Iridaceae - iris family
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Maine is home to 10 species in 2 genera (hybrids excluded). If you know which species you have or are interested in learning about, click on the appropriate link from the species list below. Otherwise, to determine which genus your member of the iris family belongs to, refer to the table below the species list.
Iris (5 species)
Iris hookeri - beach-head iris
Iris prismatica - slender blue iris
Iris pseudacorus - yellow iris
Iris pumila - dwarf iris
Iris versicolor - blue iris
Sisyrinchium (5 species)
Sisyrinchium albidum - white blue-eyed-grass
Sisyrinchium angustifolium - narrow-leaved blue-eyed-grass
Sisyrinchium atlanticum - eastern blue-eyed-grass
Sisyrinchium montanum - strict blue-eyed-grass
Sisyrinchium mucronatum - needle-tipped blue-eyed-grass
| leaf width | petal markings | |
| Iris | 5–30 mm | spotted or streaked |
| Sisyrinchium | 0.8–5 mm | no noticeable spots |
Iris (iris)
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| red font = character state unique or nearly so | leaf width | petal length | char. 3 | char. 4 | char. 5 |
| Iris hookeri | 5–14 mm | 10–20 mm | |||
| Iris prismatica | |||||
| Iris pseudacorus | |||||
| Iris pumila | |||||
| Iris versicolor | 10–30 mm | 20–50 mm |
Iris hookeri (beach-head iris) - [information to be added]
Iris prismatica (slender blue iris) - [information to be added]
Iris pseudacorus (yellow iris) - [information to be added]
Iris pumila (dwarf iris) - [information to be added]
Iris versicolor (blue iris) - [information to be added]
(click on image to enlarge)
Sisyrinchium (blue-eyed-grass)
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| red font = character state unique or nearly so | char. 1 | char. 2 | char. 3 | char. 4 | char. 5 |
| Sisyrinchium albidum | |||||
| Sisyrinchium angustifolium | |||||
| Sisyrinchium atlanticum | |||||
| Sisyrinchium montanum | |||||
| Sisyrinchium mucronatum |
Sisyrinchium albidum (white blue-eyed-grass) - [information to be added]
Sisyrinchium angustifolium (narrow-leaved blue-eyed-grass) - [information to be added]
Sisyrinchium atlanticum (eastern blue-eyed-grass) - [information to be added]
Sisyrinchium montanum (strict blue-eyed-grass) - [information to be added]
(click on an image to enlarge)
Sisyrinchium mucronatum (strict blue-eyed-grass) - [information to be added]
Note:
1. Taxonomy and nomenclature follow Flora Novae Angliae by Arthur Haines (2011, Yale University Press, ISBN 978-0-300-17154-9).