Rhododendron dalhousiae Hook.fil., Rhododendron Sikkim Himalaya 1: , pl. 1 & 2 1849. (Syn: Azalea macrocarpa (Griff.) Kuntze; hododendron dalhousiae var. lindleyanum Lavallee; Rhododendron lindleyanum hort. ex Lavallee (ambiguous synonym); Rhododendron macrocarpos Griff.);

Tibet, Bhutan, E-Nepal, Sikkim, Darjeeling, Bangladesh, NE-India as per Catalogue of Life;

Collected in 1915 from Bhutan and subsequently from Kameng District in Arunachal Pradesh and China. 

An epiphytic shrub or small tree.
(From IUCN Red List (VU) ) 



Rhododendrons for ID : Attachments (2). 3 posts by 3 authors.

Attached herewith flowers of white rhododendrons taken at Darjeeling. The small shrub was found on a rocky hill slope. Pl confirm ID.

these are a variety of lilies not rhododendrons – rhododendrons grow on trees

Its Rhododendron dalhousieae



Id for Rhododendron sp poss R.lindleyi, Eaglenest, Arunanchal Pradesh: I have this magnificent Rhododendron very tenatively as Rhododendron lindleyi? Any confirmation please will be much appreciated?

near Eaglenest pass (c.2200m), West Kameng, Arunachal Pradesh, 21 April 2012
also maybe seen at
Difficult to check crucial details from this photo, but it would appear to be R. megacalyx.

Looks closer to images at Rhododendron dalhousieae

Please help for this ID.
Date of collection: April, 2006
Place: Eagle Nest Bird Sanctuary, Arunachal Pradesh

…, it is Rhododendron griffithianum Wight, Icon. Pl. Ind. Orient. 4: 6, t. 1203. 1848.

Looks different from other images at Rhododendron griffithianum Wight 
To me appears close to images at Rhododendron megacalyx Balf. f. & Kingdon-Ward 
Pl. confirm. 

Thanks a lot, … 
Are the images at Rhododendron megacalyx Balf. f. & Kingdon-Ward are also incorrect and are of Rhododendron dalhousiae var. Dalhousie only? 

It is not R. megacalyx. It is R. dalhousiae var. dalhousiae




Himalayan Flora: Rhododendron wightii: Scientific Name: Rhododendron wightii
Family: Ericaceae
Obliquely bell-shaped, pale yellow flowers with oblong to elliptic leaves. It is a shrub or small tree to 4m.

Kindly review this image again. I am afraid this seems R. dalhousiae subsp. tashii to me.
[I conclude this on the basis of the no. of flowers in the inflorescence, the size (apparent though) and shape of the flower, the convex stigma, and the typically bending style]
But it is surprising you found this in Lava (i.e. in the Darjeeling District) whereas this species (to my knowledge) has been reported only from Pangthang area in East Sikkim district of Sikkim.

I am not sure whether we can review this only with the help of available picture in which the inflorescence is not completely visible. As we can see in the picture the glabrous branches and leaves agree the characters of R. wightii described in flora of China http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200016611  

May be the (who uploaded the picture) has to review it with the help of key in any relevant flora with specimen in hand.
Flora of China says distribution of R. wightii in Bhutan, Nepal, Sikkim. Hence we have to consider that the distibution of R. wightii in Darjeling could have been ignored or wrongly identified so far.  

Considering the adaxial leaf features is ambiguous in the case of Rhododendron identification.
R. wightii flowers generally have red pigmented blotch and spots on the corolla (also mentioned in the flora link of flora of China mentioned in an earlier thread).
Also, R. wightii’s inflorescence has around 15-20 flowers and is easily distinguishable from this kind of few flowered inflorescence of R. dalhousiae with large flowers (The corolla colour appears much similar to the greenish lemon yellow coloured R. dalhousiae subsp. tashii flowers).

I guess it is Rhododendron dalhousiae Hook. fil.     




SK1164 01 JUNE 2018 : 6 posts by 2 authors. Attachments (4)- around 800 kb each. 

Location : Lava, Kalimpong, India
Date : 11 May 2018
Elevation :  7000 ft.
Habit : Wild
Which Rhododendron is this ? 

Pl. check 

Yes I did check but could not conclude.

Rhododendron dalhousiae Hook. fil.  ?? 

Yes it is Rhododendron dalhousiae Hook. fil. 

Nepali Name : लहरे चिमल Lahare Chimal 

It is R. dalhousiae



SK1189 10 JUNE 2018 : 6 posts by 2 authors. Attachments (6)- around 700 kb each. 

Location : Sukhiapokahari, Darjeeling, India
Date : 12 May 2018
Elevation :  6900 ft.
Habit : Wild
Which Rhododendron please ?

Pl. check at 

I could not match. 

To me appears close.

Rhododendron lindleyi T. Moore ??

It’s R. dalhousie. From where did you collected?

Thank you … for the ID. It was from Sukhiapokari. I have given 
data above.


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