Poetry that is written without any formal rhythmic structure or rhyme scheme is called ode epic lyric free verse

d. free verse

Explanation: Poetry that is written without any formal rhythmic structure or rhyme scheme is called free verse. Free verse is a literary device that is free from rhythmic limitations and does not have a fixed rhyme scheme. It follows normal speaking pauses and the poet can shape the poem in the way he likes. Walt Whitman is known as the father of free verse English poetry.

covert: hidden or secret

candid: truthful and straightforward

what i get from these phrases is covert means undercover or underground and that's where the flower is in april. on the other hand, may is the month where flowers start to bloom and thats the reason why candid is being used as a word to describe the blossoming period of a flower.

hope this answer you.

the correct answer is the name of the author of the quotation appears at the text leading up to it   apex 2018