If you would like to support this site, please consider Donating.
Useful Tropical Plants

Cycas sphaerica

Roxb.

Cycadaceae

+ Synonyms

Cycas circinalis orixensis Haines

Common Name:

No Image.

General Information

Cycas sphaerica is a slow-growing, evergreen palm-like plant with an erect, unbranched main stem that can eventually be around 450cm tall and 25 - 40cm in diameter; this is topped by a crown of large thorny leaves each around 60 - 270cm long[
310
Title
Plant Resources of Southeast Asia
Publication
 
Author
 
Website
http://proseanet.org/
Publisher
 
Year
0
ISBN
 
Description
Lots of information on the uses of the plants of SE Asia.
,
1933
Title
A Taxonomic Revision of the Genera Cycas and Epicycas gen. nov. (Cycadaceae)
Publication
Blumea 43 (1998) 351-400
Author
de Laubenfels D.J. & Adema F.
Publisher
 
Year
1998
ISBN
 
Description
 
].
The plant is harvested from the wild for local use as a food. The leaves are harvested for use as decorations, and are sold in local markets for this purpose[
1938
Title
Traditional food and medicinal uses of Cycas sphaerica Roxb. and Cycas beddomei Dyer (Cycadaceae)
Publication
Species, 2019, 20, 24-27
Author
Solomon Raju AJ. et al
Website
http://www.discoveryjournals.org
Publisher
 
Year
2019
ISBN
2319-5746
Description
 
].
Very little is known about the population size, trends and range of Cycas sphaerica. There is some utilization of the species but it is not known to what extent this is a significant threat. The plant is classified as 'Data Deficient' in the IUCN Red List of Threatened Species(2010)[
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

We have no specific information for this species, but most if not all members of this genus are believed to contain toxins. The two main toxic compounds that have been identified are cycasin and macrozamin. When ingested in sufficient quantities, these compounds are extremely poisonous to humans and many other animals, and have been shown to cause liver damage and cancer. Cycasin and macrozamin have a cumulative effect upon the body and are suspected of causing neurological disorders when ingested in small amounts over long periods of time.
There is a long history of human use of this genus as a starch-rich food, but it should be noted that the plants needed to be treated in various ways in order to remove any toxic principles. Caution should be exercised even with properly prepared foods, since even then regular consumption may lead to severe health problems and death. Since many of these species are becoming increasingly rare in the wild, this is probably a food best left to times of food shortage when other, better foods, are not available[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
,
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

Botanical References

1933
Title
A Taxonomic Revision of the Genera Cycas and Epicycas gen. nov. (Cycadaceae)
Publication
Blumea 43 (1998) 351-400
Author
de Laubenfels D.J. & Adema F.
Publisher
 
Year
1998
ISBN
 
Description
 
,
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.

Range

E. Asia - eastern and southern India

Habitat

Disturbed areas and open forests with substantial rainfall[
1933
Title
A Taxonomic Revision of the Genera Cycas and Epicycas gen. nov. (Cycadaceae)
Publication
Blumea 43 (1998) 351-400
Author
de Laubenfels D.J. & Adema F.
Publisher
 
Year
1998
ISBN
 
Description
 
]. Dry forests and woodlands, generally on the sides of hills and ridges; at elevations from 300 - 1,000 metres[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
].

Properties

Conservation StatusData Deficient
Edibility Rating *
HabitEvergreen Tree
Height4.00 m
Growth RateSlow
PollinatorsInsects
Cultivation StatusWild

Cultivation Details


An almost universal requirement for cycads is a well-drained but moisture-retentive soil, and by far the best soils are sandy gravels and light loams which provide the required drainage and aeration necessary for good growth. Cycads will generally not grow well in clay soils unless those soils are heavily amended with sand and organic matter[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
]. A neutral soil (pH 7), is generally best for most species of cycads and allows the proper absorption of nutrients. A slightly acid soil is better for most cycads than a basic one[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
].
Species in this genus can usually be transplanted easily even when quite large. The best time for moving them is just before the beginning of a new growing season, the roots being trimmed if they are damaged and perhaps some leaves being removed. New roots should develop quickly as the season progresses[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
].
Species in this genus form structures known as coralloid roots. These roots branch off from the taproot or secondary roots and are distinctive in that they grow laterally or upward, forming a nodular mass at the apex. These coralloid roots occur slightly below or slightly above the soil surface and generally contain cyanobacteria, also known as blue-green algae. These are able to fix atmospheric nitrogen and make it available as a nutrient to the plant. The ability to extract this important nutrient from the air explains how many cycad species are able to survive on almost sterile soils[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
].
A dioecious species, with individual plants producing either all male or all female cones. Therefore both male and female forms of the plant need to be grown if seed is required[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
]. On very rare occasions, usually when a plant has been under severe stress, it can change sex and produce either all female or all male cones[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
].

Edible Uses

Species in this genus are generally toxic unless the food is prepared correctly. See notes above on toxicity.

The pith from the stem is used to make sago[
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.
]. The starch-rich pith is used to make a 'sago flour', which is used for making dosas[
1938
Title
Traditional food and medicinal uses of Cycas sphaerica Roxb. and Cycas beddomei Dyer (Cycadaceae)
Publication
Species, 2019, 20, 24-27
Author
Solomon Raju AJ. et al
Website
http://www.discoveryjournals.org
Publisher
 
Year
2019
ISBN
2319-5746
Description
 
].

The seeds are used for food.[
1938
Title
Traditional food and medicinal uses of Cycas sphaerica Roxb. and Cycas beddomei Dyer (Cycadaceae)
Publication
Species, 2019, 20, 24-27
Author
Solomon Raju AJ. et al
Website
http://www.discoveryjournals.org
Publisher
 
Year
2019
ISBN
2319-5746
Description
 
]. The seeds are dried then ground into a flour[
1938
Title
Traditional food and medicinal uses of Cycas sphaerica Roxb. and Cycas beddomei Dyer (Cycadaceae)
Publication
Species, 2019, 20, 24-27
Author
Solomon Raju AJ. et al
Website
http://www.discoveryjournals.org
Publisher
 
Year
2019
ISBN
2319-5746
Description
 
]. The globose seeds are around 25 - 30mm in diameter[
1933
Title
A Taxonomic Revision of the Genera Cycas and Epicycas gen. nov. (Cycadaceae)
Publication
Blumea 43 (1998) 351-400
Author
de Laubenfels D.J. & Adema F.
Publisher
 
Year
1998
ISBN
 
Description
 
].

Young leaves - used as a leafy vegetable[
1938
Title
Traditional food and medicinal uses of Cycas sphaerica Roxb. and Cycas beddomei Dyer (Cycadaceae)
Publication
Species, 2019, 20, 24-27
Author
Solomon Raju AJ. et al
Website
http://www.discoveryjournals.org
Publisher
 
Year
2019
ISBN
2319-5746
Description
 
]. Harvested as they are formed, the main rib is removed and the leaves are cut into small pieces. They are then thoroughly washed in water and placed in a container with fresh water and cooked for about half-an hour before discarding the water. The leaf pieces can now be cooked with other vegetables in curries etc[
1938
Title
Traditional food and medicinal uses of Cycas sphaerica Roxb. and Cycas beddomei Dyer (Cycadaceae)
Publication
Species, 2019, 20, 24-27
Author
Solomon Raju AJ. et al
Website
http://www.discoveryjournals.org
Publisher
 
Year
2019
ISBN
2319-5746
Description
 
].

We hve no further information for this species, but Cycad in generals have often been used traditionally as a source of food starch, obtained either from the seeds or from the stems, and it is probable that the seed kernels and stem pith of all cycads can be used as food after treatment to remove any toxic principle that may be present (See notes above on toxicity). The starch would appear to be of particular importance as a source of sustenance during hard times or in areas where the food supply is naturally limited[
1934
Title
Economic Botany of the Cycads
Publication
Econ Bot 12, 3-41 (1958)
Author
Thieret J.W.
Website
https://doi.org/10.1007/BF02863122
Publisher
 
Year
1958
ISBN
 
Description
 
].

Medicinal

None known

Other Uses

Male cones produce a strong odour that is detectable at least 500 metres away from the plant. These cones are kept in houses to prevent mosquito bites; the volatile chemicals responsible for the emission of strong odour appear to have repellant action against mosquitoes[
1938
Title
Traditional food and medicinal uses of Cycas sphaerica Roxb. and Cycas beddomei Dyer (Cycadaceae)
Publication
Species, 2019, 20, 24-27
Author
Solomon Raju AJ. et al
Website
http://www.discoveryjournals.org
Publisher
 
Year
2019
ISBN
2319-5746
Description
 
].

Propagation

Seeds - best sown as soon as they are ripe, though the seeds of many species will take a few months to finish maturing the embryo before they are ready to germinate. Sow the seeds in a tray in a freely-draining medium and place in moderate shade. Bottom heat at about 27°c will hasten seed germination dramatically. Young roots are quite brittle and once germination takes place, the root grows rapidly. It is important to pot up the seedlings at this time in order to give them enough root-space. Grow on the plants in pots until large enough to plant out[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
].
Division of off-sets or suckers is best carried out just before the plant comes in to new growth at the start of the growing season[
1935
Title
The Cycads
Publication
 
Author
Whitelock L.M.
Publisher
Timber Press; Portland, Oregon
Year
2002
ISBN
0-88192-522-5
Description
An excellent book dealing with the eleven different genera and almost 300 species of plants we know as Cycads. There are detailed descriptions and a host of other information for each species.
].
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2024-05-27. <tropical.theferns.info/viewtropical.php?id=Cycas+sphaerica>

Add a Comment:

If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.