Osage Orange
Maclura pomifera
The Osage orange (Maclura pomifera) is a resilient, thorny tree famous for its heavy rot-resistant …
Thorel's Maclura (Maclura thorelii)
Silhouette: T. Michael Keesey
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Maclura thorelii - Spiny Woody Climber of Indochina
Inhabiting the dense monsoon forests of Indochina, Maclura thorelii stands out as a resilient woody climber characterized by its formidable spines and milky sap.
This wild species thrives in warm, humid tropical environments, often scaling larger forest trees to access sunlight.
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 thorelii (Thorel's Maclura)
Morphology
The botanical structure of this species displays several adaptations for its climbing habit. The woody stems are armed with sharp, stout spines that facilitate anchoring onto surrounding vegetation.
Its leaves are arranged alternately, showing an oblong-elliptic shape with entire margins and a prominent midrib. The root system and stems produce a thick, sticky milky latex when damaged, serving as a defense mechanism against herbivores.
- Stems: Woody, climbing, armed with axillary spines.
- Leaves: Alternate, simple, glossy dark green.
- Inflorescence: Dioecious, capitate clusters arising from leaf axils.
Applications
In local communities of Indochina, parts of the plant are harvested for traditional remedies. The roots and heartwood are known to contain active compounds like xanthones, which are studied for anti-inflammatory effects.
Additionally, the dense, thorny growth habit makes it suitable for creating natural protective barriers and land boundaries in rural areas.
Interesting facts
The specific epithet honors Clovis Thorel, a French botanist who conducted extensive plant collections during the Mekong Exploration Commission in the 1860s.
Like other members of its genus, it relies on specialized insects for pollination, maintaining a delicate ecological balance within its native forest habitat.
Geography of distribution
- Vietnam
- Laos
Sources
- Plants of the World Online (POWO), Kew Science
- World Flora Online (WFO) Portal
- Global Biodiversity Information Facility (GBIF) Database
- International Plant Names Index (IPNI)
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 …