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Orchid
Orchidaceae
The largest family of flowering plants on Earth, comprising over twenty-five thousand species whose intricate co-evolved blooms occupy nearly every habitat.
If you've been searching for flowers that start with O, you'll find 2 detailed flowers below. We're not interested in giving you only a list of names — every entry on this page links to a full profile with the kind of detail you'd actually want to know.
For flowers, that means scientific name, family, native range, color, season, plant type, and uses.
Table of contents
| Orchid | Oxeye Daisy |
List of Flowers That Start With O
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Oxeye Daisy
Leucanthemum vulgare
The tall white-and-yellow meadow daisy of European grasslands, a classic ingredient of wildflower seed mixes and the lookalike of garden Shasta daisies.
About flowers starting with O
That's our current list of flowers starting with the letter O. We add new entries every week — if you have a favorite flower starting with O that isn't on this page, let us know and we'll write it up.
Looking for more? Try flowers that end with O, or contain O anywhere in the name.