Plants That Start with O

Explore 55 verified plants starting with O, from Orange, Old man, Onion, Olive, Ornamental, Orchid and Oat. Select any entry from these botanical species, shrubs, and greenery below to view definitions and photos, or browse our main plants directory.

Refine list...
JUMP:
Sort:
Group:
Case:
View:
JUMP TO:
Select any word to view available definitions & photosSelect any word for details
Starts with OA3 words
oak
oat
oakleaf
Starts with OB2 words
obedient plant
obedience plant
Starts with OC3 words
ocean spray
oca
ochna
Starts with OD1 words
odontoglossum
Starts with OE1 words
oenothera
Starts with OG1 words
ogeechee
Starts with OH1 words
ohio buckeye
Starts with OK2 words
okra
oka
Starts with OL5 words
old man
olive
oleander
olallieberry
olearia
Starts with OM1 words
omphalodes
Starts with ON3 words
onion
onion powder
oncidium
Starts with OP3 words
opuntia
ophrys
ophiopogon
Starts with OR19 words
orange
ornamental
orchid
oregano
orange blossom
orchardgrass
oriental lily
orchis
origanum
oroblanco
orache
oriental poppy
orchid cactus
ornithogalum
orangequat
ortanique
orange coneflower
orontium
orthrosanthus
Starts with OS5 words
osmanthus
osage orange
oswego tea
osteospermum
ostrowskia
Starts with OU1 words
ourisia
Starts with OX3 words
oxalis
oxeye daisy
oxypetalum
Starts with OZ1 words
ozothamnus

•Browse Plants by Letter (A to Z)

Select a starting letter to browse plants
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.