Cornflag Gladiolus communis
Cornflag is an introduced perennial herb, found in the lower 48 states. It grows to 2.1 ft.
More about this plant
Gladiolus communis, the eastern gladiolus, or common corn-flag, is a species of flowering plant in the family Iridaceae, native to temperate northern Africa, western Asia and southern Europe, from the Mediterranean to the Caucasus, and widely naturalised in frost-free locations elsewhere – such as coastal parts of the southwestern British Isles. Wikipedia →
Growing & care
USDA PLANTS · TRY- Hardiness
- ≥ zone 7 derived from its U.S. range
- Height
- 2.1 ft
- Lifespan
- Perennial
- Foliage
- Broadleaf
- Flower colour
- Pink AI AI image-analysis of community-science photos (~87% expert agreement) — not a botanical record
Wildlife & pollinators
How pollinator value is scored →❧ Caterpillar hosts ~17 caterpillar species
Gladiolus supports ~17 caterpillar species.
Native butterfly & moth caterpillars are the base of the terrestrial food web — most songbirds rear their young almost entirely on them. As a host for native Lepidoptera this is a moderate genus for introduced plants — native genera typically support far more.
Recorded feeding on Gladiolus in North America, including:
+ 8 more species → ↑ show fewer
✦ Bees 1 bee visitor
1 native & managed bee species is documented visiting Cornflag :
Related plants
More Gladiolus →
How we know this (2) Methods & honest limits
A recorded categorical fact: each species is tagged C3 (standard), C4 (heat/water-efficient) or CAM (succulent, night-time CO₂ uptake) — or a facultative combination. We only show a trait card for the noteworthy C4/CAM cases; C3 is the unremarkable majority, kept in the data but not surfaced as a card.
McKenzie et al. assigned each species a flower colour with a GPT-4V vision model over iNaturalist photos. We use the confident tier plus a separately-labelled lower-confidence top-up (mostly inconspicuous green/brown flowers), and render it as a small tint — never as an asserted fact, and kept out of the written synopsis.
Honest limits: AI image inference (~87% expert agreement on the confident tier); a decorative, confidence-tiered indicator, not a measured trait.
Sources for this entry (19) Open & cited
Cite this page Open data, please attribute
PlantKey’s data is open under CC BY-SA 4.0 — free to reuse and adapt, with attribution and the same licence. Photos keep their own per-image licence + credit (see Sources above).
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