What does the cryptic crossword clue "Wild Erica2,3 Arborea1,2,3 (5)" mean?

The wordplay uses an anagram. anagram of RI (synonym="‘e RI ca2,3") + ARB (synonym="‘ ARB orea1,2,3") = BRIAR The answer is BRIAR.

Wild Erica2,3 Arborea1,2,3 (5)

Guardian Cryptic #29049 | 21 Down | 2023-04-20 flower