Answer:
The appositive phrases that I could find in this passage are:
1. Sentence 1: "three daughters and a son."
2. Sentence 2: "Lilly"
3. Sentence 3: "her best friend"
4. Sentence 4: " a creative couple"
5. Sentence 5: "the florist’s favorite flower"
6. Sentence 10: "a future biologist"
7. Sentence 11: "a son"
8. Sentence 14: "a cactus"
9. Sentence 15: "Saguaro"
10. Sentence 16: "youngest of the florist’s children"
Explanation:
Basically, an appositive phrase is a fancy way of giving more information in a sentence. So if I were to make the sentence "Her pet dog was sick" into an appositive phrase, I could add "Her pet dog, Kevin, was sick"
Some examples (I've underlined the appositive phrases.)
Jenna, an expert at computers, was able to do it.
Her friend's daughter, Stacy, had brown eyes.
She's a lot like Artemis, the Greek goddess of hunting.
I hope that made sense, best of luck :)
