Koelreuteria bipinnata Franch., Bull. Soc. Bot. France 33: 463 1886. (syn: Koelreuteria bipinnata var. apiculata How & Ho;  Koelreuteria bipinnata var. bipinnata ; Koelreuteria bipinnata var. puberula Chun; Koelreuteria integrifoliola Merr.);
China (Guangdong, Guangxi, Guizhou, Hubei, Hunan, Sichuan, Yunnan) as per Catalogue of Life;


 /wp-content/uploads/2020/10/Koelreuteria-bipinnata-Delhi-c.jpg

/wp-content/uploads/2020/10/Koelreuteria-bipinnata-Delhi-b.jpg
/wp-content/uploads/2020/10/Koelreuteria-bipinnata-Delhi-a.jpg

Sapindaceae Fortnight: Koelreuteria bipinnata from Delhi-GS24 : 11 posts by 5 authors. Attachments (3).

Koelreuteria bipinnata from Delhi, characterised by bipinnate leaves, pale purplish ovoid fruits turning brown at maturity (in K. paniculata the leaves are unipinnate with unequally cut leaflets and narrow conical fruits). Closely related species K. elegans is hard to distinguish with more oblique leaf base and long acuminate leaflets.
Photographed in October 2009 from Delhi University.


Closely related species K. elegans is hard to distinguish with more oblique leaf base and long acuminate leaflets.’
A fine distinction …
We have been fortunate to see K. elegans also this fortnight and appreciate the difference.


Thanks … I hope you will upload (or must have already done that, I have not been able to see all mails due to family commitments) that species to show us the visual differences.


Please see leaves in link
Am not sure whether it meets taxonomical standards.
I do not have identified images of this species.


Thank you Sir for nice pictures. I am sending herewith a paper about the revision of Koelreuteria as an attached file. I hope it may help also.


As per another thread, you confirmed it to be K. elegans.


Perhaps we may have to still work further.


Meyer, F. G. 1972. Revision of Keolreuteria. Journal of Arnold Arboretum 57(2) : 129- 166. Please find the article in the following link. http://www.biodiversitylibrary.org/page/11016195#page/137/mode/1up 

Due to large size of pdf file, it is not possible for me to send it as attached pdf file. Hope, it may help.


Thanks … for the paper.

Perhaps I will have to check it more closely. The two species seemed to be commonly confused.


Koelreuteria bipinnata from Delhi Attachments (3). 6 posts by 4 authors.
Koelreuteria bipinnata from Delhi, characterised by bipinnate leaves, pale purplish ovoid fruits turning brown at maturity (in K. paniculata the leaves are unipinnate with unequally cut leaflets and narrow conical fruits). Closely related species K. elegans is hard to distinguish with more oblique leaf base and long acuminate leaflets. Photographed in October 2009 from Delhi University.

Thanks for sharing. I needed this id since a long long time :). I think I need to learn from you how to pronounce this name…


Thanks … Perhaps we will have to keep K. elegans still in mind. The web pictures only confuse further. I hope to check further when it flowers. K. bipinnata has usually 4 petals, whereas K. elegans has 5.


I believe that this is Koelreuteria elegans ssp. elegans. It shares commonality with K. elegans ssp. formosana here in California. In Florida, it is the only one commonly planted or seen as an escapee. It appears more tolerant of near-tropical conditions than both K. elegans ssp. formosana and “true” K. bipinnata. 
Though true K. bipinnata is here in California, it probably represents less than 5% of all Koelreuteria sold as such. This is one, much like Araucaria columnaris vs. A. heterophylla, that the CA nursery trade has gotten wrong for many years. Curiously, Florida nursery trade hasn’t had this problem. 
I’ve been meaning to reshoot some pics (now gone) I had taken years ago that compared all three trees (plus the easily-separated K. paniculata) growing together on one street here near Los Angeles. The blooming times, bark, and branch structure are distinctly different. I’m not sure I’ll be able to accomplish it this summer– though now is the start of the blooming season here–due to some temporary restrictions of my driving privilege. I’ll post if I am able.


Thanks Kenneth for confirmation/correction

In fact this plant was lying in my folder as K. elegans, but after comparing photographs on the net (they are pretty mixed up), and being more commonly reported. I will see when the flowers appear.
Thanks for identification.


More discussions in another thread.

 /wp-content/uploads/2020/10/idrequired.jpg
Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 


 

/wp-content/uploads/2020/10/Copy_of_Chandigarh_tree.jpg

 

Avenue tree for ID 12082010 :  Attachments (1). 4 posts by 3 authors.

Avenue tree from Chandigarh flowering this season (12.8.10) with clusters of orange flowers. Leaves 20-30 cm, leaflets 12-20, alternate, 5-7 cm, elliptic, serrate, oblique, acuminate, tomentose. 


The tree appears to be Koelreuteria apiculata (Rehd. & Wils) Rehd.
Family: Sapindaceae
Also the flowers that you saw are actually the fruit.
If you do have the photos of the flowers that you have described, that would be of help.

I was also to ID but held back because to me the leaves appeared bippiate. In K. paniculata (syn: K. apiculata) the leaves are unipinnate with some leaflets deeply cut to different degrees.


 /wp-content/uploads/2020/10/unidiedTreeFlowers.jpg/wp-content/uploads/2020/10/unidiedTree.jpg
Unidied Tree : Attachments (2). 4 posts by 2 authors.
Would appreciate if someone could identify this tree. 


I suppose Koelreuteria paniculata


Thanks for sharing this pic. I am seeing this for the first time.
Common name is “Golden Rain Tree“, Family: Sapindaceae.


Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 


 

 

/wp-content/uploads/2020/10/IMG-20151010-WA0011.jpg

/wp-content/uploads/2020/10/IMG-20151010-WA0013.jpg

/wp-content/uploads/2020/10/IMG-20151010-WA0012.jpg
ID request SP0119102015 : 7 posts by 4 authors. Attachments (3)
Don’t know the location, can somebody identify this tree


Combretaceae…? 


Looks like Koelreuteria sp. ..


Koelreuteria species so far in efi  


I am pretty sure it is Koelreuteria…species not too sure..[ref..Pradip Krishen ..Trees of Delhi…page 304 and 339]

In Mumbai we have one in Colaba Woods Garden..


It seems like Koelreuteria paniculata.


Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 


I guess … is right


 

 

/wp-content/uploads/2020/10/UID-CHANDIGARH-5-%2025-9-2010.jpg

/wp-content/uploads/2020/10/UID%20CHANDIGARH%20-1-%2025-9-2010.jpg

/wp-content/uploads/2020/10/UID-CHANDIGARH-3-%2025-9-2010.jpg

/wp-content/uploads/2020/10/UID-CHANDIGARH-2-%2025-9-2010.jpg
/wp-content/uploads/2020/10/UID-CHANDIGARH-4-%2025-9-2010.jpg
Plant for Id : Attachments (5).  2 posts by 2 authors.

Posting plant IDGAS25092010 from Chandigarh for ID.
Date/Time — 25-09-2010 4.30 P.M.
Location — Chandigarh
Habitat —Garden
Type — Tree
Is it Koelreuteria eleganceMeliaceae family?


Koelreuteria elegans


Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 


 

/wp-content/uploads/2020/10/Flowers%20of%20Koelreuteria%20elegans%203_1.JPG

 

/wp-content/uploads/2020/10/Tree%20of%20Koelreuteria%20elegans_1.JPG
/wp-content/uploads/2020/10/Open%20fruits%20of%20Koelreuteria%20elegans_1.JPG

/wp-content/uploads/2020/10/leaf%20of%20K.%20elegans%202_1.JPG

Koelreuteria elegans in Mumbai Attachments (8). 4 posts by 4 authors.

I found some Unusual Loner Species of trees, very quietly and silently, flowering or fruiting in Mumbai’s gardens or lonely lanes……..
One of them ‘Koelreuteria elegans’ is in Colabawoods garden, next to Hotel President in Colaba.
I am sure it is Koelreuteria but not sure about the species, please correct me if I am wrong.


Wonderful pictures … Matches well with the description of K. elegans in Trees of Delhi.


I think day before I saw this tree in bloom in JNU at the Life Science Faculty


Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 


 

/wp-content/uploads/2020/10/Koelreutaria%20eleans_DharamshalaIMG_7239.JPG
/wp-content/uploads/2020/10/DSCN2150a.jpg

 

/wp-content/uploads/2020/10/DSCN2149a.jpg

/wp-content/uploads/2020/10/DSCN2136a.jpg

/wp-content/uploads/2020/10/DSCN2145a.jpg
/wp-content/uploads/2020/10/DSCN2142a.jpg
/wp-content/uploads/2020/10/DSCN2148a.jpg
Koelreuteria elegans hopefully Attachments (6). 5 posts by 2 authors.
Koelreuteria elegans for validation

chandigarh, last week. (25.9.13)
it has been planted by the administration as an avenue tree


I think another similar confusing species is Koelreuteria paniculata with 4 petals, while Koelreuteria elegans has 5 petals as per discussions therein


in one of the flowers in the bottom left corners five petals can be seen
hopefully that will help fixing the id 


Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 


 

 

/wp-content/uploads/2020/10/Koelreuteria%20elegans%20-4-.JPG
/wp-content/uploads/2020/10/Koelreuteria%20elegans%20-3-.JPG
/wp-content/uploads/2020/10/Koelreuteria%20elegans%20-2-.JPG
/wp-content/uploads/2020/10/Koelreuteria%20elegans%20-1-.JPG
Attachments (4). 4 posts by 3 authors.  
This large tree stands near Department of Botany, Kurukshetra University, Kurukshetra..
perhaps this is rightly identified as Koelreuteria elegans..


Nice pictures of the elegant tree!


Thanks … after seeing upload by …, I think I have to go closer and should have a relook…

Presently all what I have are distant shots…


Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 


 

/wp-content/uploads/2020/10/Koelreutaria%20eleans_DharamshalaIMG_7239.JPG
/wp-content/uploads/2020/10/Koelreutaria%20eleans_DharamshalaIMG_7240.JPG
/wp-content/uploads/2020/10/Koelreutaria%20eleans_DharamshalaIMG_7241.JPG

 

/wp-content/uploads/2020/10/Koelreutaria%20eleans_DharamshalaIMG_7436.JPG
/wp-content/uploads/2020/10/Koelreutaria%20eleans_DharamshalaIMG_7434.JPG
/wp-content/uploads/2020/10/Koelreutaria%20eleans_DharamshalaIMG_7433.JPG
/wp-content/uploads/2020/10/Koelreutaria%20eleans_DharamshalaIMG_7238.JPG

Requesting to please validate ID of this tree captured in a bungalow compound at Dharamshala, HP in October 2014.
Is this Koelreuteria elegans?


Koelreuteria sp. of Sapindaceae


The plant seems to be Koelreuteria elagnus


It is Koeleuteria apiculataChinese rain tree.
A very good avenue tree. Adds beauty to the landscape through its yellow flowers in large panicles & thereafter by red fruits- together for 2-3 months.


How do we differentiate between K. elegans and K. apiculata?


efi page on Koelreuteria elegans & Koelreuteria paniculata (syn: Koelreuteria apiculata Rehder & E. H. Wilson) 


Koelreuteria paniculata & K. apiculata are same.


Thank you … for the feedback..

As per the FOI link: K. elegans has twice compound leaves whereas K. paniculata has single compound leaves and the fruits are not conical.
In the third image above, the leaves can be seen as twice compound. Besides, the fruits are not conical.
So is this K. elegans or K. paniculata? am still a bit confused.


Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 

Koelreuteria elegans in FOI : 3 posts by 2 authors.
I think Koelreuteria elegans in FOI  appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 

You are right. I checked with other images of the Koelreuteria from Delhi that I have – the flowers have 4 petals, a distinguishing feature of Koelreuteria bipinnata.

Corrected on the site now.

 

/wp-content/uploads/2020/10/tn_DSC_0725-7.JPG
/wp-content/uploads/2020/10/tn_DSC_0732.JPG
/wp-content/uploads/2020/10/tn_DSC_0746.JPG
/wp-content/uploads/2020/10/tn_DSC_0727.JPG
/wp-content/uploads/2020/10/tn_DSC_0730.JPG
/wp-content/uploads/2020/10/tn_DSC_0694.JPG
/wp-content/uploads/2020/10/tn_DSC_0702.JPG
/wp-content/uploads/2020/10/tn_DSC_0716.JPG
/wp-content/uploads/2020/10/tn_DSC_0713.JPG
Here am uploading some images of Koelreuteria paniculata from Kurukshetra University taken on September 2018…!!

Appears closer to images and details at Koelreuteria bipinnata
Keys available in Flora of China and Meyer, F. G. 1972. Revision of Keolreuteria in BHL 



/wp-content/uploads/2020/10/Koelreuteria%20Species-Sapindaceae-P1290784.JPG
/wp-content/uploads/2020/10/Koelreuteria%20Species-Sapindaceae-P1300010.JPG

 

Koelreuteria Species For ID : California : 22OCT14 : AK-22 : 7 posts by 4 authors. Attachments (4)

A cultivated tree seen on way to Los Angeles on 2nd Oct,14.

On searching, found this could be Koelreuteria Species.
For validation and Species id please.
Last picture with green pods is taken in Los Angeles, the next day.  


I think it is Koelreuteria bipinnata.


Thanks for the Species id.


The whole tree with red (ripe) pods look good, did you take whole tree pic?
called golden rain tree k. paniculata are much loved but this k. bipinnata is feared to be invasive esp in hot moist states… in southern cal may not be so , yet.


/wp-content/uploads/2020/10/P1290783.JPG

/wp-content/uploads/2020/10/P1290778.JPG
/wp-content/uploads/2020/10/P1290776.JPG
/wp-content/uploads/2020/10/P1290777.JPG

 

I could find some more pictures, one of the whole tree….a young one.

Last picture with green pods in the first set of pictures seen in Los Angeles, is it another species?
Attachments (4)


There has been some confusion in Identification in the past between Koelreuteria elegans & Koelreuteria bipinnata ?


  

Leave a Reply

Your email address will not be published. Required fields are marked *