Iris pseudacorus L.
Yellow flag, paleyellow iris
[An article has not been written yet.]
6/9/2025 · Curtis Farm Preserve, Harpswell, Maine · ≈ 9 × 10″ (24 × 26 cm) 
6/2/2010 · J. Harry Rich State Forest, Groton, Massachusetts 
6/8/2010 · Nashua River Rail Trail, Groton, Massachusetts 
6/8/2010 · Nashua River Rail Trail, Groton, Massachusetts · ≈ 4½ × 4½″ (11 × 11 cm) 
6/16/2013 · Birch Point State Park, Owl’s Head, Maine · ≈ 1 × 1′ (34 × 31 cm) 
6/16/2013 · Birch Point State Park, Owl’s Head, Maine · ≈ 9 × 6″ (23 × 16 cm) 
6/14/2017 · J. Harry Rich State Forest, Groton, Massachusetts 
6/14/2017 · J. Harry Rich State Forest, Groton, Massachusetts · ≈ 1½ × 1′ (52 × 34 cm) 
6/2/2010 · J. Harry Rich State Forest, Groton, Massachusetts · ≈ 12 × 17″ (29 × 44 cm) 
6/9/2025 · Curtis Farm Preserve, Harpswell, Maine · ≈ 1 × 1½′ (34 × 47 cm) 
6/7/2017 · Burns Loop Trail, Beaver Brook Conservation Area, Burns/Holland Farm, Milford, New Hampshire · ≈ 6 × 4½″ (15 × 12 cm) 
5/27/2016 · Acton Arboretum, Acton, Massachusetts 
6/16/2013 · Birch Point State Park, Owl’s Head, Maine · ≈ 11 × 10″ (27 × 25 cm) 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Liliopsida | Monocots (plants with a single seed leaf); includes the lily family |
| Subclass | Liliidae | Includes lilies, orchids, and many others |
| Order | Asparagales | A diverse group that includes asparagus |
| Family | Iridaceae | Iris family—perennial plants that grow from bulbs—also includes crocuses, gladiolas, and the genus Moraea |
| Genus | Iris | Named for the Greek goddess of the rainbow |
| Species | pseudacorus | Means “false acorus,” because its leaves resemble Acorus calamus |
Iris pseudacorus description by Thomas H. Kent, not updated.
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