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Couma utilis - (Mart.) M?ll.Arg.
Common Name Sorva, Milk Tree
Family Apocynaceae
USDA hardiness 10-12
Known Hazards None known
Habitats Dense forest of virgin bushes, on flooded or dry land[ 418 ]. Often grows in dry non-flood zones, in or near fields and grasslands[ 377 ].
Range S. America - lowland Amazonia in Brazil, Colombia and Venezuela.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Tender Moist Soil Semi-shade Full sun

Other common names are milk tree and couma. Sorva, Couma utilis, is a medium-sized tropical tree in South America that reaches up to 17 m in height with trunk diameter of up to 20 cm upon maturity. The leaves are simple and opposite or alternate in arrangement. The latex from the tree is used in the treatment of diarrhoea, worms, parasites, and skin irritations. It is also used to flavour drinks, caulking boats, and for varnishes, ceramics, glues, etc. The fruit is eaten raw. It is small, round, and has a fleshy sweet pulp. The wood is used in making cabinets, in carpentry and general construction. It is also grown as an ornamental. Amazon, Brazil, Colombia, Peru, South America, Venezuela. Also known as: Sorvinha, Sorva-miuda, Sorva-pequena, Cuma, Sowa, Sorva, Couba.

Couma utilis Sorva, Milk Tree

Couma utilis Sorva, Milk Tree
Physical Characteristics
 icon of manicon of cone
Couma utilis is an evergreen Tree growing to 12 m (39ft) by 10 m (32ft) at a medium rate.
It is hardy to zone (UK) 10. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in very acid soils.
It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Collophora utilis Mart. Couma dulcis Spruce ex M?ll.Arg. Couma multinervis Monach.

Edible Uses
Fruit - raw[ 317 ]. Small and round, looking somewhat like a guava, with an edible sweet, fleshy pulp[ 377 , 420 ]. The flavour is like a mangaba (Hancornia speciosa) with a hint of sapodilla (Manilkara zapota)[ 418 ]. The brown, globose fruit is about 4cm in diameter[ 420 ]. The latex obtained from the tree has a sweet flavour[ 418 ]. It is used as a chewing gum and also to flavour drinks[ 377 ].
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 latex obtained from the tree is anthelmintic and antiseptic[ 418 ]. It is eaten to treat diarrhoea, worms and parasites[ 377 , 418 , 739 ]. The latex is applied externally to treat skin irritations[ 418 ].
Other Uses
Other Uses: A latex is obtained from tapping the tree[ 317 , 377 ]. Used traditionally for caulking boats[ 317 ]. It is used for a variety of industrial purposes, including varnishes, for ceramics, glues etc[ 317 , 377 ]. The wood is fine-textured, straight-grained, moderately heavy, with moderate mechanical properties and of very low durability. It is used in cabinet-making, carpentry and general construction[ 420 ].
Cultivation details
Industrial Crop: Hydrocarbon;  Management: Hay;  Regional Crop.

A tree of the moist, tropical lowlands where it is found at elevations up to 500 metres[[ 418 ]. It grows best in areas where the temperature ranges from 20 - 30?c, but is able to tolerate a range from 15 - 35?c[ 418 ]. It prefers a mean annual rainfall of 2,000 - 4,000mm, but tolerates from 1,500 - 5,000mm, and is found in areas with a distinct dry season as well as areas of all year round rainfall[ 418 ]. Succeeds in full sun or dappled shade[ 420 ]. Grows wild on white sand soils[ 418 ]. Prefers a pH in the range 4.5 - 6, tolerating from 4 - 6.5[ 418 ]. Established plants are drought tolerant[ 420 ]. Trees have a moderate rate of growth[ 420 ].
Seed - best sown as soon as it is ripe in a lightly shaded position in a nursery seedbed[[ 420 ]. A high germination rate can be expected, with the seeds sprouting within 20 - 40 days[ 420 ]. Transplant the seedlings into individual containers when 4 - 6cm tall, and plant out 5 - 6 months later[ 420 ].
Other Names
Other common names are milk tree and couma. Also known as: Sorvinha, Sorva-miuda, Sorva-pequena, Cuma, Sowa, Sorva, Couba.
Found In
Amazon, Brazil, Colombia, Peru, South America, Venezuela.
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.

None Known
Conservation Status
IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Couma macrocarpaBarca, Milk Tree, Couba, Sorva, Sorva grande42


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(Mart.) M?ll.Arg.
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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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