Funny, when I first went to England I went to Kew with a botanist working there. I asked "What's that plant?" reply "it's a Hebe". We'd walk another 10 ft "what's that?", reply "it's a Hebe". We'd walk another 10 ft "what's that?", reply "it's a Hebe". Soon I realized if I didn't know a plant it was surely a Hebe. Since then the question has been "Which Hebe is that?". No firms answers but lots of conjecture.
Glad you got a answer to this one!
johnw