflorescences, but also for its unique capacity to fix nitrogen in the soil and to display a natural resistance against the destructive attacks of the dieback fungus Phytophthora cinnamomi.
• Acalypha — A large genus of herbaceous plants, shrubs, and subshrubs in the Euphorbiaceae family, comprising hundreds of species widely distributed across tropical and subtropical regions of the world. Plants within this genus are highly valued in horticulture as ornamental species due to their unique inflorescences shaped like long, pendulous, and fuzzy catkins or spikes, often intensely colored in bright red or crimson shades, as well as for their exotic, serrated, and variegated foliage.
• Acalypha hispida — A species of tropical evergreen shrub in the Acałypha genus, native to the Malay Archipelago and South Pacific islands, widely cultivated worldwide as a greenhouse or indoor ornamental plant. This spectacular plant stands out for its unique pistillate inflorescences, shaped like long, pendulous, cylindrical, and fuzzy catkins of an intense bright red color, which can reach lengths of up to 50 centimeters. Their velvety appearance is determined by the high density of long, slender styles on the female flowers, adapted for capturing pollen.
• Acalypha wilkesiana — A species of tropical evergreen shrub in the Acalypha genus, native to the South Pacific islands (Vanuatu, Fiji), remarkable for its spectacular, multicolored, and asymmetrical foliage. Its large, serrated, and often crinkled leaves exhibit complex chromatic patterns in shades of bronze, copper, red, pink, and cream. In horticulture, it is widely used for hedging in warm climates or as an accent plant in greenhouses and interiors due to its outstanding visual value.
• Acanthus montanus — A species of evergreen perennial subshrub with partially woody bases, belonging to the Acanthus genus and Acanthaceae family, native to the tropical rainforests and shaded mountainous areas of West and Central Africa. It is distinguished by its large, deeply lobed, and heavily undulated leaves, whose margins are armed with sharp, rigid spines. Its inflorescences are spectacular erect terminal spikes made of white, pale pink, or light lilac tubular flowers, valued in horticulture for its exotic and sculptural appearance.
• Wayfaring tree — A regional popular name attributed in certain zones of the country to the thorny shrub known as wayfaring tree or to other wild plant varieties with flexible branches used in traditional rural households for weaving fences or securing grapevines. In ethnobotanical studies, the term is analyzed to document the richness of local floristic vocabulary.
• Adelia — A genus of tropical plants belonging to the family Euphorbiaceae, characterized by shrubs or small trees with entire leaves and unisexual flowers structurally arranged in axillary inflorescences. The plant is predominantly distributed in the warm regions of Central and South America and is studied for its secondary phytochemical properties.
• Adenandra — A genus of perennial, shrubby plants native to the warm regions of South Africa, belonging to the Rutaceae family. These plants are structurally characterized by small, often aromatic leaves due to prominent oil glands, and decorative flowers with five petals shaded in white or pink, being cultivated internationally as ornamental plants due to their resilience in sandy soils.
• Adenandra fragrans — A species of small aromatic shrub native to the Cape region of South Africa, belonging to the Rutaceae family. The plant is structurally recognized for its small glandular leaves that emit an intense, pleasant, and balsamic fragrance when crushed, as well as for its decorative five-petaled white or pink flowers, often utilized in niche ornamental horticulture.
• Adenophora potaninii — A species of perennial herbaceous plant native to the mountainous regions of China, belonging to the Campanulaceae family. The plant is structurally recognized for its elegant inflorescences in the form of long racemes, loaded with numerous deep blue-violet bell-shaped flowers, and for its ovate or lanceolate leaves, being named in honor of the Russian explorer and naturalist Grigory Potanin and widely used in rustic landscape designs.
• Adenostoma — A genus of shrubby plants in the Rosaceae family, native to the chaparral ecoregions of California and Baja California. These plants are structurally characterized by small, linear, often resinous leaves, and dense inflorescences with white flowers, showing a remarkable adaptation to wildfires through their ability to sprout rapidly from deep roots after burning.
• Adenostoma fasciculatum — A species of xerophytic perennial shrub native to California and northern Baja California, belonging to the Rosaceae family, popularly known as chamise. This plant represents a dominant structural component of the chaparral ecosystem, characterized by small, linear, fascicled needle-like leaves adapted to extreme drought, and by woody stems rich in flammable resins that promote rapid regeneration after fires.
• Aerva — A genus of herbaceous or subshrubby plants belonging to the Amaranthaceae family, native to the tropical and subtropical regions of Africa and Asia. These species are structurally characterized by alternate leaves and dense, tomentose or woolly inflorescences, often utilized in traditional Ayurvedic medicine due to their diuretic and anti-inflammatory properties.
• Aesculus parviflora — Scientific name of the bottlebrush buckeye, a large deciduous shrub species native to the southeastern United States, structurally recognized by its wide, suckering habit and extremely long, cylindrical panicles filled with white flowers featuring long, prominent, reddish stamens. It is widely cultivated as a solitary ornamental plant in parks due to its spectacular mid-summer blooms.
• Aethionema — A genus of annual or perennial herbaceous or subshrubby plants belonging to the Brassicaceae (Cruciferae) family, primarily native to the limestone and rocky regions of the Mediterranean basin and Asia Minor. These plants are structurally characterized by often fleshy, glaucous leaves, dense racemose inflorescences made of small decorative pink, purple, or white flowers, and uniquely flattened silicles, being frequently cultivated in alpine rock gardens across temperate zones.