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Useful Tropical Plants

Commelina coelestis

Willd.

Commelinaceae

+ Synonyms

Commelina dubia Kunth

Commelina hirsute (Wight) C.B.Clarke

Commelina intermedia Schltdl.

Commelina japonica Kunth

Commelina longicaulis Kunth

Commelina nilagirica Steud. ex C.B.Clarke

Commelina paniculata Kunth

Heterocarpus hirsutus Wight

Common Name: Blue Spider Wort

Commelina coelestis
Close-up of the flower
Photograph by: Not known
Creative Commons Attribution-Share Alike 3.0

General Information

Blue spider wort is a perennial plant growing from a dense cluster of elongate fleshy-thickened roots[
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/
]. It can grow from 40 - 70cm tall[
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/
].
Sometimes harvested from the wild for its edible root, it is often grown as an ornamental in gardens[
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.
].

Known Hazards

None known

Botanical References

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.
,
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/

Range

C. America - El Salvador, Honduras, Guatemala to northern Mexico.

Habitat

Moist fields or meadows or open forest, often in pine-oak forest or with Juniperus at elevations of 900 - 3,500 metres in Guatemala[
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/
].

Properties

Edibility Rating *  *
HabitPerennial
Height0.45 m
Cultivation StatusOrnamental, Wild

Cultivation Details

A plant of medium to high elevations in the tropics[
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/
].
Prefers a light well-drained loam with added leafmold and a warm sunny position[
42
Title
Hardy Bulbs.
Publication
 
Author
Grey. C. H.
Publisher
Williams & Norgate.
Year
1938
ISBN
-
Description
Rather dated now, but an immense work on bulbs for temperate zones and how to grow them. Three large volumes.
,
111
Title
Popular Hardy Perennials.
Publication
 
Author
Sanders. T. W.
Publisher
Collingridge
Year
1926
ISBN
-
Description
A fairly wide range of perennial plants that can be grown in Britain and how to grow them.
,
190
Title
The Dry Garden.
Publication
 
Author
Chatto. B.
Publisher
Dent
Year
1982
ISBN
0460045512
Description
A good list of drought resistant plants with details on how to grow them.
]. Established plants are drought tolerant[
190
Title
The Dry Garden.
Publication
 
Author
Chatto. B.
Publisher
Dent
Year
1982
ISBN
0460045512
Description
A good list of drought resistant plants with details on how to grow them.
], though they die back to the roots in periods of drought[
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/
].
A very ornamental plant[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
].
This plant is very attractive to slugs[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

Edible Uses

Tubers - cooked[
2
Title
Sturtevant's Edible Plants of the World.
Publication
 
Author
Hedrick. U. P.
Publisher
Dover Publications
Year
1972
ISBN
0-486-20459-6
Description
Lots of entries, quite a lot of information in most entries and references.
]. Starchy[
105
Title
Tanaka's Cyclopedia of Edible Plants of the World.
Publication
 
Author
Tanaka. T. & Nakao S.
Publisher
Keigaku Publishing; Tokyo
Year
1976
ISBN
-
Description
The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
]. The plant forms a clump of thin finger-shaped roots about 7 - 10cm long. These are easily harvested, though overall yields are low. The roots have a fairly bland flavour and an acceptable texture[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. By no means a favourite root crop, but acceptable in small quantities[
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

None known

Other Uses

None known

Propagation

Seed - sow March in a greenhouse. The seed usually germinates in 4 - 5 weeks at 20°c[
164
Title
Growing from Seed. Volume 4.
Publication
 
Author
Bird. R. (Editor)
Publisher
Thompson and Morgan.
Year
1990
ISBN
-
Description
Very readable magazine with lots of information on propagation. A good article on Yuccas, one on Sagebrush (Artemesia spp) and another on Chaerophyllum bulbosum.
]. Prick the seedlings out into individual pots as soon as they are large enough to handle and plant out in late spring or early summer after the last expected frosts.
Division in early spring. The root clump consists of a number of finger-shaped roots joined together at their tops. When dividing this, it is important to ensure that each division has at least one growing bud at the top[
111
Title
Popular Hardy Perennials.
Publication
 
Author
Sanders. T. W.
Publisher
Collingridge
Year
1926
ISBN
-
Description
A fairly wide range of perennial plants that can be grown in Britain and how to grow them.
,
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. Pot up the divisions and grow them on in a greenhouse or cold frame until they are established and then plant them out in late spring, after the last expected frosts[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Cuttings during the growing season. These root very easily[
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.
].
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2019-09-20. <tropical.theferns.info/viewtropical.php?id=Commelina+coelestis>

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