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Iris xiphium, commonly known as the Spanish iris, is an iris native to Spain and Portugal. It has also been found in Corsica , South West France , southern Italy , Algeria and Tunisia . [ 2 ] This species is also known as the small bulbous-rooted iris or xiphium iris .
It is distinguished from the common bluebell by its paler and larger blue flowers, which are less pendulous and not all drooping to one side like the common bluebell; plus a more erect flower stem (), broader leaves, blue anthers (where the common bluebell has creamy-white ones) and little or no scent compared to the strong fragrant scent of the northern species.
The most common flower colours are purple, blue-white, and violet. Some species have yellow markings on the lower petal to act as a guide to pollinating insects. Alternative names, mainly in herbalism , are Augentrostkraut, Euphrasiae herba, Herba Euphrasiae and Herbe d'Euphraise .
If treated as annuals they give a fine late summer and autumn display. Maltese stocks (Matthiola incana ssp. melitensis), known in Maltese as "ġiżi ta' Malta", is treated as a perennial and has fleshier and fuzzy leaves with flowers in a light violet colour, while an even rarer variety of it exhibits white flowers. [7] '
Ipomoea indica flowers change from bright blue to a faded purple by the end of the day. [2] Hibiscus mutabilis flowers changing colors during a day. Floral color change occurs in flowers in a wide range of angiosperm taxa that undergo a color change associated with their age, or after successful pollination. [3] [4]
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The plant is also known as dyers' bugloss, orchanet, Spanish bugloss, or Languedoc bugloss. It is native to the Mediterranean region. A. tinctoria has 30 chromosomes and is regarded as a dysploid at the tetraploid level (4x + 2). [2] A. tinctoria has a bright blue flower. The plant has a root of blackish appearance externally, but blue-red ...