Bulbous plants with a terminal racemose inflorescence; the anthers open introrsely and the capsule is loculicidal.
Pretty liliaceous plants, with simple conspicuously longitudinal-ribbed leaves, the racemose flowers funnel-shaped and deflexed.
Every variety of racemose and paniculate inflorescence obtains, and the number of spikelets composing those of the large kinds is often immense.
Thus we may have a group of racemes, arranged in a racemose manner on a common axis, forming a raceme of racemes or compound raceme, as in Astilbe.
Again, there may be a raceme of capitula, that is, a group of capitula disposed in a racemose manner, as in Petasites, a raceme of umbels, as in ivy, and so on, all the forms of inflorescence being indefinite in disposition.