Are both Derwentia and Elsholtzia endemic to Australia?
Elsholtzia Elsholtzia is a plant genus in the Lamiaceae (mint family). It is widespread across much of temperate and tropical Asia from Siberia south to China, India, Indonesia, etc.
Grevillea diversifolia Grevillea diversifolia, the variable-leaved grevillea, is a shrub in the family Proteaceae. It is endemic to the south-west of Western Australia. It has an erect or spreading shrub habit, growing to between 1 and 5 metres in height and has a peak flowering period between July and October (mid winter to mid spring) in its native range.