Neanotis tubulosa

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Annual, slender herb, Leaves subsessile, shortly petioled, ovate, flowers purplish white in terminal or axillary clusters.
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Valparai: Rubiaceae herb for identification 280812MK03:

Please help me to identify this small herb found on a foot pathway in an estate in Valparai of western ghats.
Height: 15-20 cm spread
Leaf: pubescent; 3cm long
Flower: white; 0.7cm long
Date: 26 Aug 2012
Place: Valparai, TN
Alt.: 930 m asl

Seems to be Dentella sp


Could this be Dentella serpyllifolia?


You should check under the genus Neanotis


It looks like a Neanotis species to me too.


Anotis quadrilocularis Benth


is there any other synonym for Anotis quadrilocularis (syn. Neanotis quadrilocularis)?  I think it is not earlier reported from Tamil Nadu, so may I ask you the literature in which this plant is described?


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ANMAR33/53 Please identify this herb : 9 posts by 5 authors. Attachments (9)

Family: Rubiaceae
Date: September 2014
Place: Charmadi Ghat, Karnataka

Habit: Herb
Habitat: Riparian


Most probably an Oldenlandia sp.


Oldenlandiaspecies in eFloraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ Biotik/ efloras/ books etc., where ever available)


It look like the species of Neanotis


I am not sure, please check probability of Neanotis species. Since fruits seem to be 4 locular N. quadrilocularis (Thwaites) W.Lewis?


May be Hedyotis neesiana Arn. (= Oldenlandia nitida (Kurz) Gamble), reported from the collection locality in Flora of Hassan DT; another closely related is Oldenlandia auricularia, where the flowers are shortly pedicellate.


This is what you have for Hedyotis neesiana Arn. Check the calyx and corolla ratio.
Here the corolla tube is significantly longer, and calyx teeth are cuspidate, seggesting characters of Anotis quadrilocularis Thwaites.
The Hedyotis-Oldenlandia-Anotis is my favourite, because I can get away very easily!

Corolla in the attached pictures doesn’t look like having 1 to 1.5 mm tube with white flowers!

I agree that O. auricularia and Hedyotis neesiana may not be possible.
What I have for Neanotis quadrilocularis is that style is 3-4 fid which, albeit is blurry, can be made out in the attached photo.

I fail to make out style feature in the attached images. A detail account of N. quadrilocularis can be found in http://www.biology.sc.chula.ac.th/TNH/archives/v14_no2/101-111%20Khanit%20edit3.pdf. Somewhere I read calyx teeth are cuspidate, but now I fail to find that document.

However, the ID was suggested by me partly on reading various docs and partly based on efi thread. If you think it is something else it is quite possible.


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[EfloraofIndia_Rubiaceae week_090212PD03_Neanotis tubulosa_Flora of Odisha]: 2 images.
sharing the images of Neanotis tubulosa taken from Mahendragiri hills

Name: Neanotis tubulosa
Habit: Annual herb
Habitat: Wild, Open grasslands in Moist and shady places
Place of collectiuon: Mahendragiri hills, Gajapati district, Odisha
Altitude: 1100 m above msl
Annual, slender herb, Leaves subsessile, shortly petioled, ovate, flowers purplish white in terminal or axillary clusters.

Interesting (high altitude) Neanotis … Many thanks.
I do not know if it is distributed in the Western Ghats.


it has distribution in Peninsular India and Sri Lanka. Thanks for appreciation.


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780 ID wild herb: 14 high res. images.
Please ID wild herb,
Location: near Vannappuram Thodupuzha Idukki Kerala INDIA
Altitude: 1800fsl
Flower date: 03AUG2025, 04.35pm
Habitat: wild moisture rocky misty windy highland
Plant habit: micro erect unbranched epilithic herb, weak fleshy cylindrical stem 03mm base diameter, annually
Height: 07cm
Leaves: opposite elliptical acute flexible hairy, size upto: 03×02cm
Flower: axillary buds, whitish violet, non fragrant, diameter:02.5mm
Fruit: capsule green into brown globular lobate diameter:03.5mm
Seed:


Lindernia crustacea


No matches


Please check Neanotis.


Yes, it is Neanotis dear …, thank you very much for the Genus ID of my plant.

Sharing more images.


I checked all the species in FoPI, with distribution in Kerala.
I think it is Neanotis tubulosa (syn. Anotis quadrilocularis (Thwaites) Hook.f.) (Currently images not being displayed due to update work, thus giving links below) as per
https://groups.google.com/g/indiantreepix/c/t463Xt5hgbA
Also matches with POWO specimen


Yes, it is Neanotis tubulosa.
Thank you very much for ID my plant with confirmation link.



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References:
http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:757323-1http://keralaplants.in/keralaplantsdetails.aspx?id=Neanotis_tubulosahttp://flora-peninsula-indica.ces.iisc.ac.in/herbsheet.php?id=8546&cat=7
Updated on August 20, 2026

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