#inflorescence

• 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.
• Acanthus arboreus — A species of erect shrub or small tree in the Acanthus genus, native to the tropical regions of East and Northeast Africa (such as Ethiopia, Sudan, Kenya, and Uganda). Unlike the predominantly herbaceous species of this genus, this taxon develops vigorous woody stems that can reach heights of 4 to 6 meters. It is characterized by large, deeply lobed, and heavily spiny leaves, and spectacular dense terminal flower spikes with large, bright pink or purple flowers protected by serrated green bracts.
• Acropetal — Developing, moving, evolving, or propagating from the base toward the apex (ascendingly), in the direction of the upper extremity of an organ or structural organism. In botany, the term describes an inflorescence with acropetal succession (where the oldest flowers are located at the base and the youngest ones or buds gradually open toward the apex) or the transport of sap and regulatory substances through plant vascular tissues.
• Aechmea — A genus of perennial herbaceous plants in the family Bromeliaceae, native to tropical America, characterized by leaves arranged in a dense, funnel-shaped rosette that collects water and by spectacular inflorescences protected by rigid, brightly colored bracts. Many species are epiphytic in the wild and are widely cultivated as ornamental houseplants due to their indoor resilience.
• Aechmea paniculata — An exotic species of perennial herbaceous plant in the genus Aechmea, native to the densely forested rainforests of South America, remarkable for its complex, heavily branched paniculate inflorescence. Its foliar rosette, composed of rigid leaves with serrated margins, forms a deep central reservoir destined for storing rainwater and absorbing dissolved nutrients through specialized cellular scales.
• Ageratum corymbosum — A species of perennial herbaceous plant in the genus Ageratum, native to Mexico and the southern United States, characterized by corymbose inflorescences made of small, deep-blue or violet flowers. It is occasionally used in horticulture for its ability to attract pollinators and its superior resistance in arid climates compared to annual species.
• Alloplectus capitatus — The scientific name of a representative species in the genus Alloplectus, an exotic perennial plant in the family Gesneriaceae, native to the mountainous regions of Colombia, Venezuela, and Peru. The species is characterized by erect stems, large, velvety dark green leaves covered in fine hairs, and produces compact, capitate (head-like) inflorescences consisting of yellow tubular flowers surrounded by large, persistent, deep maroon-red bracts.
• Amorphophallus titanum — The scientific name of a gigantic species of herbaceous plant in the Araceae family, endemic to the rainforests of Sumatra (Indonesia) and popularly known as the corpse flower or titan arum. It produces the largest unbranched inflorescence in the plant kingdom, consisting of a massive spadix that can exceed three meters in height and a ruffled purple spathe, emitting an unbearable smell of rotting meat during its brief bloom to attract carrion beetles.
• Amphiblemma cymosum — The scientific name of an ornamental tropical herbaceous plant species in the genus Amphiblemma, Melastomataceae family, native to the damp tropical rainforests of West Africa (such as Sierra Leone). It is distinguished by its large, velvety, cordate deep green leaves with conspicuous reddish veins, and by its branched terminal inflorescences (cymes) consisting of bright pink or purple flowers.
• Anota densiflora — A synonymous scientific name for an epiphytic orchid species (currently taxonomically grouped under the genus Rhynchostylis, such as Rhynchostylis gigantea or related species), native to the tropical regions of Southeast Asia. The plant is characterized by robust stems, fleshy leaves, and a dense, pendulous inflorescence composed of numerous fragrant flowers, heavily studied in botany for its morphological adaptations to humid forest environments.
• Anthela — A special type of compound cymose inflorescence, specific to certain monocotyledonous plants of the Juncaceae or Cyperaceae families (such as the genus Juncus). Its structure is characterized by the fact that the lateral secondary axes (lower branches) are longer than the main central axis, overtopping it and giving the inflorescence a spread umbel-like or paniculate appearance.
• The anthelae — The dative-genitive singular form or the articulated plural form for the technical noun antelă, describing a type of compound inflorescence where the secondary axes overtop the main axis. The term is used within plant taxonomy papers to analyze the structural setup of specific juncaceous inflorescences.
• Antennaria — A genus of herbaceous perennial plants in the family Asteraceae (composites), primarily distributed throughout temperate and arctic regions of the Northern Hemisphere, commonly known as 'pussytoes'. These plants are characterized by leaves covered with dense, woolly hairs and small, globose, fluffy flower heads that visually resemble insect antennae or feline paw pads.
• Anthericum ramosum — The scientific name for branched lily-asphodel, a perennial herbaceous plant in the family Asparagaceae. It is distinguished by its highly branched, paniculate flower stalk and star-shaped white flowers that are slightly smaller than those of Anthericum liliago.
• Anthodium — A type of pseudanthium inflorescence, characteristic of plants in the Asteraceae (Compositae) family, consisting of a widened, flat, convex, or concave common receptacle on which numerous small flowers are sessile, tightly grouped and surrounded at the base by an involucre of green bracts. This biological structure simulates the appearance of a single large flower to efficiently attract pollinators.
• Axiliflorous — Bearing flowers arranged within the leaf axils, meaning at the armpit of the petiole at its insertion point on the stem. This morphological trait describes plants whose inflorescences are not terminal but grow delicately along the main axis, optimizing structural exposure to pollinators and protecting floral buds from harsh weather.