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Useful Temperate Plants

Salix humboldtiana

Willd.

Salicaceae


The genus Salix, as recognised in 2019, is comprised of probably more than 300 distinct species (over 500 if you also accept hybrid species). Many of these species are very similar, sometimes being separated as much by native range as by any other characteristic. Hybridization between species is common, when this is coupled with the high genetic and morphological variability within many species, and different levels of ploidy, the complexity of this genus is clear.
Misidentification of specimens is not rare, even amongst botanists, and many records of plant use will often equally apply to one or more related species that were not seen as distinct when the report was made. Equally, several species not included in the database will be found to have a range of these uses. In general, all species in the genus have medicinal uses, especially as antiinflammatories, analgesics and febrifuges, they can all serve as emergency foods, many of them have flexible stems and can be used in basket making, and many of them can be planted in moist to wet conditions in order to stabilize the soil and improve wildlife habitats.

+ Synonyms

Pleiarina humboldtiana (Willd.) Raf.

Salix chilensis Moldenke

Salix chilensis Molina

Salix magellanica Poir.

Salix stipulacea M.Martens & Galeotti

Common Name: Sauce

Salix humboldtiana
Flowering plant in native habitat
Photograph by: Pato Novoa
Creative Commons License
Salix humboldtiana Salix humboldtiana Salix humboldtiana Salix humboldtiana Salix humboldtiana Salix humboldtiana Salix humboldtiana

General Information

Salix humboldtiana is a deciduous to semi-evergreen tree with a broad, open canopy and pendulous branches, growing from 12 - 20 metres tall. The bole is 40 - 60cm in diameter, and can be unbranched for the first 12 metres[
331
Title
Flora of Guatemala
Publication
 
Author
Standley P.C. & J. A. Steyermark
Website
http://www.archive.org/
Publisher
 
Year
1946 - 1976
ISBN
 
Description
A superb reference, though somewhat dated. Gives lots of plant uses as well as information on plant habit and habitat. The entire flora (13 volumes) can now be downloaded from http://www.archive.org/
,
341
Title
South American Timbers: the Properties, Uses and Characteristics of 190 Species.
Publication
 
Author
Bolza. E. & Christensen. F.J.
Publisher
Commonwealth Scientific and Industrial Research Organization
Year
1979
ISBN
0 643 02582 0
Description
A very useful guide.
,
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].
The tree is a popular source of material for basket making. It also has local uses as a medicine and low-quality timber. Planted as a pioneer species in reforestation projects, as a hedge and to provide basket-making material, it is also an ornamental tree, used in landscaping projects[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
]. It is cultivated in Costa Rica and Panama for the use of its rods in basketwork or for living fences (Cuba)[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
].
Salix humboldtiana has a wide native range, across its distribution the species is fairly abundant and it is assumed to have a large population. There are no threats reported for the species. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].
This species is cultivated both in and outside its natural range. It has escaped from cultivation and is becoming naturalised within some parts of Australia where it is considered a weed[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Known Hazards

None known

Botanical References

1207
Title
Flora del Valle de Tehuacán-Cuicatlán
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org/bibliography/118975#/summary
Publisher
Universidad Nacional Autónoma de México
Year
1993 - 2015
ISBN
968-36-3108-8
Description
An excellent flora (in Spanish) of the Tehuacán-Cuicatlán biosphere reserve in southeastern Mexico. It can be downloaded from the Internet
,
1212
Title
New Trees
Publication
 
Author
Grimshaw J.; Bayton R.; Wilks H.
Publisher
Kew Publishing; London
Year
2009
ISBN
1842461737
Description
Provides comprehensive botanical descriptions and horticultural commentary on over 800 tree species that have been introduced to cultivation in recent decades.

Range

S. America - Argentina, Chile, Brazil, Bolivia, Peru, Ecuador, Colombia, through Central America to Mexico.

Habitat

Gallery forest, tropical deciduous forest, usually in secondary formations, but always in places where the soil is moist by rivers etc; at elevations from 825 - 1,485 metres[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
,
1207
Title
Flora del Valle de Tehuacán-Cuicatlán
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org/bibliography/118975#/summary
Publisher
Universidad Nacional Autónoma de México
Year
1993 - 2015
ISBN
968-36-3108-8
Description
An excellent flora (in Spanish) of the Tehuacán-Cuicatlán biosphere reserve in southeastern Mexico. It can be downloaded from the Internet
].

Properties

Weed PotentialYes
Conservation StatusLeast Concern
Medicinal Rating *  *
Other Uses Rating *  *  *
HabitSemi-deciduous Tree
Height15.00 m
Growth RateFast
PollinatorsInsects, Wind
Cultivation StatusCultivated, Ornamental, Wild

Cultivation Details

Salix humboldtiana has a very wide natural range from southern S. America to northern Mexico with a climate varying from temperate to tropical. It is usually found at higher elevations in the tropics, generally up to 2,000 metres[
369
Title
Flora of Costa Rica
Publication
 
Author
Standley P.C.
Website
http://www.archive.org/
Publisher
Field Museum of Natural History; Chicago
Year
1938
ISBN
 
Description
Rather dated, but an excellent treatment of the area. Available for download from the internet.
]. The plant is not very cold-hardy, being able to tolerate short periods with temperatures falling to around -5°c.
Requires a sunny position[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
]. The plant is able to tolerate long periods with the soil inundated, in some areas it can be up to seven months with submerged roots[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].
Young plants establish well and grow away quickly[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].
The flowers are dioecious, male and female flowers being produced on separate plants. If seed is required then at least one plant of each sex need to be growing in reasonable proximity[
11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
].
Hybridization in the genus is common, especially when species are brought together in cultivation[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Salix species are unusual in as much as, although they produce their flowers in catkins, these are insect rather than wind pollinated. Indeed, the flowers of many species are excellent sources of nectar for bees and other insects, especially valuable are those species that flower early in the growing season[
11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
].
The roots of Salix species are often vigorous and extensive and can range some distance from the plant. Several species are known to cause problems by growing into drains and drainage systems as their roots seek out moisture[
11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
].
Species in this genus are often notably susceptible to honey fungus[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Edible Uses

Growing in harsh and difficult environments, as many willows do (they can be found within the arctic circle, on mountains and even in the desert), Salix species have often been utilized as an emergency food source. They are, indeed, often a highly favoured food source for birds and mammals and, whilst few species would lay claim to culinary excellence for humans, the young shoots and inner bark are both edible eaten either raw or cooked[
172
Title
Discovering Wild Plants - Alaska, W. Canada and the Northwest.
Publication
 
Author
Schofield. J. J.
Publisher
Alaska Northwest Books; Alaska
Year
2003
ISBN
0882403699
Description
A nice guide to some useful plants in that area.
].
We have no specific information for this species, but the inner bark can be eaten fresh or it can be dried, ground into a powder and then added to cereal flour for use in making bread etc. It has a very bitter flavour, The young shoots are also somewhat bitter and not very appetizing - unless you are really hungry of course![
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

Medicinal

The bark has been used medicinally[
369
Title
Flora of Costa Rica
Publication
 
Author
Standley P.C.
Website
http://www.archive.org/
Publisher
Field Museum of Natural History; Chicago
Year
1938
ISBN
 
Description
Rather dated, but an excellent treatment of the area. Available for download from the internet.
].

The bark, twigs, leaves, leaf buds, and flower buds of all Salix species contain phenolic glycosides, particularly salicin and salicortin (which breaks down when the plant material is damaged to produce salicin). The quantity of these compounds can vary greatly between species, and even within geographical races of the same species. Taste is a simple test to ascertain levels of these compounds - the more bitter the flavour, the more compounds it contains[
407
Title
BoDD (Botanical Dermatology Database)
Publication
 
Author
 
Website
http://bodd.cf.ac.uk/
Publisher
 
Year
0
ISBN
 
Description
Brief notes on a very wide range of plants that have reports of causing harm to the skin.
].
Salicin has several valuable medicinal properties. In particular it is an effective antiinflammatory and pain reliever, and is also a valuable febrifuge[
407
Title
BoDD (Botanical Dermatology Database)
Publication
 
Author
 
Website
http://bodd.cf.ac.uk/
Publisher
 
Year
0
ISBN
 
Description
Brief notes on a very wide range of plants that have reports of causing harm to the skin.
].
Modern medicine has used salicin as a pathway to producing the common pain reliever aspirin and, until a totally synthetic pathway of producing the medicine was discovered, several Salix species were harvested on a commercial basis to obtain salicin.
Many Salix species have a history of traditional use (not always documented). All parts of the plant can be used, but the bark is more commonly employed. Their pain-relieving and antiinflammatory properties make them useful in the treatment of verious conditions including headaches, neuralgia and joint pains, whilst they can also be very helpful in the treatment of fevers[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
,
407
Title
BoDD (Botanical Dermatology Database)
Publication
 
Author
 
Website
http://bodd.cf.ac.uk/
Publisher
 
Year
0
ISBN
 
Description
Brief notes on a very wide range of plants that have reports of causing harm to the skin.
].

Agroforestry Uses:

A pioneer species, able to rapidly invade open areas and create conditions suitable for other tree species to become established. It is adapted to humid soils[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
,
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].
It is often planted along streams and irrigation ditches in order to prevent erosion[
341
Title
South American Timbers: the Properties, Uses and Characteristics of 190 Species.
Publication
 
Author
Bolza. E. & Christensen. F.J.
Publisher
Commonwealth Scientific and Industrial Research Organization
Year
1979
ISBN
0 643 02582 0
Description
A very useful guide.
].
It is one of the most frequently cultivated shade-providing trees of the Andes[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
].
Because even large stems root easily, the tree has been used as a living fence[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
].

Other Uses

The slender branches are flexible and tough. They are widely used in basketry, to make wicker furniture etc[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
331
Title
Flora of Guatemala
Publication
 
Author
Standley P.C. & J. A. Steyermark
Website
http://www.archive.org/
Publisher
 
Year
1946 - 1976
ISBN
 
Description
A superb reference, though somewhat dated. Gives lots of plant uses as well as information on plant habit and habitat. The entire flora (13 volumes) can now be downloaded from http://www.archive.org/
,
369
Title
Flora of Costa Rica
Publication
 
Author
Standley P.C.
Website
http://www.archive.org/
Publisher
Field Museum of Natural History; Chicago
Year
1938
ISBN
 
Description
Rather dated, but an excellent treatment of the area. Available for download from the internet.
].

The bark is rich in tannin[
341
Title
South American Timbers: the Properties, Uses and Characteristics of 190 Species.
Publication
 
Author
Bolza. E. & Christensen. F.J.
Publisher
Commonwealth Scientific and Industrial Research Organization
Year
1979
ISBN
0 643 02582 0
Description
A very useful guide.
]

The heartwood is pnkish or dark brown, it is not very distinct from the white sapwood[
331
Title
Flora of Guatemala
Publication
 
Author
Standley P.C. & J. A. Steyermark
Website
http://www.archive.org/
Publisher
 
Year
1946 - 1976
ISBN
 
Description
A superb reference, though somewhat dated. Gives lots of plant uses as well as information on plant habit and habitat. The entire flora (13 volumes) can now be downloaded from http://www.archive.org/
,
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
]. The wood is moderately lustrous; the grain normally straight; the texture fine and even[
341
Title
South American Timbers: the Properties, Uses and Characteristics of 190 Species.
Publication
 
Author
Bolza. E. & Christensen. F.J.
Publisher
Commonwealth Scientific and Industrial Research Organization
Year
1979
ISBN
0 643 02582 0
Description
A very useful guide.
]. It is light in weight, soft, of low resistance to rot when exposed, and very prone to marine borer, termite and blue stain attack[
341
Title
South American Timbers: the Properties, Uses and Characteristics of 190 Species.
Publication
 
Author
Bolza. E. & Christensen. F.J.
Publisher
Commonwealth Scientific and Industrial Research Organization
Year
1979
ISBN
0 643 02582 0
Description
A very useful guide.
,
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
]. It works very easily with most hand and machine tools; finishes smoothly if sharp cutters are used; glues and nails satisfactorily[
341
Title
South American Timbers: the Properties, Uses and Characteristics of 190 Species.
Publication
 
Author
Bolza. E. & Christensen. F.J.
Publisher
Commonwealth Scientific and Industrial Research Organization
Year
1979
ISBN
0 643 02582 0
Description
A very useful guide.
]. It is used for internal work, boxes, rural buildings, paper pulp etc[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].
The wood can be used as a fuel[
369
Title
Flora of Costa Rica
Publication
 
Author
Standley P.C.
Website
http://www.archive.org/
Publisher
Field Museum of Natural History; Chicago
Year
1938
ISBN
 
Description
Rather dated, but an excellent treatment of the area. Available for download from the internet.
]. It makes a good firewood[
341
Title
South American Timbers: the Properties, Uses and Characteristics of 190 Species.
Publication
 
Author
Bolza. E. & Christensen. F.J.
Publisher
Commonwealth Scientific and Industrial Research Organization
Year
1979
ISBN
0 643 02582 0
Description
A very useful guide.
].

Propagation

Willow seed is very small and light, and has a very short viability, perhaps as little as a few days in some species. It must be surface sown as soon as it is ripe. In nature the seed only germinates in disturbed soils in an open situation. In nursery conditions, sow the seed in a tray in a moderately sunny position and keep the soil moist. Germination is usually quite rapid - prick out the seedlings into individual pots when they are large enough to handle and grow on until large enough to plant out. Plants generally establish better if planted out whilst quite small.
Cuttings of mature wood of the current year's growth or older can root at almost any time of the year, though late autumn is considered best as this produces a better balance of root and stem growth the following spring[
1212
Title
New Trees
Publication
 
Author
Grimshaw J.; Bayton R.; Wilks H.
Publisher
Kew Publishing; London
Year
2009
ISBN
1842461737
Description
Provides comprehensive botanical descriptions and horticultural commentary on over 800 tree species that have been introduced to cultivation in recent decades.
]. Plant them in a sheltered outdoor nursery bed or straight into their permanent position and give them a good weed-suppressing mulch. Most species are very easy. Plant into their permanent positions in the following autumn.
Cuttings of half-ripe wood, early to mid summer in a frame. Very easy.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2022-08-15. <temperate.theferns.info/plant/Salix+humboldtiana>

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