on the fifth sentence of the first paragraph ("there is a league of nations... reduction of armament") yhe author comments on the age and effectiveness of the league of nations primarily to explain

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.

showing or suffering from nervousness, fear, or a lack of confidence

where is the poem at?

a term is used to describe a sudden revelation in a short story is "showing forth".