Larger Blue Flag, Northern Blue Flag
Iris versicolor
Found in calcareous fens and marshes, mafic fens, tidal marshes and swamps, interdune ponds, shores. FloraQuest, phone app (app page) What its natural habitat tells you
Native to Virginia. How scores work Is it native here?
Profile 47%
- Light
- Up to 6 hours of direct sun
- Soil moisture
- Moist to wet
No photograph yet. Looking for an old drawing…
At a glance
Not yet recorded · Height · Spread · Life cycle · Leaves · Bloom
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 27 Virginia counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.



Open, herb-covered wetlands with fresh, non-tidal water.
Wet, open, peaty mountain wetlands fed by seepage, often with sphagnum moss.
Coastal tidal marshes (salinity not stated)
Tidal marshes of the Atlantic and Gulf coasts where the source does not say whether the water is fresh, brackish or salt. A stated salinity files the marsh under freshwater tidal marshes or salt and brackish marshes instead.
Who uses this plant?
12CaterpillarsGenus host records with ranges including VA
Genus host records with ranges including VA · Iris
- Amphipoea americanaAmerican Ear Moth, American Borer
- Endothenia hebesanaVerbena Bud Moth
- Helotropha reniformisAmerican Crescent Borer, Reniform Celaena, Reniform Helotropha
- Macronoctua onustaIris Border Moth, Iris Root Borer
- Moodna ostrinellaDarker Moodna
- Orgyia leucostigmaWhite-Marked Tussock Moth
- Papaipema cataphractaBurdock Border, Potato-Stalk Borer
- Papaipema nebrisStalk Borer
- Tetracis cachexiataWhite Slant-Line
- Thyridopteryx ephemeraeformisEvergreen Bagworm Moth
Show all 12
- Xanthopastis regnatrixConvict Caterpillar, Spanish Quaker, Spanish Moth
- Xylena nuperaRed Swordgrass Moth, American Swordgrass Moth, False Armyworm
15BeesSoutheastern regional records
Southeastern regional records · Iris
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
1BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Iris
- Meleagris gallopavoWild Turkey
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Family not recorded
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Conservation status
| Virginia rank | S3 |
|---|---|
| Global rank | Not available |
| VA status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- Virginia DCR Natural Heritage rare plant list
- Digital Atlas of the Virginia Flora
- FloraQuest: Northern Tier (Weakley), phone app (app page)
- NatureServe Explorer
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

