Slender blue flag | |
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Scientific classification
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Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Iridaceae |
Genus: | Iris |
Subgenus: | Iris subg. Limniris |
Section: | Iris sect. Limniris |
Series: | Iris ser. Prismaticae |
Species: | I. prismatica
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Binomial name | |
Iris prismatica Pursh
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Synonyms [1] | |
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Iris prismatica, the slender blue flag or cubeseed iris, [2] is a plant species native to parts of the southern and eastern United States from Maine south to Alabama, as well as to the Canadian provinces of Ontario and Nova Scotia. [3] [4] [5]
Iris prismatica is a perennial herb spreading by means of rhizomes that are close to the surface of the soil. Flowering stalks can reach a height of 80 cm. Leaves are long and narrow, up to 60 cm long but rarely more than 5 mm across. It has 2–3 blooms in May. [2] Flowers are pale blue to blue-violet. [6] [7] [8] [9] [10] It tends to grow in swampy, [2] wet conditions, [3] and within the United States, it is currently state listed as 'threatened' in Maine, New Hampshire, New York, and Tennessee, and state listed as 'endangered' in Maryland and Pennsylvania. [11] It is cold hardy to USDA Zone 3. [2]
Slender blue flag | |
---|---|
| |
Scientific classification
![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Iridaceae |
Genus: | Iris |
Subgenus: | Iris subg. Limniris |
Section: | Iris sect. Limniris |
Series: | Iris ser. Prismaticae |
Species: | I. prismatica
|
Binomial name | |
Iris prismatica Pursh
| |
Synonyms [1] | |
|
Iris prismatica, the slender blue flag or cubeseed iris, [2] is a plant species native to parts of the southern and eastern United States from Maine south to Alabama, as well as to the Canadian provinces of Ontario and Nova Scotia. [3] [4] [5]
Iris prismatica is a perennial herb spreading by means of rhizomes that are close to the surface of the soil. Flowering stalks can reach a height of 80 cm. Leaves are long and narrow, up to 60 cm long but rarely more than 5 mm across. It has 2–3 blooms in May. [2] Flowers are pale blue to blue-violet. [6] [7] [8] [9] [10] It tends to grow in swampy, [2] wet conditions, [3] and within the United States, it is currently state listed as 'threatened' in Maine, New Hampshire, New York, and Tennessee, and state listed as 'endangered' in Maryland and Pennsylvania. [11] It is cold hardy to USDA Zone 3. [2]