Name of uncertain derivation.
Plants acaulescent to arborescent with a thickened trunk, rosettes persisting after flowering. Leaves long-lived, fibrous, linear to linear-lanceolate; margins entire, serrulate; tip spineless. Inflorescence a terminal panicle, not bulbiferous. Flowers unisexual (rarely bisexual), rotate, cream to white. Sepals and petals similar, free. Stamens 6, included. Ovary superior, 1-locular. Fruit a 3-lobed capsule.
Grown for the spiky architectural foliage.The genus is sometimes included in Nolina Michx.
About 6 species in Mexico and SW USA.
Arborescent stems with caudiciform base (bottle-shaped); flowers usually unisexual; ovary 1-chambered.
Source: (2005). Agavaceae. In: . Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.