OpenTrees stats
I’ve been building http://opentrees.org, combining tree inventory data from 8 councils and the Waite Arboretum. You can read all about it here: “OpenTrees.org: How to aggregate 373,000 trees from 9 data sources.”
Here are some quick stats taken across the whole database.
Most popular genus:
Eucalyptus (47464) Callistemon (20998) Melaleuca (16426) Corymbia (14844) Ulmus (12076) Acacia (11252) Lophostemon (10616) Prunus (9688) Platanus (9093) Pyrus (7047) Quercus (6308) Fraxinus (5964) Allocasuarina (4675)
Most popular species
Lophostemon confertus (10614) Eucalyptus camaldulensis (9907) Eucalyptus leucoxylon (9422) Callistemon citrinus (7412) Platanus x acerifolia (7287) Corymbia ficifolia (6655) Prunus cerasifera (6050) Callistemon (5593) Corymbia maculata (5387) Eucalyptus melliodora (4688) Melaleuca styphelioides (4213)
Most popular hybrids and cultivars
Platanus x acerifolia (7287) Ulmus x hollandica (745) Ulmus x holl. purpurescens (179) Prunus x blireana (131) Ulmus x hollandica vegeta (122) Populus x canadensis aurea (107) Acer x freemanii (72)
Most popular species by council
adelaide: Platanus x acerifolia ballarat: Quercus robur colac_otways: Lophostemon confertus corangamite: Ulmus procera geelong: Callistemon citrinus manningham: Prunus cerasifera melbourne: Eucalyptus camaldulensis waite arboretum: Ulmus procera
Number of distinct species by council
waite arboretum (860) manningham (537) melbourne (374) corangamite (371) geelong (277) colac_otways (138) ballarat (138) adelaide (67)
Average number of trees per species, by council
(”5″ means there are five times more trees than the number of species present, so each species is represented on average five times.)
waite arboretum (2.35) colac_otways (25) corangamite (40) adelaide (97) manningham (119) melbourne (173) geelong (407) ballarat (409)