Description
Key Characters:
Growth Form:
Succulent perennial or annual herbs, from fibrous or occasionally tuber-like roots.
Stems:
Stems prostrate, ascending, or erect or plants rarely acaulescent (without an obvious stem).
Roots:
Fibrous root system.
Leaves:
Leaves simple.
Alternate, spiralled.
Blades lanceolate, ovate, or elliptic, flat or somewhat channeled.
Margins entire.
Veins parallel.
Sheathing, sheath membranous and often closed.
Stipules absent.
Flowers:
Flowers 1–2, in leaf–opposed or terminal, few–flowered cymes subtended by a spathe-like bract, flowers exserted from the bract shortly after sunrise and open until midday.
Flowers bisexual (perfect), irregular.
Calyx of 3 sepals 1 shorter, the lateral 2 sometimes connate.
Corolla of 3 petals, usually blue, the lateral 2 larger clawed, the lower one usually colored differently.
Fertile stamens 3 on lower side of flower, with 2–3 staminodes above the fertile stamens.
Ovary superior, 3-carpellate, 2–3-celled; ovules 1–2 in two cells , the other sterile or with 1 ovule.
Fruit:
Capsules 2–3–celled.
Seeds 1–5 per capsule; pitted or wrinkled.
Ploidy:
Habitat:
Elevation Range: