ösümlük

/øsymlyk/

Cases

SingularPluralWhen to use it
nominativeösümlükthe plantösümlüklethe plantsthe plain dictionary form — the doer of the sentence
genitiveösümlüknüthe plant'sösümlüklenithe plants'the owner — whose it is
accusativeösümlüknüthe plant (as the object)ösümlüklenithe plants (as the object)a specific, known object — whom or what
dativeösümlükgeto the plantösümlüklegeto the plantsdirection or recipient — to where, to whom
locativeösümlükdeat / in the plantösümlükledeat / in the plantswhere it is; also having — mende bar, "I have it"
ablativeösümlükdenfrom the plantösümlükledenfrom the plantswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
myösümlügümmy plantösümlüklerimmy plants
yourösümlügüngyour plantösümlükleringyour plants
his / herösümlügühis / her plantösümlüklerihis / her plants
ourösümlügübüzour plantösümlükleribizour plants
you all'sösümlügügüzyou all's plantösümlüklerigizyou all's plants
theirösümlükleritheir plantösümlükleritheir plants

The overlap in the last rows is real, not a mistake: ösümlükleri can mean "his / her plants", "their plant", or "their plants" — context decides.