Ammannia auriculata Willd., Hort. Berol. 1: 7 1806. (syn: Ammannia aegyptiaca Willd.; Ammannia auriculata var. elata (A.Fernandes) A. Fernandes; Ammannia hyrcanica Fisch. ex Steud.; Ammannia latifolia Walp.; Ammannia longipes Wright apud Sauvalle; Nesaea transvaalica A. Fernandes);

This species occurs throughout tropical and sub-tropical regions of the world, from south-eastern North America through central America and the Caribbean to Argentina, from Egypt to south Africa and east through Pakistan and India east to China, as well as in northern Australia.

This species typically grows in shallow water or on the margins of streams, rivers, wadis, ponds and reservoirs as well as in marshes, seasonally flooded depressions, wet grassland and wet woodland, in many areas it is a common weed of rice fields and on damp, disturbed ground (Cook 1996, 2004; Wood 1997, Ghazanfar 2007). It grows on a variety of substrates, including black clay soils, mud and sand.
This species is described as being used for “raising blisters in rheumatic pains, fevers etc.” in Pakistan (efloras 2010) and “used as a counter-irritant for rheumatic pains” in India (Cook 1996).
Citation: Gupta, A.K. 2013. Ammannia auriculata. The IUCN Red List of Threatened Species 2013: e.T164059A17770480. http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T164059A17770480.en. Downloaded on 03 February 2017.

 

 

 

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pls id this small herb about 20cm-30cm. with opposite leaves found wild in a marshy area in Pujam Karnal Haryana


 

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a few pics more. Attachments (2)


This should be Ammania sp. may be A. coccinea.


I think … is right. A. coccinea appears closest. Is it reported from the area?


If it is A coccinea then it is a new report from Haryana. However Ammania auriculata found in the area.
Me agree with A coccinea


If it is a new record, kindly wait for fruits to appear to confirm.

http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=101366


Found the post interesting;
Was trying to verify the id as a part of my learning process when I came across the keys to the species;

Please see: http://books.google.co.in/books?id=VAkHZ_ctLeoC&pg=PA588&lpg=PA588&dq…


There is also a good key in eFlora of China.
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=101366
Since they are based on different characters, one can make a more useful key to cover species expected in the area
1a. Leaves scabrid above; hypanthium 4-angled; epicalyx prominent; calyx scabrid…………….A. verticillata
1b. Leaves not scabrid above; hypanthium campanulate, not 4-angled, epicalyx obscure
calyx glabrous……………………………………………………………………………………………………..(2)

2a. Leaves attenuate or truncate at base; petals absent; style shorter than the ovary; cymes
sessile and dense; flowers sessile…………………………………………………………………………….A. baccifera
2b. Leaves auriculate often clasping at base; petals present; cymes pedunculate; flowers
pedicellate…………………………………………………………………………………………………………..(3)
3a. Style half as long as ovary or shorter, capsule 1.5 mm in diam,; petals 1 mm long; calyx
reflexed in fruit……………………………………………………………………………………………………..A. multiflora
3b. Style as long as ovary or longer, capsule 2-5 mm in diam; petals 1.5-2 mm long…………….(4)
4a. Capsule 2-3.5 mm in diam; flowers usually 7 (3-15); capsule as long or longer than calyx
lobes……………………………………………………………………………………………………………………A. auriculata
4b. Capsule 3.5-5 mm in diam; flowers usually 3 (3-5); capsule shorter than or barely equalling
the calyx lobes………………………………………………………………………………………………………..A. coccinea

I would like to go with Ammannia auriculata Willd. for the time being.


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Weed for ID 25072013 CS 3 : Attachments (2). 3 posts by 2 authors.

 

Is this a species of Rotala.

Location: Patna, Agricultural fields


I think close to images at Ammannia auriculate


 

 

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Ammannia auriculata Willd. (accepted name) ?? : 6 posts by 2 authors. Attachments (8)

LocationKathmandu , Nepal
Altitude:  4500 ft.

Date: 23 October 2016


 

Though images of leaves at the following look different:

Are the leaves variable in this species ?


Yes, leaves look little different but I could get matching for this only out of 3 listed in Nepal, specially the fruits/ seeds and the altitude.
4 posts by 3 authors.

 

Pl. go through Rotala ‎(Lythraceae) page with images of species in efloraofindia.

If you find any incorrect identification, pl. let us know. If anybody can send images of other species of this genera (for incorporation in the website), if any, or can identify unidentified images, it will be really nice.
Thanks a lot to Dr. Thomas Mathew & Dr. K S Prasad for helping us on this genus.

 


I would like to know to which species of Rotala this plant belongs. Plant was growing in Delhi.
Attachments (3) – 1 MB each

I think close to images at Ammannia auriculata Willd.


Yes, I hope this is rightly identified by …!!

I would like to know to which species of Rotala this plant belongs. Plant was growing in Delhi.
Attachments (3) – 1 MB each

I think close to images at Ammannia auriculata Willd.


Yes, I hope this is rightly identified by …!!

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SK1650 16 Dec 2018 : 3 posts by 2 authors. Attachments (13) – around 500 kb each.
Location Gyaneswor, Kathmandu, Nepal
Elevation :  4500 ft.
Date  3 October 2018

Habit : Wild 

Which Ammania ??

Pl. check


Thank you …! I was with same opinion.
Ammannia auriculata Willd.
Nepali Name : जरायु  Jaraayu

 


https://08511630493324166816.googlegroups.com/attach/862ab08d49a00/Bk0033-2.jpg?part=0.1&view=1&vt=ANaJVrHPhvkGbv2vj-KA3OsbNGQZBnU_irKZHnbHe_DYLzwx2u7SnKm-dSAp9hVZCq0l2K3padvrpjQdVvfLr__MrHHy2nZkxvKB7IOFis8ISXpAVaPKBN8
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BK0033 : 6 posts by 3 authors. 2 images- around 850 kb each.

Lamiaceae
Location: Kathmandu
Elevation: 1400m asl
Habitat: cultivated land

Side view with fruits at early stage

Attachments (1)


Please check Ammannia of Lythraceae ! May be A. baccifera !


Ammania multiflora most likely


Thank you …!

Yes the flower relates to Lythraceae and genus Ammannia


It is  Ammannia auriculata Willd. (Nepali name= जरायु)  as of floral characters.

Lythraceae


 

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