USA (Alabama, Florida, Louisiana, Mississippi, Texas), Mexico (Aguascalientes,
Baja California Sur, Campeche, Coahuila, Colima, Ciudad de Mexico, Durango,
Guanajuato, Guerrero, Hidalgo, Jalisco, Mexico State, Michoacan, Morelos, Nuevo
Leon, Oaxaca, Puebla, Queretaro, Quintana Roo, San Luis Potosi, Sinaloa, Sonora,
Tabasco, Tamaulipas, Veracruz, Yucatan, Zacatecas), Venezuela (Distrito
Federal), Bahamas, Cayman Isl., Cuba, Hispaniola, ?Belize, Midway Isl. (I),
Australia (I) (Queensland (I)), Java (I), Hawaii (I) (Midway Isl. (I), Kauai
(I), Oahu (I), Molokai (I), Lanai (I), Maui (I)), India (I) (Maharashtra (I),
Uttar Pradesh (I)),
Taiwan (I)
as per Catalogue of Life;
 
Straggler Daisy, Prostrate Lawnflower, Hierba del caballo, Horseherb;
Here are features which will never fail you
1. Calyptocarpus has low growing, procumbent to ascending, mat forming habit often rooting at nodes, rarely rising more than 15 cm,
Synedrella tall erect habit up to 80 cm tall.
2.
Leaves the most crucial are not longer than 3 cm, pale green, thinner, faint 3 basal vein and broadly ovate. In contrast leaves of Synedrella are longer than 3 cm, dark green in colour, more prominent basal veins and ovate to elliptic in shape.

Apart from trailing habit and smaller leaves I don’t find any consistent character. Both (Calyptocarpus vialis and Synedrella nodiflora) may or may not have three basal veins, heads may be more than one in both. 
 
Synedrella: Plants annual, erect or ascending, not rooting at nodes; heads aggregated; disc florets 4-12; cypsellae of ray florets with lacerate winged margins.
Calyptocarpus: Perennial, prostrate or decumbent, rooting at nodes; heads solitary at each node; disc florets 10-20; cypsellae of ray florets not winged   

Calyptocarpus vialis

Synedrella nodiflora  

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Calyptocarpus vialis- right one & Synedrella nodiflora- left one

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Calyptocarpus vialis- left ones & Synedrella nodiflora- right ones

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Confusion between Calyptocarpus vialis and Synedrella nodiflora solved (for me atleast)-GSSEP05/123 : 4 posts by 4 authors. Attachments (9)

Confusion between Calyptocarpus vialis and Synedrella nodiflora solved (for me atleast).
I was lucky to find both on same day in Bangalore and appreciate crucial differences between two.

Perhaps no two plants are as confused by most of us as these two. Many differentiate the two by prominent three veins from base, but they occur in both although thinner in Calyptocarpus. Heads of two look similar, involucre bracts of Calyptocarpus are 4 in two whorls, In Synedrella they range from 2-5 and may be in one or two whorls. Achenes are with two diverging awns in Calyptocarpus, in Synedrella most florets (disc) have similar 2-awned achenes although few (fertile ray) have achenes with scales (which you are likely to miss. 
Here are features which will never fail you
1. Calyptocarpus has low growing, procumbent to ascending, mat forming habit often rooting at nodes, rarely rising more than 15 cm, Synedrella tall erect habit up to 80 cm tall.
2. Leaves the most crucial are not longer than 3 cm, pale green, thinner, 
faint 3 basal vein and broadly ovate
. In contrast leaves of Synedrella are longer than 3 cm, dark green in colour, more prominent basal veins and ovate to elliptic in shape.
3. All heads in Synedrella are in sessile clusters, but in Calytocarpus there are always a few on long peduncles bearing solitary head, in addition to several sessile in cluster. 
Here are some photographs for illustration.
 


Thank you very very much … for this clarity.

Will check my uploads at flickr and eFI soon and do any necessary correction.


Thanks a lot … i used to wonder for elongated stalk of inflorescence, in some Synedrella! but i was looking Calyptocarpus– which was not taught to me.

Wonderful experience!


In … post at Synedrella nodiflora :: Yeoor Hills, part of SGNP :: 29 DEC 19 , one can see a few flowering heads on long peduncles. So the following portion of the key has to go away:
All heads in Synedrella are in sessile clusters, but in Calytocarpus there are always a few on long peduncles bearing solitary head, in addition to several sessile in cluster”

Here are characters I have uploaded on Facebook Groups last month
Calyptocarpus vialis: prostrate perennial herb, rooting at nodes; leaves ovate, 2-4 cm long; heads usually solitary on up to 15 mm long peduncle; heads 6-7 mm long, achenes 3-4 mm long, oblanceolate, with two spreading awns in ray florets as well disc florets.
Synedrella nodiflora: erect or ascending annual herb; leaves elliptic, 3-10cm long, heads usually 2-4 together, sessile or subsessile; heads more than 1 cm long; achenes dimorphic, those of disc florets like Calyptocarpus vialis but narrower, those of ray florets with triangular scales.
I don’t find any distinctly pedunculate head in … upload, they may be subsessile.

Based on above discussion and comparative images I think the upload by … as Synedrella nodiflora is actually Calyptocarpus vialis, upload by … is alright.


Thanks, … Pl. see the last image by … at Synedrella nodiflora :: Yeoor Hills, part of SGNP :: 29 DEC 19


… the last image at that … requests you to see in my post: Synedrella nodiflora :: Yeoor Hills, part of SGNP :: 29 DEC 19 is clickable and will lead to photopage in flickr. Further clicking on the photo on that page will zoom it and you will be able to pan the photo for details.


I think you may have to re-asses your images from Yeoor Hills. Whereas your image on Flowers of India seems alright, the images here show ray florets on longer stalks, plus longer peduncle as pointed out by … Both eFlora of China and eFlora of North America  clearly mention sessile to subsessile heads in this species. Yours does not look like Calyptocarpus vialis as leaves are clearly different, more like Synedrella nodiflora.  


Thanks very much …,
Yes, images from Yeoor Hills posted at Synedrella nodiflora :: Yeoor Hills, part of SGNP :: 29 DEC 19 are labelled as Synedrella nodiflora. It is just as you are asserting. I hope there is no confusion.


Thank you …,
You are right. The prostrate hairs on the leaves seen in the picture by …, is another indicator that it could rather be Calyptocarpus vialis. The species is corrected on the site now:
On the other hand, the two images sent by you to FOI, as Calyptocarpus vialis (attached here), appear to be of Synedrella nodiflora.

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request for identification – 03012011PC1: Are all the five photos those of Calyptocarpus vialis? Found growing wild in JNU campus.
Very small herb, growing to a height of 12 cm. Mostly procumbent but some erect branches are present.
In the first three photos two heads are present together and the serrations in the leaves are not distinct. In the last two photos (from a different patch) heads are smaller, appear to be present singly and the serrations are more distinct. 



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efloraofindia:”For Id 19092011MR1’’ peculiar yellow flower with 4 petals Pune:   Request for identification Date/Time-Sep 2011

Location- Place, Altitude, GPS-Pune
Habitat- Garden/ Urban/ Wild/ Type-I do not know garden/wild
Plant Habit- Tree/ Shrub/ Climber/ Herb-  herb
Height/Length- hardly 5 cms tall there were many such plants near each other each with a single flower at the tip
Leaves Type/ Shape/ Size-green
Flowers Size/ Colour/ Calyx/ Bracts- yellow  with 4 petals about 2cms across
Fruits Type/ Shape/ Size Seeds-Not seen

This is Synedrella vialis (Less.) Gray its a small prostrate herb, while Synedrella nodiflora (L.) Gaertn. is a erect herb. 


May be the following link of a previous discussion in our group would be helpful. https://groups.google.com/group/indiantreepix/browse_thread/thread/a8…


I think the two species belong to two different genera
Calyptocapus vialis Less (syn: Synedrella vialis (Less) A. Gray; Calyptocarpus tampicanus (DC.) Small): straggling daisy
Synedrella nodiflora (L.) L. Gaertn (syn: Verbesina nodiflora L.):
Here is the key to differentiate the two genera (Based of Flora of Taiwan and Flora of North America) Synedrella<http://efloras.org/florataxon.aspx?flora_id=100&taxon_id=132087>
Synedrella: Plants annual, erect or ascending, not rooting at nodes; heads aggregated; disc florets 4-12; cypsellae of ray florets with lacerate winged margins.
Calyptocarpus: Perennial, prostrate or decumbent, rooting at nodes; heads solitary at each node; disc florets 10-20; cypsellae of ray florets not winged 

… I found that it is also called Lonestar flower quite an apt name. 



June 2012

Another sprawling wild herb with triangular leaves and yellow flowers at Pune

Requesting to validate if this is Calyptocarpus vialis

Id help- link


Thanks … for uploading both, often confused plants.

Calyptocarpus vialis from Delhi, I hope all are correctly identified.

I could not distinguish between Calyptocarpus vialis and Synedrella nodiflora…so similar they are..if anyone has any distinguishing features, please share..


The flowersofindia site mentions A prominent difference is that the leaves of Cinderella Weed have 3 parallel veins http://www.flowersofindia.net/catalog/slides/Straggler%20Daisy.html Also I found the pdf file attached helpful to understand the differences. You will have to scroll 6 pgs down to see these plants in the file.


Thanks Sir for the pdf file, got few points..clarity needs actual examination..hope to find them both soon..


Kindly highlight the significant differences, which would be helpful for all.


Apart from trailing habit and smaller leaves I don’t find any consistent character. Both may or may not have three basal veins, heads may be more than one in both. Frankly from photographs I am never confident about these two species.


Aug 2012

A sprawling wild herb with triangular leaves and yellow flowers at Pune

Requesting to validate if this is Calyptocarpus vialis

Id help- link


I had identified all the posted pics as Synedrella nodiflora… hereby enclosing different pics from Chakrata, Dalhousie and Morni (name of the place suffixed after every picture)…. I was sure for them to be S. nodiflora, until I had seen Calyptocarpus vialis…..kindly validate/correct..

I am confused.


For me thie photographs look like Calyptocarpus vialis. As our expert  … has said it is always very confusing. Nevertheless, the flowers are very small and petioles are also almost nil in Synedrella nodiflora.


 

 

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for id. request BRS 521 : Attachments (2). 5 posts by 4 authors.
Pl. find the attached file contain photos for id. confirmation.

Location: IFGTB Campus, Coimbatore
Date: 08.11.2013
Habitat: Garden
Habit: Herb


It may be Calyptocarpus vialis (= Synedrella vialis).


Yes, this is Calyptocarpus vialis Less. [Synedrella vialis (Less.) A.Gray; Straggler daisy], from NW.Himal., Uttk., UP, Raj., Mah., Karn. and Ker.


Requesting to please ID this shrub captured in Lalbagh, Bangalore in November 2013.


Looks like Calyptocarpus vialis (Straggler daisy) (syn. Synedrella vialis). Some times difficult to distinguish the species from Synedrella nodiflora. Hence carefully check the characters and then decide the species..


Thank you … again and thanks to … as well for the ID…



 

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Asteraceae Herb for id from Chakrata:: NS June 21 : 2 posts by 2 authors. Attachments (4).

This sub-erect herb was shot from Chakrata area..
I am inclined to place this under Calyptocarpus vialis (until I came to know of this taxon, I treated this as nothing else but Synedrella nodiflora, but now I am confused)..
Please give your opinion..


I think yes.


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HP, Oct 2014 :: Requesting ID validation :: ARKJAN-23/23 : 4 posts by 2 authors. Attachments (5).  

Requesting to please validate ID of this ground covering plant from the Kangra fort near Dharamshala, HP in October 2014.
I hope this is Calyptocarpus vialis.


It is straggler’s daisy/ horse herb: Calyptocarpus vialis (syn Synedrella vialis, Synedrellopsis grisebachii ).


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ID request 131015SG : 5 posts by 3 authors. Attachments (4)
Requesting ID of this weed, 6-9” height, Photo taken on 13Oct15 at Solapur, Maharashtra.


Please check for Calyptocarpus vialis or C.biaristatus. 


efi page on two confusable species: Calyptocarpus vialis or Synedrella nodiflora 


this could be Calyptocarpus vialis Less.

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Wild Plant For ID : Asteraceae : Nasik : 18NOV15 : AK-9 : 09/09 : 3 posts by 2 authors. Attachments (8)
With reference to your postConfusion between Calyptocarpus vialis and Synedrella nodiflora’, I found these tiny plants in my Nasik home garden.
These had a mat forming habit, hardly a few inches from the ground.
Could these be Calyptocarpus vialis?
For validation please.


efi page on Calyptocarpus vialis with differences from Synedrella nodiflora  


Long peduncle is there in IMG_9567.jpg, should not be Synedrella nodiflora as per efi key.

 

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Asteraceae ID : 5 posts by 3 authors. Attachments (1)

Please ID the Asteraceae Plant
Place – Mohali, Punjab
Date of Click – 29th June, 2016
Temperature- 37degrees
Humidity – almost 75%


Please compare with Synedrella nodiflora..


Possibly Synedrella nodiflora.


I think closer to Calyptocarpus vialis Less. as per comparative images at  Calyptocarpus


Thank you …, after comparing images with Calyptocarpus, i also feel that the images sent by me are closer to Calyptocarpus rather than Synedrella.


 

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ID please, Asteraceae: 6 posts by 3 authors. 1 image.
Please Identify the plant

Yellow flower, Asteraceae, Collected from seashore, Thrissur, Kerala

Pl. check 

Calyptocarpus vialis  ??

I also feel close to images at Calyptocarpus vialis Less.


 

 

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in Delhi in Parks and neglected gardens- Aug’09?; 30/05/2010– Nehru Park,  New Delhi; 060610vks2 – efloraofindia | Google Groups ID for 200809GS2 – indiantreepix | Google Groups



 
References:

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