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Useful Tropical Plants

Rhodognaphalon schumannianum

A.Robyns

Malvaceae

+ Synonyms

Bombax mossambicense A.Robyns

Bombax rhodognaphalon K.Schum.

Bombax stolzii Ulbr.

Rhodognaphalon mossambicense (A.Robyns) A.Robyns

Rhodognaphalon stolzii (Ulbr.) A.Robyns

Rhodognaphalon tanganyikense A.Robyns

Common Name:

Rhodognaphalon schumannianum
Cultivated young tree in the Koko Crater Botanical Garden, Oahu, Hawaii. If you look carefully, there are some mature, banana-shaped seedpods amongst the leaves
Photograph by: Drew Avery
Creative Commons License
Rhodognaphalon schumannianum Rhodognaphalon schumannianum

General Information

Rhodognaphalon schumannianum is a deciduous tree with a medium crown; it can grow up to 40 metres tall. The straight, cylindrical bole can be free of branches for up to 21 metres; it is up to 150 cm in diameter, with buttresses up to 3 metres high[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
].
The tree is harvested from the wild for local use, mainly as a source of fibre, medicine and edible seeds. The seeds are sometimes sold in local markets[
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
]. The tree is sometimes cultivated for food etc, and is also planted to provive shade and as an avenue tree[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
,
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
]. The wood is used locally and also traded.
It is unclear as to what extent this species is threatened with genetic erosion. It has been recorded as being at low risk/of least concern, but is not included in the IUCN Red List of Endangered Species[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Known Hazards

None known

Botanical References

308
Title
Flora Zambesiaca
Publication
 
Author
 
Website
http://apps.kew.org/efloras/fz/intro.html
Publisher
 
Year
0
ISBN
 
Description
An excellent online flora of plants from the Zambezi River basin. It lists a number of the plant uses as well as the habitats and botanical descriptions of the plants.

Range

East Africa - Kenya, Tanzania, Malawi, Mozambique.

Habitat

Dry lowland forest, riverine forest and coastal thickets at elevations from 600 - 1,100 metres[
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
,
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
].

Properties

Edibility Rating *  *  *
Medicinal Rating *  *
Other Uses Rating *  *  *
HabitDeciduous Tree
Height35.00 m
Cultivation StatusCultivated, Ornamental, Wild

Cultivation Details

A plant of the tropics, where it is found at elevations up to 1,100 metres. The average annual rainfall in its area of distribution is normally not less than 1,000mm[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Initial growth is fairly fast. Three years after sowing, seedlings may be 2 - 3 metres tall[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The seeds are dispersed by wind, but most seeds do not spread further than 100 metres from the tree[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Edible Uses

Seed - cooked[
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
]. They can be roasted and eaten like groundnuts. The roasted seeds can be ground into a powder that is then used for cooking with vegetables or meat[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
].

Medicinal

The bark is astringent. It is a traditional medicine for the treatment of diarrhoea and malaria[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
,
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
].

The roots are used to treat asthma, coughs and diarrhoea[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Ethanol, petroleum ether and ethyl acetate extracts of the root bark have shown in-vitro antimalarial activity[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Other Uses

The seed floss from the fruit has been used for stuffing pillows, cushions and mattresses[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
,
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
].

The inner bark yields a fibre that is used for rope making[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
,
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
].

A red-brown dye is obtained from the bark[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
,
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
].

The heartwood is pale to dark pinkish brown with diffuse dark bands; it is indistinctly demarcated from the sapwood when freshly cut, but on drying the approximately 75mm wide band of sapwood becomes cream-coloured. The grain is straight or interlocked; the texture medium to moderately coarse; black gum ducts are sometimes present. The wood is very light to light in weight; weak; very soft to soft; of low durability and is liable to attacks by sapstain fungi, marine borers and termites. It dries rapidly with some surface checking and distortion, and occasional collapse; once dry it is stable in service. Both the green and dry wood saw easily; the wood works easily with hand and machine tools; it takes nails well, but the holding power is low; gluing is correct; it peels easily; painting, staining and lacquering properties are poor; veneers dry rapidly, with high shrinkage, and tend to be brittle. The wood is locally used for roofing, doors, panelling and cheap plywood for packing cases. The bole is traditionally used for dugout canoes. The wood is suitable for low-grade furniture, sporting goods, matches, hardboard, particle board and wood-wool. It is also suitable for pulping[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
,
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
,
848
Title
Tropix 7
Publication
 
Author
 
Website
http://tropix.cirad.fr/en
Publisher
CIRAD
Year
0
ISBN
 
Description
An on-line guide to the timbers of 245 species of trees.
].
The wood is used for making charcoal[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The wood fibres have an average length of 1.9 mm, with a diameter of 25.4 μm. The chemical composition is: cellulose 50%, pentosans 8%, lignin 35% and ash 1%. The solubility in cold water is 1%, in hot water 2%, in alcohol-benzene 4% and in 1% NaOH 16%. Paper-making experiments in the 1950s resulted in papers with low strength[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Propagation

Seed - sow in a nursery seedbed in partial shade. If sown fresh, the seed normally germinates well, sprouting within 4 - 21 days. Seedlings are planted out when they are about 1 year old and 60 - 120cm tall[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The seed can be stored for about four months but is susceptible to fungal and insect damage[
398
Title
Edible Wild Plants of Tanzania
Publication
 
Author
Ruffo, C.K.: Birnie, A. & Tengnas, B.
Publisher
Regional Land Management Unit; Nairobi.
Year
2002
ISBN
9966-896-60-0
Description
A very well presented, simple guide to growing and utilizing wild food plants in Tanzania, with line drawings of each plant, a description, habitat and range, non-food as well as food uses, plus basic information on growing the plants.
].

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