Jamaican snakeweed, Blue porterweed, Blue snakeweed, Brazilian tea, Jamaica vervain, Joee, Kariyuttarani (Kannada), சீமை நாயுரிவி Seemai nayuruvi (Tamil); 

 

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Lamiaceae & Verbenaceae Week : Sri Lanka : 060711 : AK-2:  Found growing wild on 15/11/2010 at Sri Lanka.
Very small plants, growing in the grass.
Had to bend down and take the pictures.
Compared to the other Stachytarpheta plants which are 3-4 feet in height, this was very small.

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Alagarkoil flora 06072012 TBN !for id: Please identify this plant details of which are as follows:

Date :  9/02/2012                                                        
Location :Alagarkoil Hill Ranges(adjacent plains)
Altitude :947 ft (coordinates: N 10* 09 468; E 78* 15 160)
Habitat :Fallow dryland
Habit :wild herb
Height :approx 1to 2 ft
Leaves :as depicted
Flowers :lavender
Fruits :not seen
Local name :not known


This is Stachytarpheta jamaicensis of Verbenaceae.
Tamil name: எழுத்தாணிப்பூண்டு ‘Ezhuthaanippoondu’

   

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Requesting to please ID this plant captured on the way to Bandipur WLS, Karnataka by the roadside in November 2013.
The flowers were very small, probably 1 cm in dia. Is it some Stachyterphata?


yes this is Stachytarpheta


Stachytarpheta jamaicensis 


Yes Stachytarpheta jamaicensis.
A plant which attracts a large number of butterfly species.

 

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May 2014
requesting identification of this small ornamental plant with violet flowered spikes. it was mixed with some other plants. sorry for poor quality of pics


Is it some Stachytarpheta sp. ? 


Thank you Ganeshram Esh . Yes it is Stachyterpheta. just now it was Id’d on another group as Stachyterpheta indica


As per GRIN & WCSP, Stachytarpheta indica (L.) Vahl does not have range in India.         
Different book references as below points to Stachytarpheta jamaicensis (I..) Vahl S. indica auct. non (L.) Vahl, being found in India:

Flora of Ranga Reddi District Andhra Pradesh, India By T. Pullaiah, M. Silar Mohammed (2000)
Flora of Madhya Pradesh: Chhatarpur and Damoh By G. P. Roy, B. K. Shukla, Bhaskar Datt         
  
Sharing the image of Stachytarpheta indica from Anaikatti, Coimbatore.

 

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Attached are pictures of Stachytarpheta jamaicensis captured at Ooty, Bandipur in November 2013.
Was posted on the forum earlier and identified.


Images by tspkumar 

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TSPNOV2015-99-173: Images of Stachytarpheta indica (Verbenaceae) : 7 posts by 3 authors. Attachments (4)

It is my pleasure to share few images of Stachytarpheta indica (Verbenaceae 

Habit: Under shrub 

Habitat: Wild, occurring in wastelands. 

Sighting: Eastern Plains of Chikmagalur and Tumkur, Karnataka, about 800 msl 

Date: 12-08-2014, 18-11-2014 and 29-09-2015


blue snake weed. we also know it (i think) as Stachytarpheta jamaicensis
I have seen it planted in at least one herbal gardden in south 24 paraganas in west bengal a few years ago… even though its supposed to be a bit toxic to the liver
do your region have ethnobotanical studies? do tribals in your forest use it?


As per GRIN & WCSP, Stachytarpheta indica (L.) Vahl does not have range in India.          

Different book references as below points to Stachytarpheta jamaicensis (I..) Vahl S. indica auct. non (L.) Vahl, being found in India:

Flora of Ranga Reddi District Andhra Pradesh, India By T. Pullaiah, M. Silar Mohammed (2000)
Flora of Madhya Pradesh: Chhatarpur and Damoh By G. P. Roy, B. K. Shukla, Bhaskar Datt         
Floristic Diversity of Assam: Study of Pabitora Wildlife  (2003)


The Flowers of India site lists Stachytarpheta indica in their pages and call it as “Indian snake weed” and says that it is similar to S. jamaicensis. They further add that it is not clear as to whether the two are same…! 

Ref:http://www.flowersofindia.net/catalog/slides/Indian%20Snakeweed.html


yes, …  all those links that …
has sent if you look at them (i did just now) both are listed in the same listing as if the authors are implying they are synonyms

all snakeweed at east these blue one hybridize like crazy and are according to univ fl extension …difficult to differentiate…

i did not readily find any molecular analysis papers

so may be one has to wait till these weeds find enough interest in the research community

i may yet because it seems it may be an important anti-inflammatory  and may even be useful in diabetes…


Yes …, The possibility of natural hybridisation has compounded the problem of classification and nomenclature. As per my field observation over the years the ones growing in the Eastern plains have off-blue coloured flowers and the ones growing around Ghat forests have deep blue flowers. But I cannot substantiate scientifically….Its only my observation…!


 

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Attached are pictures of Stachytarpheta cayennensis captured at MNP in March 2013.
Could someone please indicate the difference between S. jamaicensis and S. cayennensis?


difference is in the leaves
but you need absolutely flat leaves like when you put it on ground or a white sheet of paper or make a herbarium, several leaves and from both types and compare
there is a way to differentiate
but it can not be done it here, no leaf is flat and one that looks flat makes one dx and another that’s curving creates doubts.
optical illusion makes the teeth look different in your different leaves
this is a case where if it pleases you you keep the diagnosis you have

was it labelled by the botanists there? or label it as Stachytarpheta sp..


I managed to get some shots of the leaves yesterday, attached as pics…
Based on Dineshji’s post, this does seem to be S. cayennensis.
Please advice….


I think we should take it as Stachytarpheta jamaicensis (L.) Vahl in view of the links provided by … as below along with Factsheet links, for the time being:


 

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I had taken these photographs last year while accompanying … within Bangalore and Chikamagalur in September 2015. Comparison with images images on Flowers of India is even more confusing, but looking at this website and comparison therein (although it considers S. indica as synonym of S. jamaicensis) I place this within S. jamaicensis


Thanks, … I think yes as per http://lee.ifas.ufl.edu/Hort/GardenPubsAZ/Blue_porterweed.pdf

 
in SGNP, Mumbai on Sunday the 29th June; On 17/8/08 in Talakona forest, AP; Valley School, Bangalore-231108; in month of DEC. 2008;   For ID-241108RK3 – indiantreepix | Google Groups Flower ID : SGNP : Railway Station – indiantreepix | Google Groups For ID 270808JM2 – indiantreepix | Google Groups

Wildflower for ID (02) : 12 posts by 3 authors. Attachments (2)- around 800 kb each. 
For ID. 
Date: 06/09/18
Location : Jawalagiri (near Hosur)
Altitude   : 997 ASL
Habitat.   : wild

Stachytarpheta sp?

possibly Stachytarpheta jamaicensis native of florida though

Thanks, … for the id.
I agree with you for Stachytarpheta jamaicensis (L.) Vahl as per comparative images at Stachytarpheta 


 
Flower for Id -ID13082020SH3 : 5 posts by 4 authors. Attachments (1)- 2 mb. 

Going through some old unidentified photos in this Lockdown period.  
Flower for Id.
Location – SGNP, Mumbai
Date – August 2016

Stachytarpheta mutabilis (Jacq.) Vahl ?? 


Yes. A common weed plant here during rains.


It is Stachytarpheta jamaicensis a common weed in marshy areas


 

Small Plant for ID : Bangalore : 07SEP20 : AK-09 : 4 posts by 2 authors. Attachments (3)
A small plant growing in the grass with tiny purple flowers seen during June.

Looks to be Stachytarpheta Species.

Stachytarpheta jamaicensis

Verbanaceae 


 

6 Identify weed plant : 6 posts by 3 authors. 4 images- 1 mb each.
Please identify the weed plant.

Name of plant:

Location: near Reserve Forest, Chathamattom, Ernakulam District(far east), Kerala PIN:686671

Date:13.10.2020, 02.00pm

Altitude:1700msl

Habitat: wild moisture

Plant habit: growing upwards

Height: 4ft

Leaves shape: oval long tip with side jaws

Flower Diameter 07mm, deep blue, non fragrant. 


Stachytarpheta sp. ???


Yes, most likely to be Stachytarpheta jamaicensis (L.) Vahl as per comparative images at Stachytarpheta


 
References:

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