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Iris giganticaerulea, the giant blue iris, is a species of iris, in the subgenus Limniris, in the series Hexagonae.It is a rhizomatous perennial, from northern America.It has long bright green leaves, very tall stems and one or two musky fragrant flowers in a range of blue shades (pale, bright, dark, lavender and violet) or rarely white.
Its flowers are usually of a dull, leaden-blue colour, or dull buff-yellow tinged with blue. The petals have delicate veining. It blooms between June and July, but the flowers only last a day or so. [3] The green seed capsules, which remain attached to the plant throughout the winter, are 5–8 cm (2–3 in) long; and the seeds are scarlet.
The English names walking iris, apostle's iris and apostle plant have been used for many species, regardless of the generic placement (e.g. for Trimezia gracilis, syn. Neomarica gracilis). New plantlets form at the end of the flower spikes; after flowering, the spikes fall over and a new plant grows, so the plant "walks".
Iris virginica is a perennial plant that grows up to 0.6–0.9 m (2–3 ft) tall. The plant's sword-shaped basal leaves are erect or sometimes arching and measure up to 91 cm (3 ft) long and 2.5 cm (1 in) across at the base.
Iris confusa is similar in form to Iris japonica and Iris wattii. Iris confusa is larger than Iris japonica in all parts, [3] with more attractive foliage. [4] Compared to Iris wattii, it is smaller and has smaller flowers. [5] [6] I. confusa has stout, creeping rhizomes. [7] [8] They are short and bamboo-like. [9] [10] It also has short ...
Iris brevicaulis is the smallest in all the Hexagonae series of Louisiana irises. [3] Its leaves and stalks are much shorter than the other species. [4] It is similar in form to Iris virginica, [5] The flowers are normally never seen above the foliage, [6] [4] [7] due to the short zig-zagging flower stems and occasionally, due to the habit of the stems to lie along the floor, [8] or it is ...
Iris foetidissima L. – Stinking Iris, Gladwin Iris, Stinking Gladwin, Gladdon, Roast-beef Plant; Series Hexagonae (known as the Louisiana irises) Iris brevicaulis Raf. – Zigzag Iris; Iris fulva Ker-Gawl. – Copper Iris; Iris giganticaerulea – Giant Blue Iris, Giant Blue Flag; Iris hexagona Walt. – Dixie Iris; Iris nelsonii Randolph ...
It contains the best-known genus - Iris. The members of this subfamily are widely distributed worldwide. They grow in all continents except Antarctica. Iris milesii. They produce typical sword-shaped leaves and have mainly corms or rhizomes. There are some exceptions which have bulbs. These are two subgenera of Iris - Xiphium and Hermodactyloides.