Dimorphotheca pluvialis
(L.)Moench.
Asteraceae
The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.
Common Name: Weather Prophet
General Information
Dimorphotheca pluvialis is an annual plant that can grow up to 0.40 metres tall.
It is harvested from the wild for local use as a source of materials.
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.
Range
Africa - South Africa, Namibia.
Habitat
Not known
Properties
Habit | Annual |
Height | 0.40 m |
Pollinators | Insects |
Cultivation Status | Wild |
Cultivation Details
Prefers a dry, sunny position in a well drained soil rich in organic matter[
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.
].
Plants are not frost-resistant and are grown as summer annuals in temperate zones[
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.
].
A very ornamental plant, often grown as summer bedding[
289- Title
- The National Non-Food Crops Centre Crop Database
- Publication
-
- Author
-
- Website
- http://www.nnfcc.co.uk/crops/pd.cfm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
].
The flowers of this sun loving daisy only open with the warmth of the sun from about 10 o’clock in morning to 4 o’clock in the afternoon. As the sun moves across the sky their flowers follow, always facing the sun[
295- Title
- PlantZAfrica.com
- Publication
-
- Author
-
- Website
- http://www.plantzafrica.com
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent site giving detailed descriptions and uses of many S. African plants.
].
The seeds of this plant are interesting in that two different forms are produced[
295- Title
- PlantZAfrica.com
- Publication
-
- Author
-
- Website
- http://www.plantzafrica.com
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent site giving detailed descriptions and uses of many S. African plants.
]. The ones usually sown are flat, papery and fly away easily in the wind. They are formed in the center of the flower by the disk florets[
295- Title
- PlantZAfrica.com
- Publication
-
- Author
-
- Website
- http://www.plantzafrica.com
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent site giving detailed descriptions and uses of many S. African plants.
]. The outer ray florets form seeds which looks like little thorns with thick coats[
295- Title
- PlantZAfrica.com
- Publication
-
- Author
-
- Website
- http://www.plantzafrica.com
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent site giving detailed descriptions and uses of many S. African plants.
]. Under favorable conditions the papery seed of the disk florets germinate in abundance, while the seeds of the ray florets have delayed germination to protect the species against unpredictable conditions in their arid environmen[
295- Title
- PlantZAfrica.com
- Publication
-
- Author
-
- Website
- http://www.plantzafrica.com
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent site giving detailed descriptions and uses of many S. African plants.
].
This plant is being investigated in several maritime countries of Europe as a possible source of oil for industrial uses[
289- Title
- The National Non-Food Crops Centre Crop Database
- Publication
-
- Author
-
- Website
- http://www.nnfcc.co.uk/crops/pd.cfm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
]. Yields in field trials range from 0.5 - 1.5 t/ha, potential maximum yields are 2 - 2.5 t/ha[
289- Title
- The National Non-Food Crops Centre Crop Database
- Publication
-
- Author
-
- Website
- http://www.nnfcc.co.uk/crops/pd.cfm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
].
Edible Uses
None known
Medicinal
None known
Other Uses
The seeds contain 60 - 65% dimorphecolic acid (d9-hydroxy,t10,t12-octadecadienoic acid)(the winged seeds contain a higher proportion of the oil)[
289- Title
- The National Non-Food Crops Centre Crop Database
- Publication
-
- Author
-
- Website
- http://www.nnfcc.co.uk/crops/pd.cfm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
]. This is an unusually linked hydroxy fatty acid in that it has two conjugated double bonds. The structure of the fatty acid provides it with unique properties that are totally different from other known hydroxy fatty acids (eg ricinoleic and lesquerolic). Its structure also makes it much more highly reactive than many other fatty acids and therefore potentially suited to a wide range of industrial products, for example in the manufacture of urethane resins, paints, varnishes, lubricants and cosmetics[
289- Title
- The National Non-Food Crops Centre Crop Database
- Publication
-
- Author
-
- Website
- http://www.nnfcc.co.uk/crops/pd.cfm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
]. The enhanced reactivity of dimorphecolic acid necessitates great care in extraction and processing to minimise undesirable reactions[
289- Title
- The National Non-Food Crops Centre Crop Database
- Publication
-
- Author
-
- Website
- http://www.nnfcc.co.uk/crops/pd.cfm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
].
Propagation
Seed - for the earliest crops, sow in pots in early spring in a greenhouse using a freely-draining potting compost[
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.
]. Seed takes about 3 weeks to germinate at 16°c[
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.
]. Be careful not to overwater at any time since the young plants are prone to damping off[
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.
]. Prick out the seedlings into individual pots as soon as the plants are large enough to handle and plant out in their permanent positions as soon as possible after the last expected frosts.
Seed can also be sown in situ in late spring[
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.
].
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