III. Spiderwort Subclass
-- terrestrial herbs; 2 or more fused carpels; perianth is either well-developed or reduced
| ..... | Basal entire leaves | Alternate entire |
| section III.2.1not petal-like; no petals either not in axils or not hidden fls in spikes or heads | ..... | ..... |
| 0 3-6 3-6 0/0 3-6 0 1 | ..... | 20.818 Sparganiaceae (bur-reed) 1. Sparganium (bur-reed) AE |
| 0 x 2-5 0/0 x 0 1 | ..... | 21.820 Typhaceae (cattail) 1. Typha (cattail) |
| section III.1.3 petals present; petal-like | ..... | ..... |
| 3 3 6 (3) | ..... | 15.654 Commelinaceae (spiderwort) 1.Tradescantia (spiderwort) 2.Murdannia keisak 3.Commelina (dayflower) |
| section III.1.4 | ..... | ..... |
| 3 3 3 3 | 14.652 Xyridaceae (yellow-eyed grass) 1.Xyris | ..... |