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Helianthus annuus 'Earth Walker'
Family Name: | Asteraceae (Compositae) |
Common Name: | Sunflower 'Earth Walker' |
Name
Classifications and Characteristics
Plant Division | Angiosperms (Flowering Seed Plants) (Dicotyledon) |
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Plant Growth Form | Herbaceous Plant |
Lifespan (in Singapore) | Annual |
Mode of Nutrition | Autotrophic |
Plant Shape | Columnar |
Maximum Height | 3 m |
Biogeography
Native Distribution | Of horticultural origin |
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Native Habitat | Terrestrial |
Description and Ethnobotany
Growth Form | Erect herb, 1.5-2.7m tall |
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Foliage | Leaves narrow deltoid, 5-8cm long by 5-6 cm wide, rough hairy. Leaf stalks and main vein of leaves purple. |
Stems | Stem with long white hairs. |
Flowers | Flowers 20 - 25cm across; petals (ray florets) in various shades of orange - chocolate brown, base of petals suffused with a light orange. Centre of flower (disc florets) very dark brown, appearing almost black. This cultivar produces multiple flower heads at a time. |
Fruit | The dry, indehiscent fruit is known as an achene. |
Cultivation | It grows best in fertile, well-drained soil. |
Ethnobotanical Uses | Edible Plant Parts : Edible Seeds |
Landscaping Features
Desirable Plant Features | Ornamental Flowers |
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Landscape Uses | Small Gardens, Container Planting |
Fauna, Pollination and Dispersal
Fauna Pollination Dispersal Associated Fauna | Bird-Attracting |
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Pollination Method(s) | Biotic (Fauna) (Insects (Bee)) |
Seed or Spore Dispersal | Biotic (Fauna) |
Plant Care and Propagation
Light Preference | Full Sun |
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Water Preference | Lots of Water |
Rootzone Tolerance | Well-Drained Soils, Fertile Loamy Soils, Easy to Grow |
Pest(s) | Chewing Insects, Sucking Insects |
Propagation Method | Seed |
Foliar
Foliage Retention | Evergreen |
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Mature Foliage Colour(s) | Green |
Mature Foliage Texture(s) | Hairy / Hirsute, Rough |
Foliar Type | Simple / Unifoliate |
Foliar Arrangement Along Stem | Alternate |
Foliar Attachment to Stem | Petiolate |
Foliar Shape(s) | Non-Palm Foliage |
Foliar Venation | Pinnate / Net |
Foliar Apex - Tip | Acute |
Floral (Angiosperm)
Flower Colour(s) | Brown, Orange |
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Flower Grouping | Cluster / Inflorescence |
Flowering Period | Free-Flowering |
Image Repository
Others
Master ID | 32362 |
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Species ID | 6773 |
Flora Disclaimer | The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes. |