| 21. | The tip of the ligule is often divided into teeth, each one representing a petal.
|
| 22. | Its ligule is a ring of hairs, as in heath grass ( Danthonia decumbens ).
|
| 23. | The ligules are blunt, long.
|
| 24. | The white ray florets are furnished with a ligule, while the disc florets are yellow.
|
| 25. | The ligule is pointed and silvery.
|
| 26. | The inflorescence is a cluster of several ligules with toothed tips, but no disc florets.
|
| 27. | It does not have any ligule.
|
| 28. | Each " petal " consists of a ligule composed of fused petals of an asymmetrical ray flower.
|
| 29. | The leaf blades are long and wide, with an acute or acuminate ligule up to long.
|
| 30. | Leaves are up to 45 cm long, with a V-shaped ligule of dense hairs.
|
