| Lateinischer name | Allgemeiner name | Familie | |
| | | | |
|
Orthosiphon Benth. |
orthosiphon |
Lamiaceae |
|
|
Oryctes nevadensis S. Wats. |
Nevada oryctes |
Solanaceae |
|
|
Oryctes S. Wats. |
oryctes |
Solanaceae |
|
|
Oryza barthii A. Chev. |
Barth s rice |
Poaceae |
|
|
Oryza breviligulata A. Chev. & Roehr. |
>>Oryza barthii |
Poaceae |
|
|
Oryza glaberrima Steudel |
African rice |
Poaceae |
|
|
Oryza L. |
rice |
Poaceae |
|
|
Oryza latifolia Desv. |
broadleaf rice |
Poaceae |
|
|
Oryza longistaminata A. Chev. & Roehr. |
longstamen rice |
Poaceae |
|
|
Oryza punctata Kotzchy ex Steud. |
red rice |
Poaceae |
|
|
Oryza rufipogon Griffiths |
brownbeard rice |
Poaceae |
|
|
Oryza sativa L. |
rice |
Poaceae |
|
|
Oryza sativa L. var. fatua Prain |
>>Oryza sativa |
Poaceae |
|
|
Oryzopsis aequiglumis Duthie ex Hook. f. |
>>Piptatherum aequiglume |
Poaceae |
|
|
Oryzopsis asperifolia Michx. |
roughleaf ricegrass |
Poaceae |
|
|
Oryzopsis bloomeri (Boland.) Ricker |
>>Achnatherum ×bloomeri |
Poaceae |
|
|
Oryzopsis caduca Beal |
>>×Achnella caduca |
Poaceae |
|
|
Oryzopsis canadensis (Poir.) Torr. |
>>Piptatherum canadense |
Poaceae |
|
|
Oryzopsis coerulescens (Desf.) Hack. [excluded] |
>>Piptatherum coerulescens |
Poaceae |
|
|
Oryzopsis contracta (B.L. Johnson) Schlechter |
>>Achnatherum contractum |
Poaceae |
|
|
Oryzopsis exigua Thurb. |
>>Piptatherum exiguum |
Poaceae |
|
|
Oryzopsis hendersonii Vasey |
>>Achnatherum hendersonii |
Poaceae |
|
|
Oryzopsis holciformis (M. Bieb.) Hackel |
ricegrass |
Poaceae |
|
|
Oryzopsis hymenoides (Roemer & J.A. Schultes) Ricker ex Piper |
>>Achnatherum hymenoides |
Poaceae |
|
|
Oryzopsis hymenoides (Roemer & J.A. Schultes) Ricker ex Piper var. contracta B.L. Johnson |
>>Achnatherum contractum |
Poaceae |
|
|
Oryzopsis kingii (Boland.) Beal |
>>Ptilagrostis kingii |
Poaceae |
|
|
Oryzopsis Michx. |
ricegrass |
Poaceae |
|
|
Oryzopsis micrantha (Trin. & Rupr.) Thurb. |
>>Piptatherum micranthum |
Poaceae |
|
|
Oryzopsis microcarpa Pilg. |
>>Piptatherum microcarpum |
Poaceae |
|
|
Oryzopsis miliacea (L.) Benth. & Hook. f. ex Aschers. & Schweinf. |
>>Piptatherum miliaceum |
Poaceae |
|
|
Oryzopsis molinioides (Boiss.) Hack. ex Paulsen |
>>Piptatherum molinioides |
Poaceae |
|
|
Oryzopsis munroi Stapf |
>>Piptatherum munroi |
Poaceae |
|
|
Oryzopsis paradoxa (L.) Nutt. |
>>Piptatherum paradoxum |
Poaceae |
|
|
Oryzopsis pungens (Torr. ex Spreng.) A.S. Hitchc. |
>>Piptatherum pungens |
Poaceae |
|
|
Oryzopsis purpurascens Hack. ex Paulsen |
>>Piptatherum purpurascens |
Poaceae |
|
|
Oryzopsis racemosa (Sm.) Ricker ex A.S. Hitchc. |
>>Piptatherum racemosum |
Poaceae |
|
|
Oryzopsis songarica (Trin. & Rupr.) B. Fedtsch. |
>>Piptatherum songaricum |
Poaceae |
|
|
Oryzopsis swallenii C.L. Hitchc. & Spellenberg |
>>Achnatherum swallenii |
Poaceae |
|
|
Oryzopsis webberi (Thurb.) Benth. ex Vasey |
>>Achnatherum webberi |
Poaceae |
|
|
Osmadenia Nutt. |
osmadenia |
Asteraceae |
|
|
Osmadenia tenella Nutt. |
false rosinweed |
Asteraceae |
|
|
Osmanthus americanus (L.) Benth. & Hook. f. ex Gray |
devilwood |
Oleaceae |
|
|
Osmanthus americanus (L.) Benth. & Hook. f. ex Gray var. americanus |
devilwood |
Oleaceae |
|
|
Osmanthus americanus (L.) Benth. & Hook. f. ex Gray var. megacarpus (Small) P.S. Greene |
devilwood |
Oleaceae |
|
|
Osmanthus delavayi Franch. |
|
Oleaceae |
|
|
Osmanthus floridanus Chapman |
>>Osmanthus americanus var. americanus |
Oleaceae |
|
|
Osmanthus fragrans Lour. |
sweet osmanthus |
Oleaceae |
|
|
Osmanthus heterophyllus (G. Don) P. S. Green |
holly osmanthus |
Oleaceae |
|
|
Osmanthus ilicifolius (Hassk.) Mouillef. |
>>Osmanthus heterophyllus |
Oleaceae |
|
|
Osmanthus Lour. |
devilwood |
Oleaceae |
|
|
Osmanthus megacarpus (Small) Small ex Little |
>>Osmanthus americanus var. megacarpus |
Oleaceae |
|
|
Osmanthus sandwicensis (Gray) Knobl. |
>>Nestegis sandwicensis |
Oleaceae |
|
|
Osmanthus ×fortunei Carriere |
Fortune`s osmanthus |
Oleaceae |
|
|
Osmaronia cerasiformis (Torr. & Gray ex Hook. & Arn.) Greene |
>>Oemleria cerasiformis |
Rosaceae |
|
|
Osmia borinquensis Britt. |
>>Chromolaena borinquensis |
Asteraceae |
|
|
Osmia corymbosa (Aubl.) Britt. & P. Wilson |
>>Chromolaena corymbosa |
Asteraceae |
|
|
Osmia frustrata (B.L. Robins.) Small |
>>Chromolaena frustrata |
Asteraceae |
|
|
Osmia geraniifolia (Urban) Britt. & P. Wilson |
>>Chromolaena geraniifolia |
Asteraceae |
|
|
Osmia ivifolia (L.) Schultz-Bip. |
>>Chromolaena ivifolia |
Asteraceae |
|
|
Osmia odorata (L.) Schultz-Bip. |
>>Chromolaena odorata |
Asteraceae |
|
|
Osmia sinuata (Lam.) Britt. & P. Wilson |
>>Chromolaena sinuata |
Asteraceae |
|
|
Osmorhiza ambigua (Gray) Coult. & Rose |
>>Osmorhiza occidentalis |
Apiaceae |
|
|
Osmorhiza aristata (Thunb.) Makino & Yabe var. brevistylis (DC.) Boivin |
>>Osmorhiza claytonii |
Apiaceae |
|
|
Osmorhiza aristata (Thunb.) Makino & Yabe var. longistylis (Torr.) Boivin |
>>Osmorhiza longistylis |
Apiaceae |
|
|
Osmorhiza aristata (Thunb.) Rydb. [excluded] |
|
Apiaceae |
|
|
Osmorhiza berteroi DC. |
sweetcicely |
Apiaceae |
|
|
Osmorhiza bipartriata Constance & Shan [orthographic error] |
>>Osmorhiza mexicana ssp. bipatriata |
Apiaceae |
|
|
Osmorhiza bipatriata Constance & Shan |
>>Osmorhiza mexicana ssp. bipatriata |
Apiaceae |
|
|
Osmorhiza brachypoda Torr. |
California sweetcicely |
Apiaceae |
|
|
Osmorhiza brachypoda Torr. var. fraterna Jepson |
>>Osmorhiza brachypoda |
Apiaceae |
|
|
Osmorhiza brevipes (Coult. & Rose) Suksdorf |
>>Osmorhiza berteroi |
Apiaceae |
|
|
Osmorhiza chilensis Hook. & Arn. |
>>Osmorhiza berteroi |
Apiaceae |
|
|
Osmorhiza chilensis Hook. & Arn. var. cupressimontana (Boivin) Boivin |
>>Osmorhiza depauperata |
Apiaceae |
|
|
Osmorhiza chilensis Hook. & Arn. var. purpurea (Coult. & Rose) Boivin |
>>Osmorhiza purpurea |
Apiaceae |
|
|
Osmorhiza claytonii (Michx.) C.B. Clarke |
Clayton s sweetroot |
Apiaceae |
|
