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Ageratum conyzoides L., Sp. pl. 2:839. 1753, nom. cons. prop. ;
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commonly known as: billy goat weed, tropical whiteweed • Bengali: uchunti • Hindi: जंगली पुदीना jungali pudina • Kannada: ಹೇಲುಕಸ helukasa, ನಾಯಿ ತುಳಸಿ naayi tulasi • Konkani: वोसाडी vosadi • Manipuri: খোংগজাঈ নপী khongjai napi • Marathi: घाणेरा ओसाडी ghanera osaadi • Sanskrit: विषामुष्टिः visamustih • Tamil: அப்பக்கொடி appa-k-koti • Telugu: పోకబంతి poka-banti ;
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It (Ageratum houstonianum) has larger and robust plants and flowerheads with more florets than A.conyzoides.
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In A conyzoides plants and phyllaries are not that densely hairy, and heads are smaller and more spreading
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Thicker cordate leaves and longer hairs especially on involucre bracts are clearly seen in Ageratum houstonianum.
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Ageratum L. genus is represented in India by two species- A. conyzoides and A.houstonianum.
These closely related pantropica weed species can be differentiated as follows:
Involucral bracts linear, sharply acute-acuminate, sparsely hairy; Corolla of the florets 1.5mm long, shorter than awned pappus scale…. A. conyzoides L.
Involucral bracts linear setaceous, densely hairy; Corolla of the florets 2.5mm long, as long as or longer than awned pappus …. A. haustonianum Mill.
. Ageratum conyzoides (Billygoat-weed, Chick weed, Goatweed, Whiteweed; Ageratum conycoides L., Ageratum obtusifolium Lam., Cacalia mentrasto Vell.) is native to Tropical America, especially Brazil. Herb 0.5–1 m. high, with ovate leaves 2–6 cm long, and flowers are white to mauve.[1]
Ingesting A. conyzoides can cause liver lesions and tumors.[4][5] There was a mass poisoning incident in Ethiopia as a result of contamination of grain with A. conyzoides.[6] The plant contains the pyrrolizidine alkaloids lycopsamine and echinatine.
A. conyzoides is prone to becoming a rampant environmental weed when grown outside of its natural range. It is an invasive weed in Africa, Australia, Southeast Asia and the USA.[7][8] It is considered a moderate weed of rice cultivation in Asia.[9]
(From Wikipedia on 9.6.13) .
Herb ID request – RK38 – 28-Oct-2012: This is Goat Weed [Ageratum conyzoides]. How to differentiate between Ageratum conyzoides and A haustonianum
Plz id this herb: pa83 – 10jan2013:
Plz id this herb with light bluish-white flowers from Yeoor region. It is growing on the rocky soil and is around 6 inches height only. The last pic is of the root. Tks. I hope its a Eupatorium sp. Please check for Ageratum conyzoides and A.haustinianum. I also think this is Ageratum. Ageratum conyzoides , Asteraceae
efloraofindia:”For Id 13102011MR3’’ ? Ageratum conyzoides with pale blue flowers Pune:
Request for identification Date/Time-Oct 2011
Location- Place, Altitude, GPS-Pune
Habitat- Garden/ Urban/ Wild/ Type–wild
Plant Habit- Tree/ Shrub/ Climber/ Herb– herb
Height/Length– about 1/2 feet to 1 feet
Leaves Type/ Shape/ Size- green
Flowers Size/ Colour/ Calyx/ Bracts– light blue flowers
Fruits Type/ Shape/ Size Seeds-Not seen
Yes, I think this is Ageratum conyzoides, too.
ASTERACEAE Fortnight Part 2-Discoid heads: Ageratum conyzoides L. from Kamrup district, Assam_KD_2 : Attachments (8). 2 posts by 2 authors.
Attached images are Ageratum conyzoides L. collected from Kamrup district, Assam
ASTERACEAE Fortnight Part 2-Discoid heads: Ageratum conyzoides from Uttarakhand_DSR_2: Attachments (2). 3 posts by 3 authors.
Ageratum L. genus is represented in India by two species- A. conyzoides and A.houstonianum. Both of these species are not native in India but are invasive alien species originating in Tropical America. In Uttarakhand these reach up to 2000m altitude in the Himalaya.
These closely related pantropica weed species can be differentiated as follows:
Involucral bracts linear, sharply acute-acuminate, sparsely hairy; Corolla of the florets 1.5mm long, shorter than awned pappus scale…. A.conyzoides L.
Involucral bracts linear setaceous, densely hairy; Corolla of the florets 2.5mm long, as long as or longer than awned pappus …. A.haustonianum Mill.
Asteraceae Week (Part II – Discoid heads) :: Ageratum conyzoides at Tungareshwar WLS :: 30 NOV 09 :: DV04 : 3 images. 3 posts by 3 authors.
Ageratum conyzoides (L.) L.
ad-jur-RAY-tum — a plant that does not wither readily … Dave’s Botanary
kon-ny-ZOY-deez — resembling Conyza (a type of fleabane) … Dave’s Botanary commonly known as: billy goat weed, tropical whiteweed • Bengali: uchunti • Hindi: जंगली पुदीना jungali pudina • Kannada: ಹೇಲುಕಸ helukasa, ನಾಯಿ ತುಳಸಿ naayi tulasi • Konkani: वोसाडी vosadi • Manipuri: খোংগজাঈ নপী khongjai napi • Marathi: घाणेरा ओसाडी ghanera osaadi • Sanskrit: विषामुष्टिः visamustih • Tamil: அப்பக்கொடி appa-k-koti • Telugu: పోకబంతి poka-banti Native to: central and tropical South America; naturalized in tropics worldwide References: Flowers of India • FRLHT • Wikipedia • PIER • Further Flowers of Sahyadri by Shrikant at Tungareshwar Wildlife Sanctuary on 30 NOV 09
Asteraceae Fortnight Part 2-Discoid heads: Ageratum conyzoides from Delhi and Mussoorie Chakrata Road-GS3 : Attachments (5). 1 post by 1 author. Ageratum conyzoides (L.) L.
Annual weed with usually white or light lilac flowers, ovate leaves and glabrous involucre bracts.
Photographed from Delhi and Mussoorie Chakrata Road.
Yes … Good photographs.
Asteraceae Fortnight Part 2-Discoid heads:: Ageratum sp. for ID SMP 20 : Attachments (1). 4 posts by 3 authors. Ageratum conyzoides Yes, Ageratum conyzoides..
Wild Weed For ID : Nasik : 250813 : AK-2 : Attachments (1). 3 posts by 2 authors.
An old picture of mine. Wild weed seen growing on a farm in Nasik on 17/10/2007.
Ageratum? Yes, Ageratum conyzoides indeed..
Shrub ID from Bangladesh SM133 : 2 posts by 2 authors. Attachments (1).
Habit: Shrub Likely to be Ageratum conyzoides..
SYMBIOSIS : 696 : 1 post by 1 author. Attachments (1)
Attaching an image of Plain Tiger butterflies on the flowers of Ageratum conyzoides (GOAT WEED).
SYMBIOSIS : 709 : 1 post by 1 author. Attachments (1)
Attaching an image of a Common Hedge Blue on flowers of Ageratum conyzoides (GOAT WEED).
Ageratum species? ABSEP2016/51 : 2 posts by 2 authors. 5 images.
Please help with the identification of this Asteraceae. To me it appears to be an Ageratum species. Please advise.
Near Mcleodganj, HP 1800m approx. 27 September 2016 Ageratum conyzoides to me.
TSP-JAN2016-18-18:Images of Ageratum conyzoides (Asteraceae) : 3 posts by 2 authors. Attachments (4) It is my pleasure to share few images of Ageratum conyzoides (Asteraceae) Habit: Herb Habitat: Wild, occurring in open waste lands Sighting: Chikmagalur, Karnataka, about 1000 msl Date: 13-08-2014 and 12-02-2014
efloraofindia:”For Id 01092011MR1’’ plant with blue flowers Pune: Request for identification
Date/Time-Sep 2011
Request for identification Location- Place, Altitude, GPS-Pune Habitat- Garden/ Urban/ Wild/ Type-Garden Plant Habit- Tree/ Shrub/ Climber/ Herb- small plant Height/Length- about 1/2 feet to 1 feet Leaves Type/ Shape/ Size- green Flowers Size/ Colour/ Calyx/ Bracts- light blue small flowers Fruits Type/ Shape/ Size Seeds-Not seen A wild weedy aster… I have seen it in at least three continents in the end of summer early fall.. no digital photos to share though… Ageratum conyzoides surely….have worked on this plant at NIPER for 2 years in a row…..
Wild Plant for ID : Munnar : 011111 : AK-1:
identification no221111sn3: location:mulshi, pune 3000ft. above msl
habitat:wild
plant habit:herb
height:tiny … this may be Chromolaena odorata. Yes Chromolaena odorata Can it be Ageratum conyzoides? Sparsely pilose leaves (IMG_6467) suggesting me to go with Ageratum conyzoides. Looks lik Ageratum conyzoides to me too. Ageratum conyzoides
efloraofindia:”For Id 04072012MR3’’ wild plant with blue and white flowers ?Ageratum conyzoides at Pune: It may be Ageratum conyzoides.
efloraofindia:”For Id 04072012MR2’’ wild plant with white flower ?Ageratum conyzoides at Pune: June 2012; Pune;
Would appreciate your help to Id this wild plant ht 2 cms; leaf size 1.5cms by 1cm; flower head 1 cm, white in color, another white bud turned into a light purple flower head after 5 days.
?Ageratum conyzoides
Ageratum conyzoides, again.
efloraofindia:”For Id 04072012MR1’’ is this Ageratum conyzoides at Pune: June 2012; Pune;
Would appreciate your help to Id this wild plant ht 3 cms; leaf size 2cms by 1cm ;flower head 2cm, pale purple in color
?Ageratum conyzoides Yes, A. conyzoides!
Wild Plant for ID : Lonavala : AK-3: Ageratum conyzoides L.
310519AB2 ID : 6 posts by 3 authors. Attachments (2)- around 500 kb each.
Identification, please. Very abundant plant in Melghat. Regrets for the out focussed photo. You will find the same plant in the background as well, which has become the focus of the photo. Date/Time- November 7, 2017; 09:25 AM Location- Place, Altitude, GPS- Eastern Melghat, 21°27.407′ N,77°27.086′ E Habitat- Garden/ Urban/ Wild/ Type- Wild Plant Habit- Tree/ Shrub/ Climber/ Herb- Herb Height/Length- Upto 2-3’ Height Flowers Size/ Colour/ Calyx/ Bracts- Size 3-5 mm diameter and height, Colour White. Apart from identification, what is the native/invasive status of this species in India? Ageratum conyzoides… Want to confirm… Are we sure this is not Vernonia cinerea? Also important because V. cinerea is native to Africa whereas A. conyzoides is native to the Americas. … said is correct; am also agree with them, no doubt in that. now it’s very common at marshy and aquatic areas in our country( we have also, Andhra Pradesh)
Herb 111109GS1 for ID from Delhi – indiantreepix | Google Groups
Ageratum conyzoides L. ? Hooghly 20-12-12 sk3: Species : Ageratum conyzoides L.?
H & H : about 2 ot 3 ft high
Date : 20/12/12
Place : Hooghly This is Ageratum conyzoides L. (Asteraceae)
Asteraceae Week Part I-Radiate heads:- Ageratum conyzoides from Pune –MR12 : Attachments (7). 3 posts by 2 authors.
sharing pixs of Ageratum conyzoides from Pune of different plants at different places and time. Yes … Nice photographs.
TSP-DEC2015-44-217: Images of Ageratum houstonianum (Asteracea) : 1 post by 1 author. Attachments (4)
It is my pleasure to share few images of Ageratum houstonianum (Asteraceae) one of the virulent colonisers of wastelands. Similar to its much more virulent cousin, A.conyzoides . As per the efi thread A.houstonianum is larger and robust than A.conyzoides having more florets in the flower heads, thicker leaves and longer hairs. Habit: Herb Habitat: Waste lands Sighting: Chikmagalur, Karnataka, about 1000 msl Date: 06-06-2014 and 13-08-2014 A reply from another thread: “… Ageratum is Ageratum conyzoides only a variant but the remaining two are A.haustonianum“
Ageratum conyzoides L. from Guwahati.: Yes … Nice photographs          Asteraceae Fortnight Part 3-Ligulate Heads (plus Misc): Ageratum conyzoides from Kurukshetra-NS 28 :
Attachments (9). 4 posts by 3 authors.
This belongs to last episode, but as I found this later, I am sharing this now..
as in the previous fortnight all my Ageratum pics belonged to A. houstonianum, I was looking for A. conyzoides which I could find in a nursery near Kurukshetra..
hope the id is right and this one is Ageratum conyzoides efi page on Ageratum conyzoides Key to Ageratum can be found in – efi thread I guess only 2 sp. A. conyzoides and A. houstonianum are listed in Harayana and I guess A. conyzoides looks more close. I agree with you … for ID, . Id of another Plant of Asteraceae: 2 high res. images. Ageratum conyzoides I agree with you, as per images at Ageratum conyzoides . Asteraceae: Ageratum conyzoides L.: 1 image. .
Asteraceae: Ageratum conizoides: 1 high res. image.
Ageratum conizoides collected from Andhra Pradesh . References:
GRIN Flora of China Foc Illustration Flora of Nepal The Plant List (Author Citation different from GRIN) Dinesh Valke’s Flickr Post Flowers of India ENVIS – FRLHT Wikipedia PIER Top Tropicals Lycos |
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