Salvia hispanica: Inflorescences
Salvia hispanica growing at the Royal Tasmanian Botanical Gardens. This is one of a couple of Salvia species referred to as Chia (another notable species is Salvia columbariae . Interesting entry in wikipedia. Apparently the plant was grown for it's edible seed by the Aztecs. Cultivation is now in revival as the seed has a very high omega 3 oil content.