IMG_8471 by JPierre posted Jan 17, 2019 at 3:59 PM I shall put a photo of the flower soon. It's a lamaciaeae. Thanks for your help.
Very unscientific of me, but the impression I'm getting is one of either perilla related or patchouli related. Mostly because of the dentate leaves. That said, the inflorescence is wrong for either. So it has square stems? Does a crushed stem or petiole have any particular color, I'm thinking maybe orange? What about scent characteristics? Is the leaf thin or fleshy? (It sort of reminds me of Plectranthus spp., too.) Salvia often have somewhat larger flowers for this family, but I'd also expect to see substantial bracts. Was it from the wild?
Thank you for your answer. The plant was in the garden of a friend of a friend... Not a hardy plant. It was possible to do cuttings of it. The leaves are not fleshy. No particular color. Green only. The scent of the leave is not strong at all. Mint ? Could be a Salvia or a Plectranthus but which one ?
Could it be this? T.E.R:R.A.I.N - Taranaki Educational Resource: Research, Analysis and Information Network - Plectranthus saccatus (Stoep Jacaranda, Spurflower)
Many many thanks for your help. It could be that Plectranthus. It's the most credible answer that I have got to my question. Thanks so much All the best JPierre