Tadehagi triquetrum

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Tadehagi triquetrum (L.) H.Ohashi (Syn: Desmodium triquetrum (L.) DC.; Desmodium triquetrum subsp. genuinum Prain; Desmodium triquetrum subsp. triquetrum ; Hedysarum triquetrum L.; Meibomia triquetra (L.) Kuntze; Pteroloma triquetrum (L.) Benth.; Tadehagi triquetrum subsp. triquetrum );
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¿ Tadehagi ? — ¿ named for some Japanese personality ?
try-KWET-rum — three-cornered
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commonly known as: trefle gros • Assamese: ulucha • Malayalam: adkhapanal • Marathi: काक गांजा kak ganja • Mizo: arhrikreh • Telugu: దమ్మిడి dammidi
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Main character. Winged petiole. Undershrubs. Branches triquetrous[3-edged] grooved. Leaflets 4-18 x 2-9 cm ovate-oblong. Flowers reddish or purplish, in axillary and terminal racemes. Pods linear oblong, flat, beaked, grey-pubescent, 4-7 jointed.
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Native to: s China, India, Sri Lanka, Indo-China, Malesia, n Australia, s-w Pacific
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India (N); Andhra Pradesh ; Arunachal Pradesh; Assam; Bihar; Dadra-Nagar-Haveli ; Goa ; Gujarat ; Haryana ; Himachal Pradesh; Karnataka ; Kerala ; Maharashtra; Manipur ; Meghalaya; Nagaland ; Orissa ; Punjab ; Sikkim ; Tamil Nadu ; Tripura ; Uttar Pradesh ; West Bengal  & other countries as per ILDIS;
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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 (Papilionaceae) Week :: Tadehagi triquetrum in Yeoor Hills & Tungar Hills :
Tadehagi triquetrum (L.) H.Ohashi
popularly known by its synonym: Desmodium triquetrum (L.) DC.¿ Tadehagi ? — ¿ named for some Japanese personality ?
try-KWET-rum — three-cornered

Oct 31, 2009 … at Yeoor Hills (part of Sanjay Gandhi National Park)
commonly known as: trefle gros • Assamese: ulucha • Malayalam: adkhapanal • Marathi: काक गांजा kak ganja • Mizo: arhrikreh • Telugu: దమ్మిడి dammidi
Native to: s China, India, Sri Lanka, Indo-China, Malesia, n Australia, s-w Pacific
some views: Sep 24, 2011 … at Tungareshwar Wildlife Sanctuary, Maharashtra
Oct 9, 2010 … at Tungareshwar Wildlife Sanctuary, Maharashtra
Oct 25, 2009 … at Tungareshwar Wildlife Sanctuary, Maharashtra
Desmodium triquetrum
Very nice pictures … This Desmodium is a shrub or undershrub Leaves unifoliolate.
The petioles are characteristically winged. clinching the ID
Was not aware about the new name.
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Desmodium triquetrum
Hedysarum triquetrum ‘Kakganga’
Mulshi October 2011.
Main character. Winged petiole.(IMG1,8 )
Undershrubs. Branches triquetrous[3-edged] grooved(Seen to some extent in IMG 1)
Leaflets 4-18 x 2-9 cm ovate-oblong. Flowers reddish or purplish, in axillary and terminal racemes.
Pods linear oblong, flat, beaked, grey-pubescent, 4-7 jointed.

The images are from 2 different plants. If they appear to be from different species please let me know. I have noted the colour difference but I think both plants are from same species.

I think there is a mix up.

Pictures Desmodium triquetrum1s.jpg, Desmodium triquetrum2s.jpg, Desmodium triquetrum9.jpg, Desmodium triquetrum10.jpg are of
Desmodium triquetrum and others,
I think other pictures might belong to D. laxiflorum because the inflorescence stalk and pedicel are hairy in the later sets of pictures where as though the inflorescence stalk is slightly hairy but pedicels are not.
Further the length of the pedicel varies then the standard petals in the second sets are whitish.
Consider the bract as well.
If you have picture/s of the leaves of the later sets, please check whether the leaves have winged petiole.

I had doubt in my mind. Two plants present side by side. I collected specimens for photographs from one due to good raceme. I saw clear winged petiole on other which I didn’t bother to observe on other.
Any way Flowers with more white are D.laxiflorum it seems 

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Herb ID request – RK86 – 8-Jan-2013:
Requesting id of this plant from Tungareshwer. It is around 3 to 4 feet tall and is flowering and fruiting now. The leaves have winged petiole and the stem is 4-sided.

… Tadehagi triquetrum (pop. syn. Desmodium triquetrum) … family: Fabaceae.

Yes Desmodium triquetrum.
The characteristic winged petiole is nicely captured along with the pods.

 

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Plant for ID: 02092013 : RV 3: 4 posts by 3 authors. 4 correct images as above.
Need help to ID this plant found it near the rice fields, flowering, in Ratnagiri on 29th August,13.

Images in your email are mixed up with different plants. The herb with winged petiole is Tadehagi triquetrum. I too had posted this plant sometime back : efi thread

Four images after Tadehagi (rightly IDd) are of the climber Cissus elongata of Vitaceae.

I am so sorry for the mix up in pictures…….but thank you for identifying the pictures

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Tadehagi triquetrum (L.) H.Ohashi SN Dec 15 : 3 posts by 2 authors. Attachments (4).

Tadehagi triquetrum (L.) H.Ohashi (= Desmodium triquetrum (L.) DC):
wild herb from Siddhapur area of Karnataka,
the herb is unique with its triangular ste,. unifoliate leaves and the pod with a tail like apex.

very nice

Tadehagi triquetrum (L.) H.Ohashi
at Yeoor Hills on October 11, 2009
at Tungareshwar Wildlife Sanctuary on October 25, 2009
at Yeoor Hills on October 31, 2009 
at Yeoor Hills on October 2, 2010
at Tungareshwar Wildlife Sanctuary on October 9, 2010

Thanks …, For the intricate details.

Looks like some Desmodium sp.??.
Location: Thane.

Tadehagi triquetrum (syn. Desmodium triquetrum)
…, winged petiole are visible.

 

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Request for ID.. : 5 posts by 2 authors. Attachments (2)
This was photographed at Mizoram during November-08. ID please…

May be some other genera other than Desmodium.

Tadehagi triquetrum (L.) H.Ohashi (=Desmodium triquetrum (L.) DC.)

Desmodium triquetrum

 

Name of the species: Desmodium triquetrum subsp. pseudotriquetrum
Family: Papilionaceae
Place of collection: Ranpur, Nayagarh, Orissa
Habit: Herb
Habitat: Wild, near perennial streams and boundary of moist deciduous Sal forests
Altitude: 200 to 600 m above msl
I could observe the winged petiole characteristic of Desmodium triquetrum but was wondering different nature of the leaves …..Then realised you have written it as ssp. pseudotriquetrum. That may be the difference. Thanks for sharing.
By the way for those who don’t know Triquetrous: Referring to 3 cornered branches
The mentioned species does not have any distribution in India as per Catalogue of Life;
It is Tadehagi triquetrum only as per keys in Flora of China.

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Tadehagi triquetrum :: Nagla block of SGNP :: 21 DEC 19 : 1 post by 1 author. 1 image.
Nagla forest  … part of Sanjay Gandhi National Park
Date: December 21, 2019 … Altitude: sea level to about 600 ft asl
Tadehagi triquetrum  (L.) H.Ohashi

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Please identify the weed plant.
Name of plant:
Location:         near Reserve Forest, Chathamattom, Ernakulam District, Kerala PIN:686671
Date:.               05.11.2020, 10.00am
Altitude:           1700msl
Habitat:            wild moisture
Plant habit:      straight upwards, branches, annual
Height:             07 feet
Leaves shape: long oval apex with two parts like lemon leaf
Flower:             diameter:05mm, deep purple non fragrant

Flower image indicates towards Fabaceae

Tadehagi triquetrum (Desmodium triquetrum)

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Fabaceae (Faboideae) Fortnight: Indonesia 3 : 2 posts by 2 authors. Attachments (1)
I have an unidentified Desmodium. Could you please help me.

Perhaps Desmodium triquetrum

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kanakeshwar, Alibag– 3Oct, 2010; Confirmation Desmodium triquetrum.. – efloraofindia | Google Groups ID121110PHK1 – efloraofindia | Google Groups

 

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ANMAR09/09 Tadehagi triquetrum (Please validate)  : 3 posts by 2 authors. Attachments (6)
There is a winged petiole in this plant.
Family: Fabaceae
Date: October 2014
Place: Dehra Dun, Uttarakhand
Habit: Shrub

Indeed Tadehagi triquetrum.

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Tadehagi triquetrum (L.) H. Ohashi: 10 very high res. images.

Location: Dailekh, West Nepal
Altitude:  834 m.
Date: 13 August 2021 
Habit : Wild 

 

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References:

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