Pseuderanthemum crenulatum
(Wallich ex Lindley) Radl­kofer, Sitzungsber. Math.-Phys. Cl. Königl. Bayer. Akad. Wiss. München. 13: 286. 1883 (Syn: Eranthemum crenulatum Wallich ex Lindley, Bot. Reg. 11: t. 879. 1825; E. graciliflorum Nees; E. malaccense C. B. Clarke; Pseuderanthemum graciliflorum (Nees) Ridley; P. malaccense (C. B. Clarke) Lindau) as per Flora of China;
Pseuderanthemum graciliflorum (Nees) Ridl., 1923. (Syn: Eranthemum graciliflorum Nees, Pl. Asiat. Rar. (Wallich) 3: 107. 1832.; Eranthemum andersonii Mast., Gard. Chron. 134, 136. 1869.; Eranthemum crenulatum Nees, Pl. Asiat. Rar. (Wallich) 3: 107. 1832.; Eranthemum malaccense C.B.Clarke, Fl. Brit. India (J.D.Hooker) 4: 498.; Pseuderanthemum andersonii (Mast.) Lindau, Nat. Pflanzenfam. (Engler & Prantl) 4(3b): 330. 1895.; Pseuderanthemum crenulatum (Nees) Radlk., Sitzungsber. Math.-Phys. Cl. Königl. Bayer. Akad. Wiss. München 13: 286. 1884, nom. inval.; Pseuderanthemum malaccense (C.B.Clarke) Lindau, Fragm. Fl. Philipp. 40. 1904.) as per Wikispecies ;

Images
by Aarti Khale (Identified by Nidhan Singh & Tanay Bose), Siva (Identified by Aarti Khale) & Alka Khare (Inserted by J.M.Garg)

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Blue Twilight, Blue Crossandra, Florida Twilight 
 


Request for ID : 311210 : AK-1: Taken at Colombo, Sri Lanka on the 15th of November, 2010. 


-This plant can be Pseuderanthemum andersonii [Family: Acanthaceae]
Syn. Eranthemum graciliflorum, known as Blue Twilight, Florida Twilight


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Attached are pictures of Pseuderanthemum graciflorum captured at Thane, Dattaji Salvi Udyan in March 2015.
Requested to validate the ID.


I see I have made a mistake in uploading the pics, the first 2 belong to some Gardenia sps probably and not Pseuderanthemum graciflorum.. apologies for the same
Please consider only the last 2 pics for validation…


May be, but two pics are of Jasminum.


top two pictures buds gross anatomy is different from the bottom two

some mix up

bottom two your ideas is correct


Thanks … and … for validating…

Yes, the first 2 pics are of a different plant, I notice the mistake after I posted….

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MS April/16/01 Pseuderanthemum sp. for ID : 4 posts by 2 authors. Attachments (4)

Location : Tamdil
Date : 31/03/2016
Habit : small shrub
Habitat : Wild

I think it matches with images of Pseuderanthemum crenulatum at comparative images of Pseuderanthemum


Thanks a lot sir


For me the ID by … is correct. One more link for the plant ID : 


 

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MS April, 2016/27 Acanthaceae for ID : 3 posts by 2 authors. Attachments (1)
Location : Dampui, Mizoram
Date : 14/04/2016
Habit : Undershrub
Habitat : Wild

Can it be Pseuderanthemum crenulatum (Wallich ex Lindley) Radl­kofer as per images herein & as per your earlier identification of the same species ?


Thanks sir … for the id.


 

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MS Nov.2016/08 Ecobolium sp. ? : 6 posts by 2 authors. Attachments (1)
Location : Tamdil, Mizoram
Date : 31-03-2016
Habit : Undershrub
Habitat : Wild


Thanks, …  Pl. Check Eranthamum or similar species.


Pseuderanthemum crenulatum ?


Ecbolium sp. ?


Pseuderanthemum crenulatum ?


Yes, closer to images at Pseuderanthemum crenulatum (Wallich ex Lindley) Radl­kofer


 

 

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Dattaji Salvi Udyan  Thane

Date: May 5, 2018 … Altitude: about 11 m (36 feet) asl

Pseuderanthemum andersonii  Lindau   

Listed in efi as 
 

 

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Please help to identify this garden plant from my garden in Trivandrum.
Leaves opposite, rough to touch.
Racemose inflorescence.

Plant about a foot high.
This is also a test mail sent from the groups page. 

Some species of Pseuderanthemum.


For me Pseuderanthemum andersonii.


Yes it is Pseuderanthemum andersonii as identified by …


09062013 ASP 46 : Attachments (1).  7 posts by 5 authors.

Please ID this small herbaceous ornamental plant with violet flowers. Photo was taken from a park in Sri Lanka in April 2012.


Should be Pseuderanthemum graciliflorum of Acanthaceae.


Is there a key for the genus Pseuderanthemum

there are more than 120 species… how does one diagnose a species from so many so closely resembling members? from one photo that may not have most of the differentiating features identified…
I am confused and worried…


This is a very rare ornamental plant also known as Blue Twilight, Blue Crossandra, Florida Twilight .


Key to few species can be found at –
Key no. 10 -> 17 -> 21 -> 22 -> 24 ->26 -> 27 = Pseuderanthemum


you put in a lot of work..
I’ll go thru and get back

SL 204 081213 : Attachments (1). 2 posts by 2 authors.  

Please ID this ornamental herbaceous plant with violet flowers. Photo was taken in Sri Lanka in Sep 2012.


Pseuderanthemum andersonii.


PRD 5 1/10/2014 : 7 posts by 6 authors. Attachments (1).

Please ID this ornamental herbaceous plant with violet flowers. Photo was taken in Sri Lanka in Dec 2013.


It looks like Clerodendrum serratum


Leaf doesn’t match with Clerodendrum serratum


Acanthaceae ornamental


To me also it looks like Clerodendrum serratum


Pseuderanthemum graciflorum as per Dave Gardens


 

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SK1703 06 Jan 2019 : 8 posts by 2 authors. Attachments (1) – 5 Mb.

Location : Sentosa , Singapore
Date : 18 October 2012
Altitude  131 m.
Habit : Cultivated

Pl. check 


Pseuderanthemum graciliflorum (Nees) Ridl. ?
Syn: Pseuderanthemum andersonii (Mast.) Lindau 

To me also appears close as per images at Pseuderanthemum crenulatum (Wallich ex Lindley) Radl­kofer

P. crenulatum or graciliflorum ?? url url
Both are same as per efi site link. 

References:

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