Common name: Chickweed Lobelia
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Only 4 species have been mentioned from the family in BSI Mah flora. Out of these 4 are native and 1 is cultivated: Lobelia erinus reported in gardens in Pune.
Of the 4 natives L. chinensis is a creeping herb with terete stem.
L. nicotianaefolia (Wild tobacco) is 1-3m tall.
L. alsinoides and L. heyneana are less than 50 cm tall. with solitary axillary flowers.
The differentiating key between them is given as
—–two of the anthers penicillate at tip; seeds ellipsoid … L.heyneana.
—–All anthers penicillate at tip.; Seeds trigonous … L.alsinoides.

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Diffuse herbs, stem 3-winged, glabrous. Leaves 3 x 1.5 cm, obovate, apex obtuse or acute, base narrowly winged on the petiole, crenate-serrate, nerves 4 pairs; upper leaves sessile. Flowers in terminal, short raceme; sepals 4.5 x 1 mm, lanceolate, glabrous; corolla blue, 10 mm long, ventral lobe broader; lateral and dorsal lobes lanceolate; anthers 2.5 mm long, 2 anthers with penicillate black hairs at apex; style stout, curved; stigma with a ring of hairs below.

Flowering and fruiting: September-November
Wet areas in evergreen forests and moist grassy places
Indo-Malesia, China and Africa

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Lobelia alsinoides is widely distributed in South and Southeast Asia. It is found in Kerala, Karnataka, Maharashtra, Andhra Pradesh, Tamil Nadu, Gujarat, Assam, Goa, Meghalaya, Manipur and West Bengal (Cook 1996).
It is annual herb and often very abundant in wet rice fields, roadside ditches and in other wet or inundated places (Cook 1996). Also common in disturbed moist deciduous forests and plantations (Sasidharan and Sivarajan 1996).
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Pl.validate
Lobelia alsinoiides
anual herb, winged branches
at Kanakeshwar, Alibag
29 Jan.2010



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Plant for ID 10/12/09 SMP1 – efloraofindia | Google Groups : 2 posts by 2 authors. Attachments (2)

Observed at foothills of Athirapally waterfalls Kerala Dec 2009.
A small herb with blue flowers.

This is Lobelia alsinoides



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Plant for ID SMP3 – 25/1/2011: Another small plant growing in a stream of water Near CME Lake Khadki Pune

Flower very small.



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Lobelia zeylanica L. : 6 posts by 2 authors. 4 images.

Forwarding 4 images of Lobelia zeylanica L. photographed from

Place : Vizhimala,
District : Palakkad,
State : Kerala.

Habit : Herbs

Habitat : Among grass abutting a wooded area.
Family : CAMPANULACEAE  Campanulaceae


Beautiful snap of Lobelia zeylanica



You may be right.



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3mm flower 17/9/12 SK3: Found this 17 cm (approx.) herb having 3 mm (approx.) flowers on the steps of a pond.

Species : UNKNOWN
Habit & Habitat : wild herb on pond step, 17 cm high, flowers 3 mm across
Date : 17/9/12, 9.48 a.m.

Place : Hooghly


It does look like a lindernia. And they are usually found in wet habitats.
This is just a guess. Let us wait for the experts to comment.

Yes looks like Lindernia sp.


It may be Lobelia heyneana (Campanulaceae)…
http://plantgenera.org/illustration.111034&language=English


I agree with …


Yes It should be a Lobelia sp., But L. heyneana or L. alsinoides ?

Lobelia alsinoides Lam.
Syn: Lobelia trigona Roxb.
Decumbent herbs, rooting from lower nodes, stem 3-winged. Leaves 1-2 x 1-1.5 cm, ovate-orbicular, apex obtuse, crenate, petiolate; petiole 3 mm broad; upper leaves sessile, elliptic, acute, smaller. Flowers in terminal raceme; sepals 5 mm long, lanceolate; corolla blue,10 mm long, upper 3 lobes obovate, lower 2 lobes narrower. Capsule 6 mm long, glabrous; seeds trigonous, brown.
Lobelia heyneana Schult.
Syn: Lobelia dichotoma Miq.; Lobelia trialata Buch.-Ham. ex D. Don; Lobelia zeylanica sensu Clarke var. walkeri.
Diffuse herbs, stem 3-winged, glabrous. Leaves 3 x 1.5 cm, obovate, apex obtuse or acute, base narrowly winged on the petiole, crenate-serrate, nerves 4 pairs; upper leaves sessile. Flowers in terminal, short raceme; sepals 4.5 x 1 mm, lanceolate, glabrous; corolla blue, 10 mm long, ventral lobe broader; lateral and dorsal lobes lanceolate; anthers 2.5 mm long, 2 anthers with penicillate black hairs at apex; style stout, curved; stigma with a ring of hairs below.
(From
Please compare.

Looks like Lobelia alsinoides 


It is very hard to select one between the L. heyneana & L. alsinoides. I can only say that leaves are not obovate and smaller than 3 cm. So, i select L. alsinoides Lam.


Thank you Sir for the ID of this plant, i found one at FoI – http://www.flowersofindia.ChickweedLobelia.html


 


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ID request-19102012-PKA1: Seen this small herb (around 8 to 10 cm) en-route Tungi Fort (Lonavala region).
Looks like Lobelia sp. (Family: Campanulaceae)?
Could this be Lobelia alsinoides??

Date/Time: 13-10-2012 / 09:00AM
Location: En-route Tungi Fort, Lonavala region.
Habitat: wild
Plant habit: Herb
Leaves sessile, alternate.


few days back , this plant was also uploaded on Indian flora, here is the link.
https://www.facebook.com/photo=3&theater


Yes …, plant looks similar to one posted by me.


Yes, It is Lobelia alsinoides Lam. (Campanulaceae). Ovary is inferior and lips are gamopetalous and biliped, is a good character for identification.


Yes it is Lobelia alsinoides



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Hooghly – Lobelia alsinoides Lam. : Attachments (5). 3 posts by 2 authors.
It took me hours to decide if it is Lobelia alsinoides Lam. or L. heyneana Schult; also had been identified in my earlier post.


I agree with your id …


I had sen this small herb on the way to Matheran via Chowk.
This herb was spotted near a water stream joining Morbe Dam,.
Bot. name: Lobelia alsinoides ?? (Please validate).

Good photographs …


Seen this small herb (around 8 to 10 cm) en-route Tungi Fort (Lonavala region).
Bot. name: Lobelia alsinoides 
(Family: Campanulaceae)
Date/Time: 13-10-2012 / 09:00AM
Location: En-route Tungi Fort, Lonavala region.
Habitat: wild
Plant habit: Herb

Leaves sessile, alternate

no doubt the flowers seem to match the descriptions in various Floras, but how about the leaves?
All my references speak about ovate leaves, crenate-dentate, or sub-orbicular etc etc. Illustrations of this plant also show something different, see for example Fl or Maharashtra by Dr. Almeida.
However in Flora of China we find

Leaves ovate to ovate-lanceolate, longer than broad, margin less prominently toothed.

6b subsp. hancei

Perhaps this is it.
Will experts please comment?


The extent it can be L. alsinoides is the same extent, if not more, it can be L. heyneana Schult, or even L. zeylanica L., not the FoC one but the FBI.iii.425, which bear some resemblance with Lobelia anceps.



 

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Campanulaceae & Gentianaceae Week: Campanulaceae : Lobelia alsinoides?? at Morbe Dam, Maharashtra: I had sen this small herb on the way to Matheran via Chowk. This herb was spotted near a water stream joining Morbe Dam,.
Bot. name: Lobelia alsinoides ?? (Please validate).


Appears to be Lobelia alsinoides Lam. as per images herein.



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ID Request- 24102012-PKA1: Attachments (8)

Seen this small herb at the wet grass land near Trombay, Mumbai. Looks like some Lobelia sp.??
Date/Time: 24-10-2012 / 10:15AM
Habitat: Wild (wet grass land)
Plant Habit: Herb ( approx. 5 to 15cm)
Branches rooting near the base,
Leaves almost sessile, ovate, acute, glabrous, leaf margin toothed,
Flowers small in size (approx 5 to 6mm).
Family: Campanulaceae


… it looks similar to Lobelia zeylanica to me. Wait for more authentication.


Thanks … for probable ID. It does look like Lobelia zeylanica. Have a look at following link…
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200022985


I think these are closer to images at Lobelia alsinoides Lam. rather than those at Lobelia zeylanica 



 

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Seen this small herb at the wet grass land near Trombay, Mumbai.

Could this be Lobelia zeylanica???
Date/Time: 24-10-2012 / 10:15AM
Habitat: Wild (wet grass land)
Plant Habit: Herb ( approx. 5 to 15cm)

Branches rooting near the base,
Leaves almost sessile, ovate, acute, glabrous, leaf margin toothed,
Flowers small in size (approx 5 to 6mm).

Family: Campanulaceae


I think it is Lobelia zeylanica


I think these are closer to images at Lobelia alsinoides Lam. rather than those at Lobelia zeylanica



 

 

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Lindernia hyssopoides or Dopatrium lobelioides?-ID Please : 12 posts by 4 authors. Attachments (5)

Which one is it?. Truly bad pictures i admit. Your help please.

Pictures taken at Aambyvalley Rd.,Lonavala,Pune in Nov.16

Thanks, … Pl. check in efi site.

I think it is some Lindernia species, even oppositifolia but can’t place it for sure

Pl. check


It is certainly not a Linderna sp.   I am sure it is a Lobelia sp.  Not sure about the species id.
I have a similar Lobelia species (Lobelia zeylanica) posted on Flowers of India site
Kindely see the link below
http://www.flowersofindia.CeylonLobelia.html

many, many thanks … for the id. My pictures do not help much in Id but after searching Eflora site I think it may be L.alsinoides. validation required..
besides it was found near this place.

Thanks, … I agree with your id as per images at Lobelia alsinoides Lam.



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Lobelia alsinoides(Campanulaceae) from Morni hills.. : 2 posts by 2 authors. Attachments (4)
Here am uploading some mages of Lobelia alsinoides taken on September 2018..


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Please identify the weed plant.
Name of plant:
Location:          near Reserve Forest, Chathamattom, Ernakulam District, Kerala PIN:686671
Date:.               25.11.2020, 3pm
Altitude:           1700fsl
Habitat:            wild moisture
Plant habit:      erect weak steam annual
Height:             05 inches
Leaves:            side jaws apex
Flower:             diameter:04mm, blue,  non fragrant

Dopatrium or Limnophila sp.?


Lobelia alsinoides


Please find the habitat image.  In Kerala plants.in the Malayalam name is കാക്കപൂ (Kakkapoo).  1 image


It’s only


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Please identify the herb?:
Habitat- Pond side

Habit- Herb
Loc- kota Rajasthan
Date- 03/02/2022

Lobelia alsinoides Lam.


Yes, …


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Campanulaceae: Lobelia alsinoides Lam.: 2 images.
location/date (both): Tropical Forest Research Institute, Jabalpur, Madhya Pradesh, October 1994


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References: