#yellow flowers
- Aechmea nudicaulis — A robust perennial species in the genus Aechmea, widely distributed from Mexico to Brazil, characterized by a tight tubular rosette of rigid leaves with heavily spined margins, often marked by a distinct circular constriction near the base. Its name derives from the erect floral scape which is bare of large leaves for a considerable length, terminating in a dense inflorescence covered by bright red bracts and yellow or greenish flowers.
- 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.
- 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.
- Allium moly — The scientific name of an ornamental onion species in the family Amaryllidaceae, native to southern Europe (Spain, France, Italy), commonly known as 'golden garlic' or 'lily leek'. The plant develops rapidly into dense tufts and produces loose umbel inflorescences composed of large, bright golden-yellow star-shaped flowers, heavily used for naturalizing in partially shaded zones and cottage gardens.
- Aquilegia chrysantha — A species of herbaceous perennial plants in the genus Aquilegia, native to the southwestern United States and northern Mexico; this structural plant stands out for its large, intense golden-yellow flowers, equipped with exceptionally long and slender nectar spurs, being highly heat-tolerant compared to other alpine species.
- Arnebia echioides — The scientific name of a perennial herbaceous plant species in the Boraginaceae family, native to the Caucasus and mountainous regions of Iran, popularly known as the 'prophet flower'. It is remarkable for its golden-yellow flowers that initially feature five distinct large, black-purple spots that fade completely as the flower ages.