Table 1. Top 10 most imbalanced nodes (SG) and their derived clades.
| Imbalance (SG) | Sister clades | Age, mya | Node support/(source ref.) | Pollination mode | Dispersal mode | Habit | Strictly dioecious | Chromosome no. | Geographic distribution | Lifestyle |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.0002 | Lamiales I* | 77 | 53/(25) | Biotic/? | Poly | Poly | None | 6-96 | Cosmopolitan | Poly |
| Plocospermataceae | ? | Abiotic | Woody | None | ? | Central America | Perennial | |||
| 0.0002 | Poaceae | 41 | 97/(66) | Abiotic | Poly | Poly | Poly | 4-122 | Cosmopolitan | Poly |
| Ecdeiocoleaceae | Abiotic | ? | Herbaceous | None | ? | Australia | Perennial | |||
| 0.0004 | Monocots | 133 | 87/(26) | Poly | Poly | Poly | Poly | 4-180† | Cosmopolitan | Poly |
| Acoraceae | ? | Poly | Herbaceous | None | 24 | Old World and North America | Perennial | |||
| 0.0007 | Asparagales* | 72 | 69/(26) | Biotic/? | Poly | Poly | Poly | 6-180 | Cosmopolitan | Perennial |
| Xeronemataceae | ? | Biotic | Herbaceous | None | ? | New Zealand and New Caledonia | Annual | |||
| 0.0010 | Lamiales II* | 64 | 43/(25) | Biotic/? | Poly | Poly | None | 6-96 | Cosmopolitan | Poly |
| Tetrachondraceae | ? | Abiotic | Herbaceous | None | ? | New Zealand and Patagonia | Perennial | |||
| 0.0011 | Fabaceae | 64 | 54/(28) | Biotic | Poly | Poly | None | 10-112 | Cosmopolitan | Poly |
| Surianaceae | ? | Biotic | Woody | None | ? | Pan subtropical to tropical | Perennial | |||
| 0.0012 | Caryophyllales I* | 85 | 98/(28) | Poly | Poly | Poly | Poly | 12-144 | Cosmopolitan | Poly |
| Asteropeiaceae/Physenaceae | Abiotic/? | Abiotic | Woody | Poly | ? | Madagascar | Perennial | |||
| 0.0014 | Caryophyllales II* | 74 | 40/(25) | Poly | Poly | Poly | Poly | 12-144 | Cosmopolitan | Poly |
| Stegnospermaceae | ? | Abiotic | Woody | None | ? | North & central America | Perennial | |||
| 0.0015 | Ranunculales* | 119 | 88/(26) | Poly | Poly | Poly | Poly | 12-56† | Cosmopolitan | Poly |
| Eupteleaceae | Abiotic | Abiotic | Woody | None | 28 | East Asia | Perennial | |||
| 0.0015 | Cyperaceae/Juncaceae | 47 | 55/(28) | Poly | Abiotic | Poly | Poly | 12-112† | Cosmopolitan | Poly |
| Thumiaceae | Abiotic | Abiotic | Herbaceous | None | ? | North South America | ? |
Bold indicates the larger clade; the respective nodes are indicated in Fig. 1 by asterisks. Other than where stated, ecological data were derived from Watson and Dallwitz's online database (refs. 49 and 50 and http://biodiversity.uno.edu/delta/angio). Poly, polymorphic; ?, unknown.
*
Taxonomic description of clades is given in Table 6.
†
Values obtained from Plant DNA C-values Database 2.0 (www.rbgkew.org.uk/cval/homepage.html).