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Juglans olanchana - Standl. & L.O.Williams

Common Name Olancho walnut, Central American walnut
Family Juglandaceae
USDA hardiness 10-12
Known Hazards None known
Habitats Mountain sides, river bottoms, along water courses, cafetales, at elevations from 500 - 1,500 metres in Guatemala[331 ].
Range Central America - Costa Rica to Mexico.
Edibility Rating    (2 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care
Tender Moist Soil Wet Soil Semi-shade Full sun
Juglans olanchana Olancho walnut, Central American walnut


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Juglans olanchana Olancho walnut, Central American walnut
wikimedia.org David J. Stang

 

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Summary


Physical Characteristics

 icon of manicon of lolypop
Juglans olanchana is a deciduous Tree growing to 45 m (147ft) by 35 m (114ft) at a medium rate.
It is hardy to zone (UK) 10.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist or wet soil.

UK Hardiness Map US Hardiness Map

Synonyms

Juglans guatemalensis W.E.Manning

Habitats

Edible Uses

Seed - raw or cooked[331 ]. The shells are 34 - 45mm in diameter and 32 - 42mm long[595 ].

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.


None known

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Other Uses

The husk of the fruit is used as a source of tannins[331 ]. The wood is used for making fancy furniture[331 ]. We do not have any more information for this species, but the general description for the wood of the tropical members of this genus is as follows:- The heartwood is chocolate-brown and generally darker than the North American black walnut (Juglans nigra), sometimes with a purplish cast; it is sharply demarcated from the whitish sapwood. The texture is rather coarse; the grain is straight to irregular; luster is high; odour and taste are mild but distinctive. The wood dries very slowly, wet zones persist, and severe honeycombing and collapse may occur in stock thicker than 10cm x 10cm. The wood works well, cutting cleanly with hand and machine tools and taking an excellent finish. It also peels and slices readily but the veneers are also reported to dry slowly. It is used for decorative veneers, furniture, cabinet work, interior finish, and other applications similar to the North American black walnut[316 ].

Cultivation details

Management: Standard  Regional Crop  Staple Crop: Protein-oil

A tree mainly found at medium elevations in the tropics, most commonly between 400 - 1,600 metres, though there is one report of a specimen collected near sea level in Nicaragua. It grows in areas of good rainfall.

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Propagation

Seed

Other Names

If available other names are mentioned here

Cedro negro (Spanish for Black Cedar due to its close appearance to West Indian cedar) or nogal (Spanish for walnut).

Found In

Countries where the plant has been found are listed here if the information is available

Belize, Central America, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, North America, Panama, South America

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 : Status: Endangered C2a

Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Juglans ailanthifoliaJapanese Walnut31
Juglans ailanthifolia cordiformisHeartseed Walnut41
Juglans californicaCalifornia Walnut, Southern California walnut21
Juglans cathayensisChinese Walnut30
Juglans cinereaButternut - White Walnut, Butternut33
Juglans hindsiiHind's Black Walnut, Northern California walnut, Paradox hybrid walnut30
Juglans intermediaHind's Black Walnut, Northern California walnut, Paradox hybrid walnuH30
Juglans majorArizona Walnut20
Juglans mandschuricaManchurian Walnut31
Juglans microcarpaTexas Walnut, Little walnut, Stewart's little walnut20
Juglans neotropicaAndean Walnut32
Juglans nigraBlack Walnut33
Juglans regiaWalnut, English walnut, Persian Walnut,43
Juglans regia fallaxWalnut30
Juglans regia kamaoniaWalnut33
Juglans sinensis 31
Juglans x bisbyiBuartnut30

 

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Standl. & L.O.Williams

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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