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Blue Dawnflower, Oceanblue Morning Glory, Island Morning Glory, Purperwinde, Blue morning-glory ; 
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Herbaceous climber similar to I. nil in sometimes 3-lobed leaves, longer sepals often reaching 24 mm and narrowed towards tip, but distinct in sepals with appressed pubescent, corolla usually longer, bluish with commonly purplish throat.

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Species (I. nil) appearing similar to I. indica but with sepals densely hirsute at base, often slightly curved above, lighter coloured smaller flowers.   
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The main feature of distinction is calyx lobes. in I. indica calyx lobes are 10-20 mm long, ovate-lanceolate and long acuminate, pubescent or glabrous. In I. nil sepals are 15-25 mm long, narrowly lanceolate, tapering into long tip and more importantly long hirsute especially near base. In fact I. hederacea is very close to I. nil, but tips of calyx calyx lobes in fruit are straight in I nil, but curved to one side or recurved in I. hederacea.
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I. hederacea Jacq. was recognised in eFlora of pakistan, but now both I. hederacea Jacq. and I. hederacea Baker & Rendle have been merged with I. nil.
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19/05/2021 : Hooghly : Convolvulaceae : Ipomoea: 6 images.
As per KEY in the thread, this should be Ipomoea indica (Burm.f.) Merrill.

Photographed yesterday (18.5.21), roadside wild, probably an escape and naturalized.


Check for Ipoemea nil. 


Sir ji, you make me nervous!

I have a 2012 post, where flowers are markedly smaller – efi thread
Yet, … post – efi thread – confirmed/validated by … makes me nervous again.
So, I take FoC help :-
  • Outer sepals lanceolate basally, with a long linear acumen, spreading hirsute basally … I. nil (as in my 2012 post)
  • Outer sepals lanceolate to broadly lanceolate basally, long and gradually attenuate apically, appressed hairy …. I. indica
Finally, I think it may not be I. nil.

Thank you so much, it helped me recheck my 2012 upload.


Master ji Thanks. Your efforts are commendable. What an in-depth study. Your ID is final for me.



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Ipomoea for ID : 280511 : AK-1: Taken at Munnar, Kerala on the 21st of Oct,2008.

Ipomoea tricolor I think has mostly entire leaves. This could be I. indica, but only lateral close up of flower showing showing calyx should help.


Yes, I nil is also possible. calyx would help


Found one more picture taken at the same place on 21st Oct,2008 at Munnar. Could this be of any help?


would go with Ipomoea indica


even i get confuse between I. indica and I. nil.. flower look exactly similar.. May leaves shape help..


The main feature of distinction is calyx lobes. in I. indica calyx lobes are 10-20 mm long, ovate-lanceolate and long acuminate, pubescent or glabrous. In I. nil sepals are 15-25 mm long, narrowly lanceolate, tapering into long tip and more importantly long hirsute especially near base. In fact I. hederacea is very close to I. nil, but tips of calyx calyx lobes in fruit are straight in I nil, but curved to one side or recurved in I. hederacea.


I. hederacea Jacq. was recognised in eFlora of pakistan, but now both I. hederacea Jacq. and I. hederacea Baker & Rendle have been merged with I. nil.



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Covolvulaceae Week – Bangalore – RA – Ipomoea indica – Blue Dawn Flower: Blue Dawn Flower is a morning glory vine with a striking purple-blue color flowers. Origin of the plant is uncertain, but it is widespread throughout the tropical world.

The flowers open in the morning and fade to magenta in the evening. Blue Dawn Flower is a perennial with heart-shaped or 3-lobed leaves and with flowers produced daily from a dense clustered inflorescense.
Blue Dawn Flower is commonly found at hill stations like Nainital and Mussoorie, scrambling over fences and over woody plants, often to their detriment. It is also found in south India. It has been described as troublesome if left unchecked.

But it is delight when in flower. This plant can produce hundreds a fragile flowers everyday and since it works on a 24 hour cycle it can leave a messy carpet below. The flowers are dark blue in the morning to purple/magenta at noon and pink in the evening. The next night they will curl fuchsia-shaped and fall to the ground the next day or two.
Link


This another species that is often self-incompatible but seeds are still produced by some geo-strains…


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Blue dawn Morning Glory-MN280312: sharing photos of Blue dawn Morning glory 


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Ipomoea for ID : Nasik : 201112 : AK-3: Pictures taken at Papaya Nursery, Nasik on 30/11/11.
A cultivated, garden climber with large Purple flowers.
Ipomoea id please.

This is Ipomoea learii Knight ex Paxton which is now a syn of Ipomoea indica (Burm.) Merr. Frontal views of flower do not suggest anything, In Convolvulaceae showing inflorescence and the calyx of flower is necessary for a correct ID. Now ID is just a guess.



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Requesting ID of the small plant: 21032013: ARK-02 :  1 image. 3 posts by 2 authors.
Requesting ID of this purple flower

Captured in Mumbai in September 2012


Ipomoea indica (Burm.f.) Merr.

syn: Convolvulus indicus Burm.f.; Ipomoea congesta R. Br.; Ipomoea leari Paxt.; Pharbitis leari (Paxt.) Lindl.



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Morning Glory For ID : Kodaikanal : 130714 : AK-26 : 8 posts by 4 authors. Attachments (1).

Morning Glory climber seen on 23/10/08 in Kodaikanal.

Species id please.


Ipomoea hederifolia L.?


No, definitely not Ipomoea hederifolia, which has red flowers and known to me.

This could be I. indica or I. nil.


The flower belongs to Ipomea indica


Yes I. indica most likely.



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Ipomoea For ID : California : 29NOV14 : AK-67 : 6 posts by 3 authors. Attachments (2).

Morning Glory seen in Sacramento on 7/10/14.

Ipomoea indica?


could be

leaf shape with such lobes can be seen in several bindweeds in tropical america though with some variations

lets see what our experts think

In australia this in the weeds list …. it overpowers all that it grows near


The sepals visible in the lower left of photo P1030961.JPG are of Ipomoea indica.



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Ipomoea For ID : Nasik : 30AUG15 : AK-59 : 59/59 : 2 posts by 1 author. Attachments (1)

Cultivated, garden plant seen at a plant nursery in Nasik.

Ipomoea indica?


Yes , Ipomoea indica it is 



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SYMBIOSIS :574 : 1 post by 1 author. Attachments (1).

Attaching an image of a Bumble bee on the flower of a Ipomoea Sp.


Appears to be Ipomoea indica (Burm.) Merr.  as per images herein.


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Help me in identifying the Convolvulaceae weed predominating Bangalore: I couldn’t attach the snap along with this mail as the option isn’t available.  The weed which I am talking about spreads at a fast pace.
It is a climber which doesn’t even spare the electric poles and climbs them.  This at present is more dominating than Parthenium.  Please do suggest the possible scientific names!


The fast-spreading convolvulaceae member in Bangalore could be any of the 3 species viz. Ipomoea indica, Ipomoea muricata or Ipomoea parasitica. Another plant, Argyreia cuneata is also common near Hebbal area, but it is not that fast-spreading.
Pl check this link



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Ipomoea indica (Burm.f.) Merrill, Interpr. Herb. Amboin. 445. 1917

Syn: Convolvulus indicus Burm.f.; Ipomoea mutabilis Lind.

Herbaceous climber similar to I. nil in sometimes 3-lobed leaves, longer sepals often reaching 24 mm and narrowed towards tip, but distinct in sepals with appressed pubescent, corolla usually longer, bluish with commonly purplish throat.

Photographed from Delhi and California


I have a query about differentiation between the three species.
I.indica
I.nil
I. learii

I have seen the last one in Mahabaleshwar with …. (Will post it separately)
I hope you will tell us the differences clearly.


According to  eFlora of Pakistan, eFlora of China and The Plant List, Ipomoea learii Paxton is a synonym of I. indica. I have given differences between I. indica and I. nil. Here are specific differences:
Ipomoea indica                               ​                                                          Ipomoea nil
1. Stems appressed pubescent, sometimes rooting at nodes           1. Stems covered with long spreading hairs.
2. Leaves pubescent with short hairs                                                 2.  Leaves with long spreading hairs
3. Infl. Several flowered in dense umbellate cymes.                          3.  Inf. 1-few flowered.
4. Bracts linear or lanceolate.                                       ​                      4. Bracts linear or filiform
5. Sepals subequal, gradually linear-acuminate,                                5. Sepal almost equal, with spreading long hairs on outside
     appressed pilose, outer 3 lanceolate to broadly                               near base, subglabrous above with linear tip
     lanceolate, inner 2 narrowly lanceolate.
6. Corolla blue or bluish-purple aging to red, 5-7 cm long.                 6. Corolla pale to bright blue with white tube, fading pinkish with age, 3-5 cm long                       ​                              ​                                                              
7. Capsule 10-13 mm across.                       ​                                      7. Capsule 8-10 mm across


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SK1573 16 Nov 2018 : 6 posts by 2 authors. Attachments (6)- around 700 kb each.
Location: Nagarkot, Nepal 
Date: 27 October 2018
Elevation: 6000 ft.
Habit : Wild
Thank you.
Which Ipomoea ?

Pl. check comparative images at

Ipomoea nil (L.) Roth  ??


I feel a little different from images at

Pl. check Ipomoea indica
To me appears close.


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Re: Ipomoea nil : 6 posts by 5 authors. 2 images.
This is from Kalimpong, West Bengal

Please identify the species


Seems correct ID.


Ipomoea nil and Ipomoea indica are confusingly similar. Bracts/ sepals needs to be checked, which are not clear here.


Ipomoea indica. In I nil, tube largely remains white.


yes i have been concerned about dx of I. nil

i agree with … for the differential features
Also …: This ipomoea is growing thru a thicket of some Kanta kari plants on both sides
do you have pictures of those ? their flowers, leaves, stem  and fruits by any chance?


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Fwd: It is Ipomoea indica,not I nil : 1 post by 1 author. 6 images.
This is from Kalimpong, West Bengal
Please identify the species

Ipomoea nil and Ipomoea indica are confusingly similar. Bracts/ sepals needs to be checked, which are not clear here.


Ipomoea indica. In I nil, tube largely remains white.


Thanks to …



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Ipomoea Species for ID : Bangalore : 14JAN20 : AK-20 : 3 posts by 2 authors. Attachments (3)
A cultivated plant seen last month.

Ipomoea indica


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Morning Glory for ID : California : 10JUN21 : AK-04: 3 images.
Found these old pictures.

Taken in Los Angeles during my visit in Oct, 2014.
I seem to have missed out earlier.


Images tally with Ipomoea indica (Burm.) Merr as per this link: keys.lucidcentral


Hope the ID gets validated by other members.


May I request you to pl. post a high resolution image of 1st and 3rd image to see the details of calyx.


2 high res. images.




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References:

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