Conyza bonariensis (L.) Cronquist, Bull. Torrey Club 70 1943. (syn: Aster ambiguus (DC.) E.H.L.Krause; Conyza ambigua DC.; Conyza crispa (Pourret) Rupr.; Erigeron bonariensis L.; Erigeron linifolius Willd. ....); fleabane, hairy horseweed, flax-leaf fleabane, wavy leaf fleabane, rough conyza, Argentine fleabane; 1a. Plants usually shorter than 50 cm; lateral branches equalling or overtopping main axis; heads 5-8 mm across; ray corolla shorter than 0.3 mm; fruiting head 8-10 mm across, pappus 3-4 mm long; lower leaves linear-lanceolate, upper linear ........... Conyza bonariensis 1b. Plants usually taller than 50 cm; lateral branches shorter than main axis; heads less than 6 mm across; lower leaves lanceolate or oblanceolate, upper linear- lanceolate .......... (2) 2a. Ray corolla shorter than 0.3 mm; heads 4-6 mm across; ruiting head 7-8 mm across, pappus 3-4 mm long; lower leaves oblanceolate, upper linear-lanceolate; plants densely hairy, phyllaries short hairy ......... Conyza sumatrensis 2b. Ray corolla 0.3-1 mm long; heads 2-4 mm across; fruiting head 5-6 mm across, pappus 2-3 mm long; leaves lanceolate; plants sparsely hairy; phyllaries with few long hairs ............ Conyza canadensis
Conyza bonariensis from my fields Lohari Panipat: common small herbaceous weed in roadside areas and along wheat fields
Small flowered conyza species: 1. Conyza bonariensis: Conyza bonariensis (L.) Cronq., Bull. Torrey Bot. Club. 70: 632. 1943 syn: Erigeron bonariensis L; Erigeron linifolius Willd. It is quite common to find small flowered (rather small headed) species of Conyza throughout India along roadsides and wastelands. They are much more commoner in temperate climates. During my last visit to Kashmir I found that larger headed of the two, more robust, long hairy and low growing Conyza bonariensis (syn: Erigeron linifolius) had come in flowering and more delicate with smaller heads, taller with branching in the upper part Conyza canadensis came up to flowering towards end of June. This year with extended stay in Kashmir i found that by middle of july another very tall often growing to the height of 1-2 m, much more robust plant had come up and started flowering, but by the time C. canadensis had almost started to disappear. Initially I thought this to be late flowering population of Conyza canadensis, but when It came to flowering in August I discovered that it was very distinct from Conyza canadensis in robust habit, broader leaves, larger heads and phyllaries with much shorter hairs. It was finally identified as Conyza albida now correctly known as Conyza sumatrensis, a species often confused with the other two. Here is the key to separate them 1a. Plants usually shorter than 50 cm; lateral branches equalling or overtopping main axis; heads 5-8 mm across; ray corolla shorter than 0.3 mm; fruiting head 8-10 mm across, pappus 3-4 mm long; lower leaves linear-lanceolate, upper inear.............................................................................................................Conyza bonariensis 1b. Plants usually taller than 50 cm; lateral branches shorter than main axis; heads less than 6 mm across; lower leaves lanceolate or oblanceolate, upper linear-lanceolate............................................................ (2) 2a. Ray corolla shorter than 0.3 mm; heads 4-6 mm across; fruiting head 7-8 mm across, pappus 3-4 mm long; lower leaves oblanceolate, upper linear-lanceolate; plants densely hairy, phyllaries short hairy..........................................................................................................................................................Conyza sumatrensis 2b. Ray corolla 0.3-1 mm long; heads 2-4 mm across; fruiting head 5-6 mm across, pappus 2-3 mm long; leaves lanceolate; plants sparsely hairy; phyllaries with few long hairs..............................................Conyza Canadensis
efloraindia: 012111 BRS 243: Pl. find the attached file contain photos for id. request. Location: NBNP Garden, Anaikatti, Coimbatore. Date: 02.12.2011 Habitat: Wild Habit: Herb. may be Conyza bonariensis? but please wait for expert comments identifying plant: Sir I am sending you some photos of a plant. Please help me to identify this plant. Descriptions: Place : Ambala Cantt Month : December Habitat : Roadside and garden Habit : Erect , green Height : About 2.5 feet Leaves : Long , narrow , pointed Stem : Green Yes as ... suggested it is Conyza bonariensis to me also
VOF: Asteraceae sp5 at Joshimath: One more Asteraceae sp. from Joshimath. Date/Time: 06-08-2012 / 11:10AM Looks very close to Conyza bonariensis..... Yes Conyza bonariensis
Pictures taken on 15/4/2010 in our Nasik home garden. Height of plant around a foot. White flowers suggesting Asteraceae. Id please. Looks like Conyza bonariensis Thank you for the id.
Conyza bonariensis (L.) Cronq., Bull. Torrey Bot. Club. 70: 632. 1943 syn: Erigeron bonariensis L; Erigeron linifolius Willd. It is quite common to find small flowered (rather small headed) species of Conyza throughout India along roadsides and wastelands. They are much more commoner in temperate climates. During my last visit to Kashmir I found that larger headed of the two, more robust, long hairy and low growing Conyza bonariensis (syn: Erigeron linifolius) had come in flowering and more delicate with smaller heads, taller with branching in the upper part Conyza canadensis came up to flowering towards end of June. This year with extended stay in Kashmir i found that by middle of july another very tall often growing to the height of 1-2 m, much more robust plant had come up and started flowering, but by the time C. canadensis had almost started to disappear. Initially I thought this to be late flowering population of Conyza canadensis, but when It came to flowering in August I discovered that it was very distinct from Conyza canadensis in robust habit, broader leaves, larger heads and phyllaries with much shorter hairs. It was finally identified as Conyza albida now correctly known as Conyza sumatrensis, a species often confused with the other two. Here is the key to separate them 1a. Plants usually shorter than 50 cm; lateral branches equalling or overtopping main axis; heads 5-8 mm across; ray corolla shorter than 0.3 mm; fruiting head 8-10 mm across, pappus 3-4 mm long; lower leaves linear-lanceolate, upper linear....................................................................................Conyza bonariensis 1b. Plants usually taller than 50 cm; lateral branches shorter than main axis; heads less than 6 mm across; lower leaves lanceolate or oblanceolate, upper linear-lanceolate..................................... (2) 2a. Ray corolla shorter than 0.3 mm; heads 4-6 mm across; fruiting head 7-8 mm across, pappus 3-4 mm long; lower leaves oblanceolate, upper linear-lanceolate; plants densely hairy, phyllaries short hairy........................................................................................................................Conyza sumatrensis 2b. Ray corolla 0.3-1 mm long; heads 2-4 mm across; fruiting head 5-6 mm across, pappus 2-3 mm long; leaves lanceolate; plants sparsely hairy; phyllaries with few long hairs............................Conyza canadensis
Asteraceae Week (Part I - Radiate heads) :: Conyza bonariensis at Joshimath :: PKA28:: Attachments (2). 3 posts by 2 authors. Asteraceae sp. from Joshimath. Bot. name: Conyza bonariensis Date/Time: 06-08-2012 / 11:10AM Yes …
This very common weed was shot from my village in Kaithal, Haryana... Erigeron bonariensis... hopefully I am right.. Yes ... Good photographs.
Conyza bonariensis (L.) Cronquist [=Erigeron bonariensis L.] is a very common weed throughout India. Here photographed in Pantnagar Uttarakhand.
Wild Weed For ID : Lalbagh,Bangalore : 211213 : AK-28 : Attachments (2). 3 posts by 2 authors. A weed seen growing wild inside the garden. Conyza species? Conyza bonariensis? Conyza bonariensis I suppose Thanks for confirming.
Fwd: need id assistance for JNU campus forest plant SP 2 : 3 posts by 3 authors. I need id assistance for following plants collected from JNU New Campus Forest, New Delhi. Date: 27.04.2015 Seems like Eclipta prostrata (alba) This looks to be Conyza bonariensis..
Need id assistance for JNU Plant : 4 posts by 3 authors. Attachments (1) I need id assistance for the following image belonging to Asteraceae member Date of Collection: 13th April 2015 Locality : JNU New Campus, New Delhi Not very clear but perhaps Conyza bonariensis yes of course picture is too dark and somewhat fuzzy Thank you sir for your correct id assistance although the image was not clear. Please identify the plant, a weed /ornamental grown in some body's house. Sent from one of my friends. The photographs are not clear. I think Conyza bonariensis (L.) Cronquist as per comparative images at Conyza Thanks ... For me the ID is correct and take it to label the picture.
Location : Tatopani, Pokhara, Nepal Date : 12 April 2017Elavation : 5000 ft. Pl. check with images at https://sites.google.com/site/efloraofindia/species/a---l/ar/asteraceae/asteroideae/astereae/conyza/conyza-bonariensis To me appears close. Herb ( exotic weed ? ) for identification : 9 posts by 3 authors. Attachments (6) Date/Time- AUGUST 2018 Location- - MULUGU FOREST RESEARCH STATION, NEAR SHAMIRPET, RR DIST, TELANGANA Habitat- EVERYWHERE Plant Habit- Herb Height/Length- 1-1.5 FEET MAX Leaves - ELONGATED WAVY Other Information: OBSERVED THESE PLANTS AT MANY PLACES..... THINKING IT TO BE A WEED (EXOTIC) A Conyza sp. of Asteraceae? Kindly check for Gamochaeta sp. of Asteraceae It looks very close to Conyza canadensis of Asteraceae in my view. Does not seem to match with any species as per comparative images at Gnaphalieae Thanks, ..., for initial id. I think more closer to images at Conyza bonariensis (L.) Cronquist than those at Conyza canadensis (L.) Cronquist Please help to id this Compositae found as roadside weed in Ooty, The Nilgiris. Date/Time- 18-04-2011 / 03:00 PM Location- Place, Altitude, GPca.2100asl; Ooty, TN Habitat- Garden/ Urban/ Wild/ Type- roadside fence Plant Habit-erect herb Height/Length- c. 25 cm long Leaves Type/ Shape/ Size- ca.6 x 2 cm Inflorescence Type/ Size- terminal heads Flowers Size/ Colour/ Calyx/ Bracts- yellowish-creamy; c. 0.3 cm across - I think Conyza bonariensis (syn: Erigeron bonariensis; E. linifolius) - Many thanks .., this Tropical American herb is Conyza bonariensis (L.) Cronquist
Location Kalatope, Chamba Habit herb Habitat wild Altitude 2100 mts Height 36 inches approx.
confused between Conyza canadensis, stricta, japonica ? I doubt they are two photographs of the same plant. The first one from leaves looks like Vernonia cinerea (but should have pink heads), the secomd may well be Conyza bonariensis. You may please recheck These photographs are of same plant and I think it may be Conyza bonariensis as suggested by you. Same plant in both the pictures. This plant is Conyza bonariensis of Compositae. I posted earlier for identification and please check on: https://groups.google.com/group/indiantreepix/browse_thread/thread/88... I too think that this is Conyza bonariensis (Asteraceae) I have a humble request to all that while taking pictures of herbs please take at least one picture to show the entire plant and its near surroundings. This would sometimes help in easy id. Please check the link provided by .. https://groups.google.com/group/indiantreepix/browse_thread/thread/88... of the same species. The leaves that are aggregated at the base is also a key character for this species.
efloraofindia:''For Id 16092011MR2’’ wild flower Pune: Date/Time-Sep 2011 Location- Place, Altitude, GPS-Pune Habitat- Garden/ Urban/ Wild/ Type-Wild Plant Habit- Tree/ Shrub/ Climber/ Herb- Plant Height/Length-about 1.5 ft Leaves Type/ Shape/ Size-green Flowers Size/ Colour/ Calyx/ Bracts- yellow buds Fruits Type/ Shape/ Size Seeds-i think brown seeds Conyza bonariensis, a common weed, native to America. http://www.flowersinisrael.com/Conyzabonariensis_page.htm Thank you ... for almost a spot identification. After looking on the net I found the following info and was shocked to know its medicinal use. I am surprised to learn that most of the wild plants have infact a great deal of medicinal value
efloraindia: 220911 BRS 41: Pl. find the attached file contain photo for id. Date/Time-Location- July, 2011 Place, Altitude, GPS- NBNP Garden, (640 MSL), Coimbatore Dist., Habitat-Garden Plant Habit- Shrub? yes...one of the five flea-banes used in various herbal medicinal traditions... with mixed enthusiasms over the centuries and continents... MY question is this a pl480 import or is it native to India? 210312::wild::Sl. No.-3: Date/Time- 11th March, 2012 Location- Place- Merrut Habitat- Wild Plant Habit- shrub Height- 50cm Link- http://www.projectnoah.org/spottings/9926512
Asteraceae species? Blumea? : 4 posts by 3 authors. Attachments (1) I was going through my old pictures. Found this one. Looks like a herb 3-4 feet in height. Some blumea? Erigeron bonariensis syn. Conyza bonariensis ? ID verification : 5 posts by 4 authors. Attachments (3)- 1mb each. I will be thankful if you could suggest/verified the ID of the attached species. Location- Rajgir town, Nalanda (Bihar) Annual herb Date- 02 June 2020 Yes, it is Erigeron bonariensis.. Yrs, ... Clicked in mid July, Najafgarh, Delhi Erigeron bonariensis L. Syn : Conyza bonariensis (L.) Cronq. ??? Thanks, ..., for the id. Yes, appears close to Conyza bonariensis (L.) Cronquist as per comparative images at Conyza Main difference from Conzya sumatrensis is that Conzya bonariensis (L.) is a shorter plant, and its lateral branches are taller or equal to the main axis. Am I right? My images do not show this difference, so how do we arrive at the conclusion that it is Conzya bonariensis? What are the other key differentiators you can see in my images, ...? Yes it is Conyza bonariensis Check this thread https://groups.google.com/g/indiantreepix/c/Cug08YO0bbM If you observe the images at Conyza sumatrensis and Conyza bonariensis, you can see the differences. References:
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# Species- Seed plants (families) > A---L (families & genera) > Ar > Asteraceae (Compositae) > Asteroideae > Astereae > Conyza >
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