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|}} ''Iris giganticaerulea'' (or 'Giant blue iris') is a species of iris, it is also in the subgenus of ''Limniris'' and in the ''Series Hexagonae''. It is a rhizomatous perennial, from northern America. It has long bright green leaves, very tall stems, 1-2 musky fragrant flowers, in a range of blue shades, from pale blue, to lavender blue, to bright blue, to dark blue, and to violet blue. Rarely, there is a white form. ==Description== ''Iris giganticaerulea'' (like its common name the 'Giant blue iris') is the largest species of the Louisiana Irises.〔〔 It has very large green rhizomes, which are between 5 to 12 inches (13 – 30 cm) long and 0.75 to 1.5 inches (2–4 cm) thick.〔〔 They are shallow rooted, marked with the scars (of the previous seasons) leaves, with many branches, which can form a large clump/colony growing up to 6 x 3 feet (182 x 91 cm).〔〔〔 It has rising from the base of the plant, 4-6 bright green leaves, ensiform (sword-shaped) and measuring between 20 - 30 inches (50–76 cm) long and 1 1/2 inches (4 cm) wide.〔〔〔〔〔 It has very tall stems, that can grow between to between 28 – 71 inches (70–180 cm) tall.〔〔〔 They can have 2-3 branches,〔 with 1-2 terminal flowers, arising above the leaves.〔〔 There can be up to 12 flowers on the plant.〔 It blooms between during early to mid summer, generally between March and April (both in the UK and America),〔〔 with fragrant flowers which have a musky scent.〔〔 It comes in a range of blue shades,〔 from pale blue,〔〔〔 to lavender blue,〔〔〔 to bright blue,〔〔〔 to dark blue,〔〔〔 and to violet blue.〔〔〔 Occasionally there is a white form,〔〔〔〔〔 or yellowish white.〔 The flowers are generally 5 to 6 inches (13 to 15 cm) across.〔〔〔 It has 6 petals, 3 outer sepals (called the falls), which are flaring (1.75 inch or 4 cm wide), arch downwards and have a white or yellow or faint orange signal patch or ridge.〔〔〔〔〔〔 It also has 3 inner sepals (called the standards), which are slightly erect or upright and narrower than the falls.〔〔〔 It has a 4–5 cm long perianth tube, blue-violet style 1.3-1.5 inch (3.5–4 cm long) and 2 lobed stigmas.〔 After flowering, it has bright green ellipsoid capsules 3-4 inches (7–10 cm) long by 1 inch (3 cm) wide, which are hexagonal in cross section and shaped like a D.〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Iris giganticaerulea」の詳細全文を読む スポンサード リンク
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