Questions & Answers about Flos rarus in horto crescit.
The subject is flos.
You can tell because:
- flos is in the nominative singular, the case normally used for the subject.
- crescit is third person singular, so it matches a singular subject.
So flos is the thing doing the action of growing.
Because rarus is an adjective describing flos, and Latin adjectives must agree with the nouns they describe in:
- gender
- number
- case
Here, flos is:
- masculine
- singular
- nominative
So the adjective also has to be masculine singular nominative: rarus.
Because flos and rarus belong to different declension patterns.
- rarus is a first/second-declension adjective, so its masculine nominative singular form ends in -us.
- flos is a third-declension noun, and third-declension nominative singular forms can have many different endings.
So both words are nominative singular masculine, but they do not have to look the same.