- i.e., i.e., es decir, esto es
- imberbate, glabro, imberbe
- imbricated, imbricado
- imparipinnate, imparipinnado
- imperfect, imperfecto
- implicate, implicado
- inbreeding, endogamia
- incanous, incano
- incised, inciso
- inclinate, inclinado
- included, incluido
- incomplete, incompleto
- incrassate, engrosado
- incubous, incubo
- incumbent, incumbente
- incurved, incurvado
- indehiscent, indehiscente
- indeterminate, indeterminado
- indigenous, nativo
- indistinct, indistinto
- indumentum, indumento
- induplicate, induplicado
- indurated, endurecido
- indusium, indusio
- inequilateral, inequilátero
- inermous, inerme
- inferior, inferior, infero (relativo al ovario)
- inflated, inflado
- inflexed, inflexo
- inflorescence, inflorescencia
- infra-, infra-, infr-
- infracted, infracto
- infrafoliar, infrafoliar
- infrapetiolar, infrapeciolar
- infructescence, infrutescencia
- infundibular, infundibuliforme
- infundibuliform, infundibuliforme
- innate, innato
- inner, interno
- innovation, brote
- inrolled, enrollado hacia adentro
- insectivorous, insectívoro
- inserted, inserto, insertado, pegado, adherido
- insular, insular
- integument, integumento
- inter-, inter-
- intercalary, intercalar, intercalario
- interface, cara
- interfoliar, interfoliar
- interior, interior
- intermittent, interrumpido
- internal, interno
- internodal, internodal
- internode, entrenudo
- interpetiolar, interpeciolar
- interrupted, interrumpido
- interspersed, entremezclado
- interstaminal, interestaminal
- interstitial, intersticial
- intrafoliar, intrafoliar
- intramarginal, intramarginal
- intrapetiolar, intrapeciolar
- intravaginal, intravaginal
- introduced, introducido, exótico
- introrse, introrso
- invagination, invaginación
- inversed, inverso
- inverted, invertido
- involucel, involucelo
- involucral, involucral
- involucre, involucro
- involute, involuto
- irregular flower, flor irregular
- isadelphous, isadelfo
- isocarpic, isocárpico
- isocotylous, isocótilo, isocotiledóneo
- isocyclic, isocíclico
- isodynamous, isodínamo
- isolateral, isolateral
- isomerous, isómero
- isopetalous, isopétalo, homopétalo
- isophyllous, isofilo, homofilo
- isostemonous, isostémono
- iteroparous, iteróparo