Osage Orange
Maclura pomifera
The Osage orange (Maclura pomifera) is a resilient, thorny tree famous for its heavy rot-resistant …
Smooth-edged osage orange (Maclura subintegerrima)
Silhouette: T. Michael Keesey
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Maclura subintegerrima: Botanical Overview of the Rare Tropical Climber
Discovered in the tropical forests of Southeast Asia, Maclura subintegerrima stands out as a rare woody climber.
This spiny liana forms dense thickets in the understory of moist lowland forests. It plays a role in the local ecosystem by providing cover for small wildlife and adapting to varying light conditions.
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 subintegerrima (Smooth-edged osage orange)
Morphology
The growth habit of this species is characterized by long, climbing branches equipped with sharp, axillary spines. These spines assist the plant in anchoring to surrounding vegetation as it reaches toward the canopy.
The leaves are arranged alternately along the stems, featuring entire margins and a smooth, coriaceous texture. When damaged, the stems secrete a thick, milky latex, which is a characteristic feature of the genus.
The reproductive structures include:
- Dioecious flowering habit, where male and female flowers are borne on separate plants.
- Small, globose inflorescences that cluster in the leaf axils.
- Fleshy, aggregate fruits that develop from the female flower heads.
Applications
While not widely cultivated in commercial agriculture, this species has significance in ecological restoration. The dense growth habit of Maclura subintegerrima makes it suitable for stabilizing forest margins and preventing soil erosion in degraded tropical areas.
Local communities occasionally utilize the tough, flexible branches for constructing traditional wattle fences and rustic structures. The sticky latex has also been explored for minor adhesive purposes in woodcraft.
Interesting facts
- The species was originally classified under the genus Plecospermum by the renowned botanist E. J. H. Corner before being transferred to its current genus.
- The specific epithet subintegerrima refers to the almost completely entire margins of its leaves.
- Its sharp spines serve as a natural defense mechanism against large herbivores in its native habitat.
Geography of distribution
- Thailand
Sources
- Plants of the World Online (POWO): Kew Royal Botanic Gardens
- World Flora Online (WFO): Taxonomic backbone and species database
- Global Biodiversity Information Facility (GBIF): Species distribution data
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 …