PlantaeDB Logo
Login Sign-up

Genus Quararibea in Family Malvaceae

In botanical taxonomy, a genus (plural genera) is a rank used to group closely related species within a family. In the hierarchy, genus sits below family and above species.

Genera are defined by shared morphological, anatomical, and genetic characteristics (for example, features of flowers, fruits, seeds, or leaves) that indicate a close evolutionary relationship among the species they contain.

Each genus can include one or more species. Examples include Rosa (roses) and Solanum (nightshades, including tomato and eggplant).

Do you wish to read more about plant taxonomy? Click here!

Genus Description

Suggest a correction!

Quararibea (Aubl.) is a neotropical genus in Malvaceae (subfamily Bombacoideae), with an estimated 50 species. It occurs from southern Mexico through Central America to northern South America, with several taxa in the Caribbean. The type species is Quararibea comosa (Sw.) (APG II, 2003; Govaerts et al., 2000).

The genus is distinguished by trees and shrubs with typically palmately lobed or compound leaves, often bearing stipitate or peltate foliar glands and a dense, often reddish-brown to silvery stellate indumentum. Flowers are solitary or in few-flowered clusters; the calyx is tubular to campanulate and often 5-toothed with a longitudinal split or “ear” that partially encloses the corolla. The corolla is usually large, white to cream, turning pink as it ages, with five spreading petals. The androecium forms a conspicuous staminal tube bearing numerous anthers fused in a globose head, sometimes fused to the style, with a densely bearded apex. The superior ovary is five-locular with axile placentation and one to several ovules per locule. The fruit is a drupe (Govaerts et al., 2000).

Species richness is centered in lowland rainforests of the Guiana Shield and western Amazonia, with disjunct elements in Central America and the Antilles. Typical habitats span primary and secondary forest, river margins, and secondary growth, from sea level to mid-elevation woodland. The genus shows classic Amazonian–Central American and Caribbean disjunctions and local endemism in mountainous regions (Govaerts et al., 2000).

Pollination appears largely entomophilous, especially by large bees attracted to the showy flowers that darken with age, but direct field studies remain scarce (Govaerts et al., 2000). Seed dispersal is likely by birds and mammals that consume the fleshy drupes. Most Quararibea are evergreen trees, but leaf shedding in drier habitats is reported; vegetative reproduction from roots occurs in some taxa (Govaerts et al., 2000). A stable base chromosome number has not been consistently established.

Taxonomically, Quararibea is placed within Bombacoideae and has long been separated from genera formerly included in the broader Bombacaceae; molecular and morphological evidence from APG II and APG IV (2003; 2016) confirmed its placement in Malvaceae. Major sectional treatments historically recognized include Quaribaea sect. Quararibea and Quararibea sect. Batocarpus, though modern treatments emphasize overall morphological integration across species groups (Govaerts et al., 2000). Alternative re-circumscriptions that split Quararibea into smaller genera are occasionally proposed but not widely adopted (Govaerts et al., 2000).

The genus contributes ornamentals in tropical horticulture and specialty timber in some regions, but many species remain poorly known outside herbaria. Invasion or weediness has not been reported, and the economic footprint remains limited relative to its diversity.

Conservation concerns include habitat loss in lowland forests and incomplete taxonomic documentation; targeted fieldwork and integrative revision are required to clarify species limits and biogeography (Govaerts et al., 2000; APG IV, 2016).

Pick a Species to see its components: