Ludwigia perennis L., Sp. Pl. 1: 119 119 1753. (syn: Isnardia jussieuoides Kuntze; Isnardia multiflora Guill. & Perr.; Isnardia parviflora (Roxb.) Kuntze; Jussiaea caryophyllaea Lam.; Jussiaea maderaspatana Steud.; Jussiaea perennis (L.) Brenan; Ludwigia caryophyllea (Lam.) Merr. & Metcalf; Ludwigia gracilis Miq.; Ludwigia humbertii Robyns & Lawalrée; Ludwigia jussiaeoides Wall.; Ludwigia lythroides Bl.; Ludwigia multiflora Walp.; Ludwigia nesaeoides H. Perrier; Ludwigia oppositifolia L.; Ludwigia parviflora Roxb.; Ludwigia zeylanica Pers.; Oenothera quadricolumnata Noronha);
Erect herbs. Leaves 2-6 x 0.5-15 cm, elliptic-lanceolate, base attenuate, apex acute to acuminate, glabrous. Flowers sessile, 4-merous. Calyx tube adnate to ovary; lobes 4, c. 2 mm long, ovate acuminate. Petals 4-5 mm long, elliptic, yellow. Stamens 4; filaments short. Ovary 1-1.5 cm long, linear, 4-celled, 4-angled. Ovules many. Capsule 1-2 cm long, linear, subterete, 4-ribbed. Seeds ellipsoid.
Flowering and fruiting: Throughout the year
Waterlogged areas in grasslands
Tropical Africa, Asia and Australia
herb for id mm1 16102011: 2 images.
very small flowers
no bigger than 3 or 4 mm
would very much appreciate an id
Looks like Ludwigia octovalvis
This is Ludwigia perennis of Onagraceae family.
It is interesting
As per the key provided in this link ( http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=119063) and the description and illustrations therein shows that the stem leaf margin of L. octovalvis is hairy and the same for L. perennis is glabrous. In this pictures, though it is not very clear, seems that the plant is glabrous.
ludwigia species mm1 16102011: 2 images.
Got some some more photographs yesterday
the plant seems glabrous
without a hint of purple
I still think that this is L. perennis.
I am not aware of the two species in detail. Attaching my pictures of the plant seen near water body near Kaas Plateau which was IDed as L.octovalvis for comparison/Review again.
Is this a hairy plant or a glabrus one? Further in L. octovalvis the sepals are 0.5-1.2cm long petals are 0.6-1.8cm long whereas, in L. perennis it is less than 0.5 cm for both sepals and petals
I think you are right. That was the reason I posted the plant again.
the flowers of this ludwigia were tiny, no more thean 5mm at the maximum, so that seems to rule out L. octovalvis
Please refer the attached file.
Many thanks for the article – never knew of L.decurrens, among a host of other things!!
Would I be correct in assuming that a erect plant 1.5m, flower >2cms,
Ludwigia sp1 (?) ID Hooghly 16/9/12 SK2: 6 images.
Found this wild herb beside my home today.
Species : UNKNOWN
Habit & Habitat : small wild herb, less than 1 foot tall, stem glabrous, NOT wiged
Date : 16/9/12, 10.39 a.m.
Place : Hooghly
is that L.perrenis…?? For me it looks so…:-)
Thank you very much Sir for the ID of this Ludwigia species, found similar pictures at – http://www.flickr.com/photos/dinesh_valke/1443986132/
ludwigia perennis, flowers and fruits: 4 images.
ludwigia perennis over the past few weeks
ID correction GOPALNAGAR,WB OCTOBER,2016 : 3 posts by 2 authors. Attachments (1)
workout done. L. perennis
Ludwigia prostrata @ Mumbai: Attachments (6)
I have identified the images posted as being Ludwigia prostrata following the keys in Rheedea Vol. 20 (1) 59-70 2010. Reference is available in thread ‘efloraofindia:89073’.
Must mention that the keys in Flora of China and Flora of Maharashtra are different but Rheeda reference is most recent & India specific.
Flora of Maharashtra does not mention this species so am not sure whether it is documented in Maharashtra.
Here’s my brief explanation for the id:
– Plant erect. (-894)
– Stem winged (-896), well branched & herbaceous throughout.
– Stem and leaves glabrous.
– Flower (-900): sepals 4, petals 4; sepal size 4-5mm, almost similar for petals also;
– Capsule: as seen (-909)
– Capsule and seeds (-903): as seen [uniseriate: arrangement of seeds in a single row]
Numbers in brackets above are the last three digits of the respective images.
Ruled out L. perennis as stem and branches were winged.
Ruled out L. linifolia as stem not woody at base.
Will be happy to visit the site again & / or provide additional information, if required.
Would you please mention the number of stamens in your plant?
Working on stamen number in existing images;
I agree with your points. Initially I thought how come your plant L.prostarta is erect but later I read the description which states that the plant is semierect.
Whenever you happen see this plant next, please count the number of stamens by dissecting the flowers.
Number of stamens is crucial in confirming the id.
It is just impossible to count the number of stamens from pictures because they are almost adhered to the pistil (surrounding).
I had to sacrifice 4 flowers to get the actual count of stamens that I would upload later.
Still processing the id.
I am still waiting for the number of stamens in this plant if the number of stamens is not 4 in this plant then this is not L. prostrata.
BTW my plant also seems to have winged stem ….at least not cylindrical.
There is L. decurrens with 4-winged stem with 8 stamens and here we have L. prostrata, again 4-winged stem but with 4 stamens so what determines the species here?
Stamen count is four (4).
Four stamens, this is undoubtedly L. prostrata.
Attached images are Ludwigia octovalvis (Jacq.) Raven..
Date : 08.11.2012
Location: Kamrup district (Rural), Assam
Family : Onagraceae
Genus & species : Ludwigia octovalvis (Jacq.) Raven
Habitat: Grows on bank of the pond
Flower : Yellow in colour
ARJUL21 Plant for ID : 6 posts by 2 authors. Attachments (1).
This looks like Ludwigia octovalvis. Please check this link : Google Groups . Will send my more recent photographs of this later if required.
Thank you sir, but the petals in my photo seem to be acute tipped whereas the one you mentioned doesn’t seem so?
Habit photo: Attachments (1)
Photographed on my property at Shahapur. Any more doubts ?
None sir. Thank you very much for the photos and the id.
for id request 121112 BRS: 2 images.
Pl. find the attached file contain photos for id. request.
Habitat: Wild (Road side)
Just guessing Cuphea platycentra.
The first two pictures are of Ludwigia sp., probably L. perennis http://www.flickr.com/photos/dinesh_valke/1443980344/
For me the first two photographs (ptr 2012.jpg, ptr 2.jpg) look like one of the Ludwigia species.
SGNP, Aug 2014 :: Requesting ID of this plant :: ARKSEP-11 : 4 posts by 3 authors. Attachments (1).
Requesting to please ID this plant captured at Kanheri Caves, SGNP in Aug 2014. Any Ludwigia species?
One such plant has been identified as Ludwigia hyssopifolia (G.Don) Exell in my uploads.
Thank you … for a possible ID… Hopefully experts validate it.
Plz id this herb: pa16 – 30oct2012:
Thank you … I saw similar flower posted by … called Ludwigia perennis, is this the same?
I think it should be Ludwigia perennis as per images and details herein and as per keys at Ludwigia.
Plant for identification 15102013 : Attachments (2). 6 posts by 4 authors.
This is a species of Ludwidgia possibly L.octovalvis.
efi page on Ludwigia octovalvis
Ludwigia species for sure, but would require additional info like number of stamens for sps level id.
Wholeheartedly endorse … view.
Additionally flower size and capsule features are also very important to minimize guesswork.
Yes it is Ludwugia perennis.
Requesting ID of this plant – Mumbai :: 28082013 :: ARK-01 :: August 2013 : Attachments (4). 6 posts by 5 authors.
This is a species of Ludwigia possibly L.octovalvis.
looks like Ludwigia hyssopifolia
this looks Ludwigia parviflora.
Need Help in ID : Specimen 01, Little Yellow Flower : 5 posts by 3 authors. Attachments (1) – 2 mb.
These two wild shrubs are flourishing in Aramnagar, Versova, Mumbai.
Need help in identifying it..
The flower is roughly 6mm in diameter.
(Is there a good book on identifying wild shrubs of Maharashtra?)
Both photographed today, May 21, 2019.
Agra03 plant : 11 posts by 5 authors.
I’d requested for shrub growing near water body.
Ludwigia sp. Only. Resembles L.perennis,
Thanks Sir. But in my post flowers has 5 petals. But in foi images all flowers has 4 petals in L.perennis please guide.
Also check for L.parviflora. This is only a suggestion.
You’re welcome …, You can check e flora of India key of Ludwigia, there is clearly mentioned rarely pentamerous. And you can observe the forth image that has five petals And One more thing don’t relay too much for sp. On others because we are doing here photo taxonomy, Exact identification will do only which they have material, You can check with local floras of Ludwig keys then only you finalize sp.
L.parviflora has both 4 petalled & 5 petalled plants.
for Ludwigia, photographs are not enough.
You have to get hold of a regional flora or a key to Ludwigia species, have to sit by the plant and verify characters physically.
Ludwigia perennis :: Banasura Sagar Dam, Wayanad :: 15 NOV 19 : 5 posts by 3 authors. 4 images.
Banasura Sagar Dam Wayanad
Date: November 15, 2019 … Altitude: about 980 m (3,200 ft) asl
Ludwigia perennis L.
For me the ID is correct.
it just dawned on me that its used in aquariums. did you find this plant in waterlogged soil or in the edge of the dam?
Thanks … I think there were just a couple of this bushy plants, next to a foot wide remains of annual stream, quite far from base of dam.
Mumbai, MH :: Ludwigia octovalvis for validation :: ARK2020-024 : 5 posts by 3 authors. Attachments (4)
Saw this plant in a marshy area in Charkop, Mumbai, MH in October 2019.
Is this Ludwigia octovalvis? Local name provided was Pan lavang (trans. water clove).
Requested to please validate.
No, it’s not octovalvis, because the plant has glabrous and small petals,
Could be perennis
BK0036 : 11 posts by 4 authors. Attachments (1)- 724 kb.
Elevation: 1340m asl
Date: 19 Sep 2020
The fruit looks siliqua type.
Cuphea ignea ??
Not matching. Here the fruit can help.. missed the flower this season.
Two plants are there within the pic, one is a vegetative branch with opposite leaves and another one is the fruiting twig with alternate leaves,
Yes I was asking for the fruiting one, weed.
You’re welcome always, …, Check locally for sp. and let us know, resembles L.perennis,
Need help with yellow-flowered annual : 3 posts by 2 authors. Attachments (4)- around 700 kb each.
Pl. check comparative images at Ludwigia
Ludwigia Species for Id : Nasik : 04JAN21 : AK-03: 3 images.
Hope you’re right ma’am
Ludwigia perennis—for sharing and validation: 1 image.
Yes …, most probably it’s L. perennis. Pl. share more photos as possible.
Ludwigia Species for ID : Way to Nasik : 26OCT21 : AK – 024: 3 images.
Ludwigia hyssopifolia (G.Don) Exell ?
The leaves in my pictures are looking different.
Please check other sp. also.
Yes … I had suggested Ludwigia perennis in my initial post.
187 ID wild plant Ludwigia:
187 ID wild plant Ludwigia: 13 images.
looks like L.perennis. Check this link :
Yes, it is dear …, thank you very much for ID my plant and provided link,
Herb from Kanchipuram:
Ludwigia Species for ID : Nasik : 29NOV21 : AK – 029: 2 images.
It appears close to Ludwigia perennis to me as well.
References: Catalogue of Life The Plant List Ver.1.1 GRIN Flora of Pakistan Annotated checklist of the flowering plants of Nepal Flora of China Dinesh Valke’s Flickr Post IUCN Red List (LC) India Biodiversity Portal Wikimedia Commons