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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.
Iris is a flowering plant genus of 310 accepted species [1] with showy flowers.As well as being the scientific name, iris is also widely used as a common name for all Iris species, as well as some belonging to other closely related genera.
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".
The flowers are bright yellow, 7–10 cm (2.8–3.9 in) across, with the typical iris form. The fruit is a dry capsule 4–7 cm (1.6–2.8 in) long, containing numerous pale brown seeds. I. pseudacorus grows best in very wet conditions, and is common in wetlands, where it tolerates submersion, low pH , and anoxic soils.
The 3-locular seed capsule contains the seeds which are often circular, flat in some cases drop-like grains coloured black or sometimes orange (Iris pseudacorus). The species in the subfamily are often used as ornamental plants such as Iris and Tigridia .
Iris florentina flower in late April. Iris florentina has a thick or stout rhizome, which is short, fleshy, horizontal, and has a strong violet scent. [2] [3] [4] The rhizomes spread across the surface of the soil, [1] [5] [6] to form clumps of plants. [6] [7] This habit can often create a dense network of fibrous roots that can crowd out other ...
The iris is also the host plant of Mononychus punctumalbum (Herbst, 1784, iris seed weevil – a weevil that feeds on the seeds of the iris). The weevil lays its eggs within seed capsule of the iris, later the larva feeds on the seed and up to 2 other seeds, and then it pupates.
The iris seed is not hard to raise but a very slow process. [33] It can take many months to germinate (between 3–12 months) with a 50% germination average. [14] They then can take 3–5 years before reaching flowering stage. [33] Seeds should be harvested from the plant after flowering but they must be from mature seed pods.
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