Effect of residential community landscape covenants, codes, and restrictions (CC&Rs) on frequency of occurrence and genera richness of landscape plants in residential landscapes in the Phoenix, Arizona, metropolitan area.
| Frequency and genera richness | CC&Rs | No CC&Rs |
|---|---|---|
| Total plant (no./100 m2) | 15.7 a* | 13.0 b |
| Trees (no./100 m2) | 1.8 b | 2.3 a |
| Shrubs (no./100 m2) | 10.5 a | 7.9 b |
| Groundcovers (no./100m2) | 7.2 a | 3.9 b |
| Turf (% total surface cover) | 31% | 44% |
| Genera richness (no./100 m2) | 5.8 a | 4.9 a |
↵*Mean values in rows followed by the same letter are not significantly different, Tukey-Kramer, a = 0.5.