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Thunbergia erecta

From Wikipedia, the free encyclopedia

Thunbergia erecta
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Acanthaceae
Genus: Thunbergia
Species:
T. erecta
Binomial name
Thunbergia erecta

Thunbergia erecta (Benth.) T. Anders., commonly known as the bush clock vine or king's mantle, is a vibrant, evergreen shrub that belongs to the family Acanthaceae. Native to the forest zone stretching from Guinea-Bissau to Western Cameroon, it has found significant cultivation worldwide due to its ornamental appeal and versatility. The plant is particularly known for its erect or scandent growth habit, reaching a notable height of up to five meters or more. This robust shrub displays a fascinating range of pale to dark violet-purple flowers that contribute to its visual appeal and broad popularity. Each flower measures between 5.0 to 7.5 cm in length, hosting a stark white tube at their core. This striking color contrast lends an undeniable charm to the plant, making it a favored choice in various garden settings and landscapes.[1]

In Ghana, two distinct forms of Thunbergia erecta are recognized. The first presents itself with smaller leaves and violet flowers, which yield viable seeds. In contrast, the other variant features larger leaves and blooms pale blue flowers. An interesting aspect of this second form is that it does not produce any seeds. Despite this, it exhibits a heightened resilience to drought, indicating the plant's adaptability to different environmental conditions. This adaptability, combined with its remarkable ornamental features, has led to the extensive cultivation of Thunbergia erecta beyond its natural habitat. The plant's capability to withstand regular clipping also makes it an excellent choice for creating hedges in both public spaces and private gardens.[2]

Known as the bush clock vine and king’s mantle in the United States, Thunbergia erecta has acquired various common names depending on regional and local dialects. This multiplicity of names testifies to the plant's broad cultivation and widespread popularity across different regions. The plant is frequently used in agri-horticulture, both as a beautiful ornamental addition and as a marker plant, owing to its distinctive growth habit and visually striking features.[3]

A deeper understanding of the versatility and resilience of Thunbergia erecta reveals its potential for sustainable cultivation in various environments. Its adaptability to different soil types and moisture levels, as well as its drought resistance, speaks to the plant's robustness and ease of cultivation. With its striking flowers and robust growth, Thunbergia erecta is more than just a decorative plant – it is a testament to the fascinating diversity and adaptability of nature's flora. Studies of its growth patterns, adaptability, and environmental needs continue, enhancing our knowledge and appreciation of this extraordinary plant.

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Transcription

Description

Thunbergia erecta plant with flowers
Thunbergia erecta plant with flowers

Thunbergia erecta is a robust evergreen shrub known for its distinctive appearance and impressive adaptability. With a potential height of up to five meters or more, this plant exhibits an erect or scandent growth pattern, making it a visually imposing presence in any landscape.[4]

Flowering

The flowers of Thunbergia erecta are one of its most distinguishing features. These blooms, ranging from pale to dark violet-purple in color, are significantly large, measuring between 5.0 to 7.5 cm in length. Each flower houses a stark white tube at its core, creating a striking contrast that greatly contributes to the plant's ornamental appeal. Depending on the region and variant, the flowers may also present in a beautiful shade of pale blue, further enhancing the plant's aesthetic value.[5]

Leaf Structure

This species exhibits two different leaf forms, particularly notable in Ghana. One variant possesses smaller leaves accompanying its violet flowers, which produce viable seeds. In contrast, the second form has larger leaves that accompany its pale blue flowers, although it does not yield any seeds. This variation in leaf size and structure, alongside the presence or absence of seeds, indicates a remarkable degree of botanical diversity within the species.[6]

Habitat and Adaptability

Originally hailing from the forest zones of West Tropical Africa, from Guinea-Bissau to Western Cameroon, Thunbergia erecta has demonstrated a remarkable degree of adaptability. The seedless variant with larger leaves and pale blue flowers, in particular, has shown a heightened resistance to drought. This has facilitated the plant's cultivation across a broad range of environmental conditions and regions beyond its native habitat. Furthermore, Thunbergia erecta can withstand regular pruning and clipping, making it an excellent choice for hedges and other structured garden elements.[7]

By understanding the plant's versatile nature and resilience, we can begin to appreciate its potential for sustainable cultivation across various environments. Its adaptability to different soil types, moisture levels, and climatic conditions bears testimony to the plant's robust nature. Studies into its growth patterns, adaptability, and environmental needs continue, promising to enrich our knowledge and appreciation of this unique and fascinating plant.[8]

Cultivation and Uses

Thunbergia erecta is a plant that has found favor in various regions of the world due to its numerous practical and aesthetic applications. Its cultivation spans both the realm of agriculture and horticulture, reflecting its versatile nature and adaptability.[9]

Ornamental Uses

This species is often cultivated for ornamental purposes due to its vibrant flowers and lush foliage. The contrasting hues of its flowers, varying from dark violet-purple to a pale blue, are a focal point of beauty in gardens and landscapes. In addition to its standalone ornamental value, the plant's hardiness and stature also lend it well to being used in landscaping as hedges or markers. Its ability to withstand regular pruning allows for a high degree of shape control, making it a favorite among landscapers.[10]

Agricultural Significance

In addition to its ornamental utility, Thunbergia erecta also possesses certain agricultural significance. The variant with small leaves and violet flowers is known to set viable seeds, indicating potential uses in plant propagation and potentially, genetic study. This trait, combined with its hardy nature, could make it a valuable addition to sustainable and adaptable farming practices.[11]

Cultivation Practices

The cultivation of Thunbergia erecta often involves partial tending, emphasizing its resilient nature. The plant exhibits an excellent adaptability to a range of environmental conditions. In particular, the variant with larger leaves and pale blue flowers has shown greater resistance to drought. This adaptability, coupled with the plant's robust growth pattern, make it suitable for various climates and terrains, from arid to tropical regions.[12]

While the plant is often seen in a cultivated setting, it is worth noting that its care and propagation do not require intensive practices. Rather, the plant's inherent hardiness and adaptability allow for a more relaxed approach to its cultivation, making it a suitable choice for both novice gardeners and experienced horticulturalists alike.[13]

Distribution and Habitat

Thunbergia erecta flower closeup photo
Thunbergia erecta flower closeup photo

Thunbergia erecta is a plant that is known for its adaptability and can be found in various parts of the world. Originating in the tropical regions of West Africa, it has established itself in various ecosystems and has displayed resilience in the face of varying environmental conditions.[14]

Geographical Distribution

The plant is native to the forest zone stretching from Guinea-Bissau to Western Cameroon, indicating its affinity for tropical climates. Over time, the bush clock vine has been introduced to and become established in other regions of the world, reflecting its adaptive prowess.[15]

In addition to its native range in West Africa, Thunbergia erecta has been widely cultivated in various regions globally. Its cultivation has been documented in the United States, where it is also known as the king’s mantle, highlighting the plant's worldwide appeal.[16]

Habitat Preferences

As a tropical species, Thunbergia erecta has an affinity for warm climates and is often found in forest zones. Despite its tropical origins, the plant has shown considerable adaptability, flourishing in a variety of environments.

One notable example is the plant’s drought-resistant variant. The form of Thunbergia erecta with larger leaves and pale blue flowers has demonstrated a remarkable capacity to withstand dry conditions. This form is often cultivated for its drought resistance, allowing it to thrive in environments that are less than optimal for many other species.[17]

Despite its versatility, it is important to note that the different forms of Thunbergia erecta have shown preferences for specific environmental conditions. For instance, the variant with small leaves and violet flowers, which sets viable seeds, has been documented more often in regions with regular rainfall. Conversely, the seedless form with larger leaves and pale blue flowers is known to be more prevalent in drier climates.[18]

History

Thunbergia erecta, also known as the bush clock vine or king's mantle, is part of the genus Thunbergia, named after the Swedish naturalist Carl Thunberg who made significant contributions to botany. This genus was first described in the scientific literature by the British botanist George Bentham, who made notable contributions to the classification of plants. This species was later classified by British botanist Thomas Anderson.

The species has its roots (literally and figuratively) in West Tropical Africa, where it has been part of local horticultural practices for centuries. It's often used as an ornamental plant and in hedges, testament to its aesthetic appeal and durability. The plant's popularity spread, and it is now cultivated in various parts of the world, particularly in tropical and subtropical regions.

Two distinct forms of this species are recognized in Ghana, differentiated by leaf size, flower color, and seed-bearing capabilities. This variation within the species underlines the adaptive nature of Thunbergia erecta and its ability to thrive under varying environmental conditions.

In recent years, Thunbergia erecta has continued to hold cultural significance and aesthetic value. Its vivid, bell-shaped flowers and lush foliage make it a popular choice for gardens and landscapes around the world. Today, it is cultivated extensively not just in its native range but also in regions as diverse as India, the United States, and various parts of Asia.

Common Names

Thunbergia erecta is commonly known as the bush clock vine and king’s mantle in the United States. However, the names may vary depending on the region and local dialects.[19]

References

  1. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  2. ^ Irvine, 1961: 748.
  3. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  4. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  5. ^ Irvine, 1961: 748.
  6. ^ Irvine, 1961: 748.
  7. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  8. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  9. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  10. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  11. ^ Irvine, 1961: 748.
  12. ^ Irvine, 1961: 748.
  13. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  14. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  15. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  16. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]
  17. ^ Irvine, 1961: 748.
  18. ^ Irvine, 1961: 748.
  19. ^ Burkill, H.M. (1985). The useful plants of west tropical Africa, Vol 1. Entry From: Thunbergia erecta (Benth.) T. Anders. [family ACANTHACEAE]

External links

This page was last edited on 18 March 2024, at 22:36
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