Allamanda cathartica?

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J.M. Garg

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Jul 15, 2008, 12:04:20 PM7/15/08
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On 13/7/08 in Hyderabad, AP. I hope the Id is correct?
 
Here are some extracts from Wikipedia link on Allamanda: http://en.wikipedia.org/wiki/Allamanda

Allamanda, also known as Yellow Bell, Golden Trumpet or Buttercup Flower, is a genus of tropical shrubs or vines belonging to the dogbane family (Apocynaceae).

The genus Alamanda is native to South and Central America. Their year-round production of large, bright flowers have made the Allamanda popular ornamentals.

A woody, evergreen shrub with vigorous growth, Allamanda may reach a free-standing height of 2 metres or more. The leathery leaves are lancelike, pointed, and may either be opposite or in whorls of three or four. The yellow, trumpet-shaped flowers are 5-7.5 centimetres in diameter; cultivated forms tend towards larger blooms which may also be white, purple, pink or orange in colour. Their scent may be described as delicate and fruity.

In the wild, Allamanda grow along riverbanks and other open, sunny areas with adequate rainfall and perpetually moist substrate. The plants do not tolerate shade, salty or alkaline soils; they are highly sensitive to frost. Allamanda are otherwise undemanding and with appropriate conditions will grow rapidly, from 1-3 metres annually. The seed capsules are oval and prickly; cultivated forms rarely produce seeds, but Allamanda are easily propagated from cuttings. Discarded cuttings are quick to take root.

Allamanda have become naturalized throughout the tropics; they may be seen in roadside ditches, abandoned yards and dumps. As a controlling measure, cutting is ineffecive with Allamanda and will lead to vigorous coppicing. Owing to its fast growth, Allamanda has been introduced widely where it is used as a groundcover or for hedges and screens. In some areas Allamanda are an invasive species, notably Allamanda cathartica in Queensland, Australia.

Allamanda cathartica is also notable for its medicinal properties: all parts of the plant contain allamandin, a toxic iridoid lactone. The leaves, roots and flowers may be used in the preparation of a powerful cathartic (hence the name); the milky sap is also known to possess antibacterial and possibly anticancer properties. Gardeners exposed to the sap will develop rashes, itch, and blisters.

The genus name Allamanda derives from Dr. Frederich Allamanda (1735-1803), a Swiss botanist of the late 18th century.


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Allamanda cathartica- is it- in Hyderabad, AP I IMG_7698.jpg
Allamanda cathartica- is it- in Hyderabad, AP I IMG_7699.jpg
Allamanda cathartica- is it- in Hyderabad, AP I IMG_7700.jpg

J.M. Garg

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Jul 20, 2008, 10:04:49 AM7/20/08
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Mailing again for Id confirmation pl.

Gurcharan Singh

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Apr 12, 2021, 10:28:33 AM4/12/21
to efloraofindia
Forwarding for ID
Distributed as Allamanda cathartica ?
Yes glabrous leaves and calyx, unequal calyx lobes vote for A. cathartica
Group discussion at

Gurcharan Singh

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Apr 12, 2021, 10:29:49 AM4/12/21
to indiantreepix, jmgarg1, Dinesh Valke
Forwarding for ID
Distributed as Allamanda cathartica ?
Yes glabrous leaves and calyx, unequal calyx lobes vote for A. cathartica
Group discussion at

Allamanda cathartica- is it- in Hyderabad, AP I IMG_7698.jpg
Allamanda cathartica- is it- in Hyderabad, AP I IMG_7699.jpg
Allamanda cathartica- is it- in Hyderabad, AP I IMG_7700.jpg

J.M. Garg

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Apr 17, 2021, 7:05:28 AM4/17/21
to Gurcharan Singh, indiantreepix, Dinesh Valke
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Chennuru Nagendra

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Apr 17, 2021, 8:20:11 AM4/17/21
to efloraofindia
Gurcharan Ji may be correct



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Dinesh Valke

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Apr 18, 2021, 12:45:39 AM4/18/21
to J.M. Garg, Gurcharan Singh, indiantreepix
Many thanks Gurcharan ji for resurfacing this post.
I too strongly believe these short plants must be Allamanda schottii.
Regards.
Dinesh

On Sat, Apr 17, 2021 at 4:35 PM J.M. Garg <jmg...@gmail.com> wrote:

Paradesi Anjaneyulu

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Apr 18, 2021, 9:32:23 AM4/18/21
to efloraofindia, J.M. Garg, Gurcharan Singh
I agree with Dinesh Ji, 
With regards. 



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Gurcharan Singh

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Nov 17, 2021, 1:24:09 AM11/17/21
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I think A. cathartica, long cylindrical tube and much shorter swollen upper half is distinctive, in A. schotii cylinderical portion is much shorter than moderately swollen upper portion.

J.M. Garg

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Nov 23, 2021, 5:11:28 AM11/23/21
to efloraofindia, GurcharanSingh, Chennuru Nagendra, DineshValke, Paradesi Anjaneyulu
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With regards,
J.M.Garg
Allamanda cathartica- is it- in Hyderabad, AP I IMG_7698.jpg
Allamanda cathartica- is it- in Hyderabad, AP I IMG_7699.jpg
Allamanda cathartica- is it- in Hyderabad, AP I IMG_7700.jpg

J.M. Garg

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Nov 23, 2021, 5:13:07 AM11/23/21
to efloraofindia, GurcharanSingh, Chennuru Nagendra, DineshValke, Paradesi Anjaneyulu
Thanks, Singh ji.
You seem to be right.
I think the difference given above may be more appropriate to differentiate them as per POWO (Allamanda schottii Pohl) and POWO (Allamanda cathartica L.):
This way only posts at Allamanda schottii Pohl (accepted name) may be correct and others may be of Allamanda cathartica L. only.





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Dinesh Valke

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Nov 25, 2021, 11:44:14 PM11/25/21
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Thanks Gurcharan ji and Garg ji for illustrating the differences among the two species.
Regards.
Dinesh
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