Mirabilis is a genus of plants in the family Nyctaginaceae known as the four-o'clocks or umbrellaworts. The best known species may be Mirabilis jalapa, the plant most commonly called four o'clock.
There are several dozen species in the genus, of herbaceous plants, mostly found in the Americas. Some form tuberous roots that enable them to perennate through dry and cool seasons. They have small, often fragrant, deep-throated flowers.
Although best known as ornamental plants, at least one species, mauka (M. expansa), is grown for food.
Selected species
Mirabilis albida (Walter) Heimerl
Mirabilis alipes (S.Watson) Pilz
Mirabilis coccinea (Torr.) Benth. & Hook.f. Mirabilis elegans (Choisy) Heimerl Mirabilis expansa (Ruiz & Pav.) Standl. Mirabilis greenei S.Watson Mirabilis himalaica (Edgew.) Heimerl Mirabilis himalaica var. chinensis Heimerl Mirabilis himalaica var. himalaica Mirabilis jalapa L. Mirabilis laevis (Benth.) Curran Mirabilis laevis var. crassifolia (Choisy) Spellenb. Mirabilis laevis var. laevis Mirabilis laevis var. retrorsa (A.Heller) Jeps. Mirabilis laevis var. villosa (Kellogg) Spellenb. Mirabilis linearis (Pursh) Heimerl Mirabilis linearis var. decipiens (Standl.) S.L.Welsh Mirabilis linearis var. linearis Mirabilis linearis var. subhispida (Heimerl) Spellenb. Mirabilis longiflora L. Mirabilis macfarlanei Constance & Rollins Mirabilis multiflora (Torr.) A.Gray Mirabilis nyctaginea (Michx.) MacMill. Mirabilis oblongifolia Mirabilis oxybaphoides (A.Gray) A.Gray Mirabilis pumila Mirabilis rotundifolia (Greene) Standl. Mirabilis tenuiloba Mirabilis viscosa Cav.