Iracilda

Iragoides

Iranellinae

Irania

Irania gutturalis

IRAS infrared satellite

Ircila

Irediparra gallinacea

Irenidae

Iresine

Iresine herbstii

Iridaceae

Irideae

Iridictyon

Iridium

Iridoideae

Iridophanes

Iridopterygidae

Iridopteryginae

Iridopteryx

Iridosornis

IRIS, ESRO-2B

Iris (Infrared Imaging Surveyor/Astro-F)

Iris (Tarachodidae)

Iris

Iris aphylla
Iris brevicaulis
Iris douglasiana
Iris hexagona
Iris japonica
Iris prismatica
Iris pseudacorus
Iris reichenbachii
Iris variegata
Iris verna var. verna
Iris virginica

Iris subg. Hermodactyloides
Iris subg. Iris
Iris subg. Limniris
Iris subg. Nepalensis
Iris subg. Scorpiris
Iris subg. Xiphium

Iron

Iron peak

Irona

Ironomyia

Ironomyiidae

Irregular galaxy

Irvingiaceae

Irwin, John Henry Barrows