Tadehagi pseudotriquetrum (DC.) Y.C.Yang & P.H.Huang, J. Jap. Bot. 70: 116 (1995) (syn: Desmodium pseudotriquetrum DC.; Pteroloma pseudotriquetrum (DC.) Schindl.; Tadehagi triquetrum subsp. philippinensis H.Ohashi; Tadehagi triquetrum subsp. pseudotriquetrum (DC.) H.Ohashi);
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Himalaya to China and Indo-China, Nansei-shoto to Philippines, New Guinea: Assam, Bangladesh, China South-Central, China Southeast, East Himalaya, India, Myanmar, Nansei-shoto, Nepal, New Guinea, Philippines, Taiwan, West Himalaya as per POWO;
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Keys in Flora of China and keys and details in A New Circumscription of Tadehagi and a New Genus Akschindlium (Leguminosae) (2003) (pdf). This publication says the distribution pattern differs between subsp. triquetrum and subsp. pseudotriquetrum; the former is not found in the Himalayas and is rare in Malesia.
1. Loments (pods) glabrous on lateral surfaces; leaflet-blade less than 3 times longer than broad, usually ovate or narrowly ovate. …… subsp. pseudotriquetrum
1. Loments (pods) densely to sparsely pubescent on lateral surfaces; leaflet-blade usually more than 3 times longer than broad, linear to narrowly oblong-ovate or narrowly ovate
… subsp. triquetrum
.


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Fabaceae (Faboideae) Fortnight :: Desmodium for id :: Gori Valley :: NS OCT 39/39 : 4 posts by 3 authors. Attachments (7)
This Desmodium with uni-foliate leaves was recorded from gori valley area…
Please suggest id..!!


I think this is Tadehagi triquetrum (syn. Desmodium triquetrum)….. Please check the FOI link flowersofindia


Yes, I also think it Desmodium triquetrum.


I think we should take it as Tadehagi pseudotriquetrum, as per keys in Flora of China and keys and details in A New Circumscription of Tadehagi and a New Genus Akschindlium (Leguminosae) (2003) (pdf). This publication says the distribution pattem differs between subsp. triquetrum and subsp. pseudotriquetrum; the former is not found in the Himalayas and is rare in Malesia. This gives keys as below:
Key to the subspecies of Tadehagi triquetrum:
1. Loments (pods) glabrous on lateral surfaces; leaflet-blade less than 3 times longer than broad, usually ovate or narrowly ovate. …… subsp. pseudotriquetrum
1. Loments (pods) densely to sparsely pubescent on lateral surfaces; leaflet-blade usually more than 3 times longer than broad, linear to narrowly oblong-ovate or narrowly ovate
… subsp. triquetrum


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TQ-Manipur12 Unid from Manipur: 3 images.- 2 high res.

Found this wild herb from Pea family in Manipur, in October, at altitudes of about 800-1000 m. Beautiful small pink flowers, and leaves with prominently winged stalks.
Any clues to its identity will be helpful.


Check Desmodium triquetrum


I think you are right! It is Tadehagi triquetrum (Syn: Desmodium triquetrum) indeed!


There is one Tadehagi alatum also, as per POWO.
Keys would help.


There is Tadehagi pseudotriquetrum also as per POWO and Flora of China.


Thanks …, for pointing out the other related species. Yes, one should compare with them too.


I think we should take it as Tadehagi pseudotriquetrum, as per keys in Flora of China and keys and details in A New Circumscription of Tadehagi and a New Genus Akschindlium (Leguminosae) (2003) (pdf). This publication says the distribution pattem differs between subsp. triquetrum and subsp. pseudotriquetrum; the former is not found in the Himalayas and is rare in Malesia. This gives keys as below:
Key to the subspecies of Tadehagi triquetrum:
1. Loments (pods) glabrous on lateral surfaces; leaflet-blade less than 3 times longer than broad, usually ovate or narrowly ovate. …… subsp. pseudotriquetrum
1. Loments (pods) densely to sparsely pubescent on lateral surfaces; leaflet-blade usually more than 3 times longer than broad, linear to narrowly oblong-ovate or narrowly ovate
… subsp. triquetrum


I think I will go with Tadehagi pseudotriquetrum, more because of the size of my plant. It was not an erect shrub 1-2 m tall. It was only about a foot or so tall, with stem not erect.


 

 


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References: POWO  Catalogue of Life  The Plant List Ver.1.1  ILDIS  GBIF (High resolution specimens) BSI Flora of India Checklist  Flora of China  FOC illustration  India Biodiversity Portal  Useful Tropical Plants

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