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Platymiscium trinitatis - Benth.

Common Name Macacauba, Macawood, Hormigo, Orange Agate
Family Fabaceae
USDA hardiness 10-12
Known Hazards None known
Habitats Found in a wide variety of habitats; in savannah, forest transition to savannah, periodically inundated forests, humid deciduous forests; sometimes dominant in thorn scrub. Mainly found on clayey soils at elevations up to 550 metres[904 ].
Range S. America - Brazil, Bolivia, Peru, Venezuela, the Guyanas; Caribbean - Trinidad.
Edibility Rating    (0 of 5)
Other Uses    (4 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Tender Moist Soil Full sun
Platymiscium trinitatis Macacauba, Macawood, Hormigo, Orange Agate

Platymiscium trinitatis Macacauba, Macawood, Hormigo, Orange Agate


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Physical Characteristics

 icon of manicon of lolypop
Platymiscium trinitatis is a TREE growing to 22 m (72ft) by 18 m (59ft) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 10. The flowers are pollinated by Bees.
It can fix Nitrogen.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and can grow in heavy clay soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map


Platymiscium duckei Huber Platymiscium nigrum Ducke

Plant Habitats

Edible Uses

None known

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

The fresh leaves are used as a poultice to treat headaches[904 ].

References   More on Medicinal Uses

The Bookshop: Edible Plant Books

Our Latest books on Perennial Plants For Food Forests and Permaculture Gardens in paperback or digital formats.

Food Forest Plants for Hotter Conditions: 250+ Plants For Tropical Food Forests & Permaculture Gardens.
Edible Tropical Plants

Food Forest Plants for Hotter Conditions: 250+ Plants For Tropical Food Forests & Permaculture Gardens.

Plants for Your Food Forest: 500 Plants for Temperate Food Forests & Permaculture Gardens.
Edible Temperate Plants

Plants for Your Food Forest: 500 Plants for Temperate Food Forests & Permaculture Gardens.

PFAF have eight books available in paperback and digital media.
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Other Uses

Furniture  Wood

Agroforestry Uses: The flowers are very sweetly scented and very attractive to bees[904 ]. Other Uses The heartwood is rose-brown with irregular veins; it is clearly demarcated from the 5 - 10cm wide band of white sapwood. The texture is medium; the grain straight or interlocked, sometimes wavy. The wood is moderately heavy to heavy; hard to very hard; elastic; durable, being resistant to fungi, dry wood borers and termites. It seasons somewhat slowly, with only a slight risk of checking or distortio; once dry it is stable in service. It works well with ordinary tools; takes a good polish; nailing and screwing are good, but require pre-boring; gluing is correct. A beautiful and expensive timber usually reserved for first class end uses, it is used in construction, high class furniture and cabinet making, billiard cues, turnery, sculpture, musical instruments, panelling, flooring veneer etc[356 , 848 , 904 ].

Special Uses

Nitrogen Fixer

References   More on Other Uses

Cultivation details

This species has a symbiotic relationship with certain soil bacteria; these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[755 ]. The hollow internodes on the branches are inhabited by ants[904 ].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:



The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).

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Plant Propagation


Other Names

If available other names are mentioned here

Macacauba, Macawood, Hormigo, Orange Agate

Brazil; Bolivia, Plurinational State of; Venezuela, Bolivarian Republic of; Guyana; French Guiana; Suriname; Trinidad and Tobago

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Platymiscium uleiMacacauba, Macawood, Hormigo, Orange AgateTree25.0 10-12 MLMHNM004

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.


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Botanical References

Links / References

For a list of references used on this page please go here
A special thanks to Ken Fern for some of the information used on this page.

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