Table 4. Life history traits of naturalized plant species for each of the five mediterranean climate regions.
| Life history trait | California | Chile | Med. Basin | South Africa | SW Australia | |
| Growth Form | Herb | 504 (82) | 324 (93) | 266 (64) | 77 (44) | 652 (82) |
| Shrub | 69 (11) | 19 (5) | 106 (26) | 30 (17) | 103 (13) | |
| Tree | 44 (7) | 6 (2) | 42 (10) | 67 (39) | 36 (5) | |
| Life cycle | Annual | 192 (31) | 176 (50) | 120 (29) | 20 (11) | 280 (35) |
| Annual/Biennial | 12 (2) | 16 (5) | 1 (0) | (0) | 41 (5) | |
| Annual/Perennial | 26 (4) | 8 (2) | 3 (1) | 2 (1) | 68 (9) | |
| Biennial | 16 (3) | 13 (4) | 7 (2) | 1 (1) | 7 (1) | |
| Perennial | 371 (60) | 136 (39) | 279 (68) | 151 (87) | 395 (50) | |
| Life form | Therophyte | 192 (31) | 187 (54) | 118 (29) | 21 (12) | 357 (45) |
| Therophyte/other | 33 (5) | 23 (7) | 4 (1) | 1 (1) | 25 (3) | |
| Hemicriptophyte | 232 (38) | 89 (26) | 78 (19) | 32 (18) | 24 (3) | |
| Hemicryptophyte/other | 0 (0) | 6 (2) | 2 (0) | 1 (1) | 4 (1) | |
| Geophytes | 13 (2) | 9 (3) | 37 (9) | 9 (5) | 160 (20) | |
| Hydrophyte | 34 (6) | (0) | 24 (6) | 9 (5) | 14 (2) | |
| Chamaephyte | 22 (4) | 12 (3) | 28 (7) | 9 (5) | 121 (15) | |
| Phanerophyte | 91 (15) | 23 (7) | 119 (29) | 92 (53) | 86 (11) | |
Numbers in parenthesis are percentage values within a region.