#blue flowers
- Ajuga genevensis — A species of perennial herbaceous flowering plant in the mint family Lamiaceae, commonly known as Geneva bugle, blue bugleweed, or standing bugle. It features erect, hairy stems, coarsely toothed leaves, and dense spikes of vibrant blue to violet flowers; unlike Ajuga reptans, it does not produce creeping stolons, growing natively in dry meadows, forest edges, and scrublands.
- Ajuga reptans — A species of perennial herbaceous flowering plant in the mint family Lamiaceae, commonly known as creeping bugle, carpet bugle, or bugleweed. It is famous for its long, creeping above-ground stolons that allow it to spread rapidly, creating dense vegetative carpets, and for its deep blue labiate flowers arranged in erect spikes; it is widely utilized in horticulture as an effective ground cover and valued in traditional herbal medicine for its astringent and wound-healing properties.
- Aquilegia alpina — A species of perennial plants in the genus Aquilegia, native to the alpine meadows and rocky areas of the Alps; this structural plant is recognized by its large, intense-blue or violet flowers, being protected in spontaneous flora and highly appreciated as an ornamental plant in alpine gardens due to its resistance to low temperatures.
- Aristea corymbosa — Scientific name for a rare and robust shrubby species of perennial plants in the Iridaceae family, native to the mountainous regions of South Africa. This plant is particularly spectacular due to its woody stems, fan-shaped leaves, and dense corymb-like inflorescences that produce intense blue flowers, being cultivated worldwide as a collectible ornamental plant.