Osage Orange
Maclura pomifera
The Osage orange (Maclura pomifera) is a resilient, thorny tree famous for its heavy rot-resistant …
Timor Maclura (Maclura timorensis)
Silhouette: T. Michael Keesey
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Maclura timorensis: Profile of the Sunda Islands Thorny Liana
Inhabiting the dry seasonal forests of the Lesser Sunda Islands, Maclura timorensis exhibits remarkable adaptation to arid conditions.
This woody climber or scandent shrub forms intricate, thorny thickets in rocky terrains. It plays an important ecological role by providing shelter for local fauna and stabilizing dry soils.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes (Vascular Plants)
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ Angiosperms
- ∟ mesangiosperms (Core angiosperms)
- ∟ eudicots
- ∟ Superrosids
- ∟ rosids
- ∟ order Rosales
- ∟ family Moraceae
- ∟ genus Maclura (Osage orange)
- ∟ species Maclura timorensis (Timor Maclura)
Morphology
The plant grows as a deciduous shrub or robust liana, armed with formidable axillary spines. These thorns help the climbing stems scramble over rocks and neighboring trees to access sunlight.
The leaves are alternate, simple, and characterized by their coriaceous texture and lanceolate to elliptic shapes. Like other members of the genus, the stems contain lactiferous canals that exude milky latex when cut or damaged.
Its reproductive morphology features:
- Dioecious mating system with separate male and female individuals.
- Tiny, yellowish-green flowers arranged in dense, globose heads.
- Small, fleshy syncarps that turn orange or yellow when fully ripe.
Applications
Although not commercially cultivated, the species serves several local ecological functions. The strong, spiny growth of Maclura timorensis makes it a natural barrier plant for livestock protection in rural areas.
The wood is dense and durable, occasionally harvested by local populations for small hand tools and fuel. Extracts from the bark and roots have also been studied for potential bioactive compounds in ethnobotanical research.
Interesting facts
- The specific name timorensis highlights its discovery and native status on the island of Timor.
- It was first described by German-Dutch botanist Carl Ludwig Blume as Plecospermum timorense in the 19th century.
- The plant sheds its leaves during the peak of the dry season to conserve moisture in its arid habitat.
Geography of distribution
- Indonesia (Lesser Sunda Islands)
- East Timor
Sources
- Plants of the World Online (POWO): Kew Royal Botanic Gardens
- World Flora Online (WFO): Global database of plant species
- Global Biodiversity Information Facility (GBIF): Georeferenced occurrence records
See also
Silkworm thorn
Maclura tricuspidata
A deciduous tree native to East Asia, Maclura tricuspidata is known for its sweet, melon-flavored …
Dyer's mulberry tree
Maclura tinctoria
A medium to large neotropical tree famed for producing fustic, a natural yellow dye historically …
African Osage Orange
Maclura africana
A woody, thorny scrambler native to southeastern Africa and Madagascar, producing small yellow-orange fruits and …