Phyllanthus: Besides one other but still apart

Phyllanthus: Besides one other but still apart

Nearby a park found (location: New Delhi, Time - 6:05)two phyllanthus together but they showed different behaviour at the same time.

One of the phyllanthus was wide awake while the other was just about to sleep.

This phyllanthus is wide awake at 6:05pm

Whereas this one is about to sleep.

Why this anomaly??
And if it is somewhat natural due to some reasons then i think groups working on phyllanthus should observe at least 5 phyllanthus at a time and take some median value or mean of the time to study circadian rhythm…


I think first they should observe for 3-4 days daily…if it shows the same pattern of Sleeping and waking up as this anamoly then I think they should uproot 6 Phyllanthus plants from here (three who are asleep early and 3 who sleep at the time they should) and plant them in the same pot with soil from the side of the Phyllanthus shoeing Right Circadian Rhythm according to you…(so that they have same conditions) and then study their Circadian rhythm,if it does change that means there’s something wrong with the chemical composition of the soil or soil has patchy distribution of a particular chemical ( which chemical,I can’t think of this) but this will be sure shot that It isn’t Phyllanthus that had something wrong with it… it’s the soil! If it doesn’t then that means It’s Phyllanthus… that has something different in it!


That’s a good idea.
But i think group working on phyllanthus can help us someway if they know about some chemicals in soil that affect circadian rhythm of phyllanthus or some changes in plant itself that does so…


Great to find out this variation.

Are they both of same species? or are they different? What are salient characters of phyllanthus?
Are they of same age?
Will age affect sleep cycle of phyllanthus?

Have you checked for any reference, on any chemicals in soil which affect sleep wake pattern of phyllanthus? @Rupamk

It is a great idea to observe and map phyllanthus from different areas and see the pattern

Eagerly looking forward to report on this…

Following table shows characteristics to identify different species of Phyllanthus -

Using the above table I tried to classify the two plants-

*plant 1

Leaves- obtuse and oblong
Flower - whitish and hexatepalous
Fruit - greenish
Observing these characters, plant 1 seems to be Phyllanthus odontaenius

*Plant 2

Leaves - elliptic and obtuse
Flower - pentapetalous
Fruit - greenish
Observing these characters plant 2 seems to be Phyllanthus amarus

Leaves of two plant species together-

Since, the two plants belong to different species which could be the reason of its different circadian rhythm…


I think age to some extent can also vary circadian rhythm.
I would like @anuleka_dutta, @Anushka and others working on phyllanthus to give their views…

Also one thing i would not be able to continue to look for phyllanthus circadian rhythm because of some constraints. Apologies…

1 Like

Great reporting.

@Rupamk why not collaborate with Anulekha and Anushka to find out more about it?
Why not look in literature and share whether species have variation in sleep wake patterns in phylanthus?

Are there any chemicals in soil reported in literature which affect this circadian rhythm?

On what basis are you stating this ? Have you observed any change in the sleeping pattern of the young leaves and the old mature leaves ?

How are we sure they are of the same species? @Rupamk @KomalKotra @jaikishan @PChitralekha