Baobab is the common name for several iconic, swollen-trunk trees in the genus Adansonia (baobab genus), famous for storing water and thriving where many trees cannot. Most baobabs are native to Africa and Madagascar, with one species occurring in northwestern Australia.
At maturity, baobabs commonly reach 5–25 m tall, but can develop extraordinary girths that make them ecological landmarks and cultural symbols. Their ability to persist through long dry seasons makes them a flagship example of Drought tolerance in plants and an important resource tree for people and wildlife.
Baobabs belong to the family Malvaceae (subfamily Bombacoideae), which also includes kapok relatives. The genus is Adansonia, comprising 9 recognized species: 6 endemic to Madagascar, 2 in mainland Africa and the Arabian Peninsula, and 1 in Australia.
The best-known African species is Adansonia digitata. Many regional “baobab” names refer to different Adansonia species, but they share a characteristic pachycaul (thick-stemmed) architecture adapted to seasonal drought.
Baobabs are defined by their stout trunks, often 7–15 m in diameter in large specimens; circumferences of 20–30 m are documented for exceptional trees. Rather than forming a single solid column, older individuals can develop hollow, multi-stemmed architectures formed by fused stems and internal cavities.
The bark is typically smooth to fibrous and gray-silver, and it can regenerate after damage, helping the tree withstand fire and browsing. Leaves are deciduous in dry seasons, usually palmately compound with 5–7 leaflets, which reduces water loss when rainfall stops.
Flowers are large, showy, and usually white to cream with prominent stamens; many open at dusk and last for a single night. This timing is closely tied to Pollination by bats, a key mutualism in several baobab species.
The fruit is an ovoid, woody-shelled capsule often 10–25 cm long, containing hard seeds embedded in a dry, vitamin-rich pulp. Seeds are tough and long-lived, and the fruit’s shape and buoyant, fibrous interior help it persist on the ground until dispersers arrive.
In mainland Africa, A. digitata is widespread across the semi-arid to sub-humid tropics, especially in the African savanna and open woodlands. It is most abundant where there is a strong seasonal rainfall pattern, typically with 250–1,000 mm of rain per year and a pronounced dry season.
Madagascan species occupy varied habitats, including dry deciduous forests, spiny thickets, and seasonally flooded areas, often on sandy or lateritic soils. Many baobabs tolerate poor, well-drained substrates, but they generally establish best where water is available during the wet season and competition from closed-canopy forest is limited.
Baobabs are frost-sensitive and largely restricted to tropical and warm subtropical zones. They are increasingly planted beyond their native ranges in suitable climates, but successful long-term growth still depends on heat, sun, and seasonal moisture pulses.
Baobabs act as seasonal resource hubs, offering nectar, pollen, fruit pulp, seeds, and shelter at times when the surrounding landscape is dry. Their flowers support nocturnal pollinators, while fallen fruits and seedlings feed a wide range of mammals, including primates and ungulates.
Fruit handling and movement by animals contributes to Seed dispersal, spreading seeds into disturbed soils and river corridors where germination is more likely. In some regions, large herbivores also scarify seeds during digestion, improving germination rates after the first rains.
Despite being shorter than many forest giants, baobabs can store substantial carbon because of their enormous trunk volumes. A large adult A. digitata can contain on the order of several to tens of tonnes of above-ground biomass, contributing to local How forests store carbon even in sparsely wooded savannas.
Baobabs also influence microclimates: shade beneath the crown can reduce soil temperatures and evaporation, while trunk cavities provide nesting and roosting spaces. Their water-rich tissues and deciduous habit help them maintain function during drought, supporting biodiversity through seasonal extremes.
Baobab fruit pulp is widely consumed and traded; it is notably high in vitamin C and is used in drinks, porridges, and confectionery. Leaves are eaten as a vegetable in parts of Africa, and seeds can be processed for oil or roasted and ground in traditional foods.
The bark yields strong fiber used for rope, cloth, and basketry, and careful harvesting can be sustainable because the bark can regrow. In many communities, baobabs serve as meeting places, boundary markers, and sacred sites, and individual trees can be tied to local histories for generations.
Lifespan is one of the baobab’s most celebrated traits: many trees live 500–1,000 years, and some may exceed 1,500–2,000 years under favorable conditions. As long-lived trees in working landscapes, they provide steady ecosystem services and reliable wild foods even when crops fail.