Common names Prostrate spurge, prostrate sandmat, red euphorbia
 

Three prostrate species are rather close. I found the following keys in Flora of India:

30 a. Plants prostrate, only branches or tips of branches decumbent; cyathia solitary, paired or 3 together … 31
b. Plants erect, decumbent or ascending; cyathia more than 3 in glomerules … 33
31 a. Stems and branches pinkish grey; mature capsules remaining within the involucre … 32. E. thymifolia
b. Stems, branches and leaves green, glaucous-green, purplish green or blackish green; mature capsules protruding out from the involucre 32
32 a. Stems, branches and leaves blackish or purplish green; capsules acutely keeled, with ciliate hairs confined to keels only … 26. E. prostrata
b. Stems, branches and leaves green to glaucous-green; capsules obtusely keeled, glabrous or sparsely hairy all over the surface … 13. E. heyneana
33 a. Plants glabrous; leaves linear-lanceolate, 3 – 6 mm wide, glabrous to sparsely pilose … 17. E. hyssopifolia 

Prostrate herb with opposite leaves and cyathia arising on short microphyllous branches, gland appendages minute, leaf base oblique. 

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Euphorbiaceae Week: Euphorbia prostrata from Delhi: Euphorbia prostrata Aiton, Hort. kew. 2:139. 1789
syn: Chamaesyce prostrata (Aiton) Small
Prostrate herb with opposite leaves and cyathia arising on short microphyllous branches, gland appendages minute, leaf base oblique.
Common in Delhi in Lawns, wastelands and cultivated fields. 
Common name: Prostrate sandmat


Thank you Sir for the pictures and the cyathia explanation. Perhaps those interested may compare the parts with the Euphorbia diagram I have uploaded a day  or two back from D. H. Lawrence’s book. Sir, would it correct to say that the cyathia are on axils of leaves or are axillary ?

Anisophyllum prostratum (Aiton) Haw.
Aplarina prostrata (Aiton) Raf.
Chamaesyce malaca Small
Chamaesyce prostrata (Aiton) Small
Chamaesyce villosior (Greenm.) Millsp.
Euphorbia callitrichoides Kunth
Euphorbia malaca (Small) Little
Euphorbia perforata Guss.
Euphorbia prostrata var. caudirhiza Fosberg
Euphorbia prostrata var. vestita Engelm. ex Boiss.
Euphorbia ramosa var. villosior Greenm.
Euphorbia tenella Kunth
Euphorbia trichogona Bertol.
Tithymalus prostratus (Aiton) Samp.

In (not on) leaf axils or axillary are both correct, latter preferred.


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Euphorbia prostrata from Delhi: Euphorbia prostrata Aiton, Hort. kew. 2:139. 1789

Prostrate herb with often reddish stem, small opposite leaves, 4 glands without appendages and minute about 1.5 mm fruits, ciliate along edges but smooth on faces.
Common in Delhi along roadsides usually on barren sandy ground. 
Common names Prostrate spurge, prostrate sandmat, red euphorbia
.., perhaps at least photograph with fruit (or one more) can be added to FOI website



Euphorbiaceae Fortnight: Euphorbia prostrata from Delhi-GS-38 : Attachments (5). 7 posts by 4 authors.

Euphorbia prostrata Aiton, Hort. kew. 2:139. 1789
prostrate herb with often reddish stem, small opposite leaves, 4 glands without appendages and minute about 1.5 mm fruits, ciliate along edges but smooth on faces. Common in Delhi along roadsides usually on barren sandy ground.
Common names
Prostrate spurge, prostrate sandmat, red euphorbia.


In Euphrobia prostrata the fruits burst open the cyathium and ripen outside it while in E. thymifolia the fruits mature inside the cyathium. Now you decide.


Thanks for a good lead … I will check my other photographs also.

Both Flora of china and Flora of Pakistan report fruits are hairy only along keels, uniformly hairy in E. thymifolia.


Sending two close up photographs for better decision


Yes, this is certainly E. prostrata. Notice the ciliate hairs on the three keels of the fruit, which are otherwise glabrous at other faces.


Thanks Sir for this common, yet critical upload… thanks … and … for telling the easy way to differentiate two confusing taxa…



 

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Euphorbiaceae Fortnight : 01112013MR01 from Pune for ID-MR01 : Attachments (4). 3 posts by 2 authors.

June 2012, Pune
requesting identification of this wild herb at Pune


Should be Euphorbia prostrata…


Thank you for the Id


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EUPHORBIACEAE FORTNIGHT:: Euphorbia prostrata from Panipat NS-59 : Attachments (7). 2 posts by 2 authors.
Though I cannot be fully sure, this very common lawn species of Euphorbia seems to me like E. prostrata… please finalize the id..


Yes, this is Euphorbia prostrata Ait.


 

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Euphorbiaceae fortnight :: Euphorbia sp. from Assam, KD ID18 :  4 correct images as above. 2 posts by 2 authors.
I have collected these two spp. of Euphorbia, Euphorbia sp. (Images A-1 to A-6) and Euphorbia prostrata (Images B-1 to B-4). from the same locality(distance of one sp. to other sp in case of habitat is not more than 30 ft). After observation of its habit, cyathium (under microscope) etc. found following characters. You have identified Images (B-1 to B-4) as E. prostrata. But I could not identify the other sp. So please ID the other sp.

Characters of Images A-1 to A-6 (Euphorbia sp.)

Characters of Images B-1 to A-4 (Euphorbia prostrata)

1.Branches are not completely prostrate.

1.Branches are more or less prostrat.

2. Stem are more reddish.

2.Stem are less reddish.

3.The fruit bursts outside the cyathium

3.The fruit bursts outside the cyathium

4. Outer surface of involucre is not hairy

4. Outer surface of innvolucre is hairy.

5. The ovary is larger than ovary of E. prostrata

5. Ovary is smaller than UD Euphorbia sp.

6. Long ciliate hairs are prominent at the base of Keel.

6. Ciliate hairs are prominent through out the keel.


Images A.1 & A.2 are out of focus the ovaries are not clearly visible. It may be either E. thymifolia or E. prostrata. Not sure.

Images A.3, A.4, A.5 & A.6 are definitely Euphorbia prostrata Ait. Notice the ciliate hairs on the keels of ovary, which are otherwise glabrous on faces.

B.1, B.2 & B.3 are mixture of two species. The small-leaved one is most probably E. thymifolia L. The ovaries seem to be pubescent all over. The large-leaved ones are probably E. hirta or E. hypericifolia

B.4 is E. thymifolia L..

 

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EUPHORBIACEAE FORTNIGHT:: Euphorbia prostrata? from Kaithal NS-49 :  Attachments (4). 6 posts by 4 authors.

Please help me to identify this prostrate Euphorbia which is quite commonly met with in the field..
please correct me if required, I could identify this as Euphorbia prostrata..
Present shots recorded from my village in Kaithal, Haryana..


Euphorbia prostrata


Yes, this is Euphorbia prostrata.


 

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SK227DEC07-2016:ID : 10 posts by 4 authors. Attachments (8)
Location: Chobhar Height, Kathmandur , Nepal
Altitude:  4600 ft.
Date: 15 Septemberr 2016

Some Euphorbia species.


Euphorbia prostrata Aiton (accepted name)  ??
http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=242321502   


Yes, this is Euphorbia prostrata Ait., which is a valid and legitimate name for this common species in India.


Thank you …! Nepali name: कनिके घाँस Kanike Ghaans


 

 

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Euphorbia prostrata Aiton : 7 posts by 3 authors. Attachments (6)

Location: Dolakha, Nepal 
Date : 5 September, 2017
Elevation : 5600 ft


This is Euphorbia prostrata Aiton.
The long hairs along the keels of fruits is very characteristic of this species.  

Attached images may be Euphorbia heyneana Spreng. Please validate. My earlier post (/species/a—l/e/euphorbiaceae/euphorbia/euphorbia-thymifolia) 
Date :08.11.2013
Location: Kamrup district, Assam
Family : Euphorbiaceae


The plant is either Euphorbia heyneana Spreng or E. prostrata Ait. depending on the nature of fruits, which are not visible in the photos.
In E. prostrata the fruits are acutely keeled with long ciliate hairs restricted to the keels only, whereas in E. heyneana the fruits are obtusely keeled and hairy throughout the fruit and not restricted to the keels.
Please check the mature fruits.


To me it looks more closer to E.prostrata.


Fruits visible in the available photos. Definitely E. prostrata based on the hairs restricted to the fruit keels.


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ID : Chamaesyce thymifolia from Guwahati : Attachments (2). 4 posts by 2 authors.

Is it Chamaesyce thymifolia (L.) Millsp.(= Euphorbia thymifolia L.)?. Please confirm the ID.
Time of Collection : 06/10/2012
Location : Bara Bazar, Pandu, Guwahati 12(Assam)
Habit : Small herb


… It may be either E. thymifolia or E. prostrata. Not sure.


Almost certainly E. prostrataNote the slightly less elongated leaves and shorter hairs.  


 

 

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Euphorbia prostrata Aiton is a common prostrate herb in Pantnagar.
It is quite successful in colonizing narrow cracks in cement floors.


Euphorbia prostrata and E. thymifolia are very close. Without seeing female flowers and fruits it is impossible to identify them.


Definitely E. prostrataNote how the hairs are restricted to the fruit keels and that they are not appressed to the fruit surface. Also, the fruits are well exerted from the cyathia at maturity.


 

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2 posts by 2 authors.
Attached are pictures of Euphorbia prostrata from Mumbai in June 2013.


I am unable to detect from the photos whether it is Euphorbia prostrata or E. thymifolia.


Definitely E. prostrata. The fruits of E. thymifolia are held closer to the cyathia at maturity.


plants from Virat nagar

B.Name- Chamaesyce serpyllifolia

Place-Virat nagar, Jaipur

Photo Taken- 5/5/2009


Is it also known as Euphorbia thymifolia, …?


Most probably you are right, Let it be ID other experts.


Euphorbia prostrataC. serpillifolia is a North and South American species.


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Euphorbia Herb for ID : Bangalore : 01OCT20 : AK-02 : 10 posts by 4 authors. Attachments (1)

A tiny herb growing wild.


Euphorbia thymifolia


May I request you to pl. post high resolution image to check the details.


A similar one from Nasik, had been identified as Euphorbia heyneana by …


Three prostrate species are rather close. I found the following keys in Flora of India:

30 a. Plants prostrate, only branches or tips of branches decumbent; cyathia solitary, paired or 3 together … 31
b. Plants erect, decumbent or ascending; cyathia more than 3 in glomerules … 33
31 a. Stems and branches pinkish grey; mature capsules remaining within the involucre … 32. E. thymifolia
b. Stems, branches and leaves green, glaucous-green, purplish green or blackish green; mature capsules protruding out from the involucre 32
32 a. Stems, branches and leaves blackish or purplish green; capsules acutely keeled, with ciliate hairs confined to keels only … 26. E. prostrata
b. Stems, branches and leaves green to glaucous-green; capsules obtusely keeled, glabrous or sparsely hairy all over the surface … 13. E. heyneana
33 a. Plants glabrous; leaves linear-lanceolate, 3 – 6 mm wide, glabrous to sparsely pilose … 17. E. hyssopifolia 

Based on above, can it be E. prostrata ?


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Attachments (1)- 3 mb.


Euphorbia prostrata. Note exerted fruits and hairs restricted to angles of fruits.



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efloraofindia:”For Id 20112011MR2’’ ?Euphorbia prostrata Pune: Kindly validate this herb growing wild at Pune
?Euphorbia prostrata
Nov 2011
Height/Length- Prostrate herb with branches about 15 cms long tinged purplish
Leaves –blade ovate, base unequal, one side cuneate, the other side rounded, apex rounded, margins shallowly toothed, glabrous above
Inflorescence –terminal and axillary cluster of flowers, on short leafy shoots; with a barrel-shaped involucre, with very small pink appendages
Fruits –exerted from the cyathium and pubescent in lines showing purplish and hairy sutures


Yes, it is Euphorbia prostrata


Yes, it is E. prostrata.
Tiny herb growing between the garden tiles in our home garden at Nasik.


Yes, it is Euphorbia heyneana Spreng.


May I request you to pl. post high resolution images as it may turn out to be Euphorbia prostrata as per discussions at Euphorbia Herb for ID : Bangalore : 01OCT20 : AK-02 


Here they are..
Attachments (2)


Yes, this appears to be Euphorbia prostrata


… has identified this earlier as Euphorbia heyneana, in this same thread.
Please check.


Yes, I know. 

But that is not the correct id.


Fine.


Lot of your ids may be wrong though identified by experts, simply because of your posting of long shots without any close up details.


Thanks a lot. You are doing a great job.


Thanks, …, Misidentifications by experts are possible when there are closely related species and posted images do not show enough details.


Yes, completely agree with you. 


Small Herb for ID : Euphorbia : Nasik : 121212 : AK-3: Very tiny herb growing wild in the garden between cracks in the cement tiles.

Euphobria species.
Id please.


This is Euphorbia heyneana. 

Euphorbia prostrata as per high resolution images and discussions at Euphorbiaceae Fortnight : Euphorbia heyneana : Nasik : 061113 : AK-13

  

References:

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