Grass from Agra, U.P

[ankushdave .]

Group Members,

Please identify

Grass from Agra, Uttar Pradesh

Growing wild. Date : 10 October 19

 

Thanking You,
Ankush
Mob:- 7017606718

[Shaikh Tarbej]

Setaria pumila (Poir.) Roemer & J.A. Schultes
Poaceae
Common name: Yellow Foxtail

[Shaikh Tarbej]

[ushadi]

good

Regards

Ushadi

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[J.M. Garg]

Thanks, Tarbez ji for id as Setaria pumila

Is there a possibility of Setaria glauca as per efi thread ?

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[Shaikh Tarbej]

Generally Setaria glauca having longer Raceme 

While S. pumila not 

[J.M. Garg]

Thanks, Tarbej ji.

To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/CAE-sFXthV%3DazUZtu7bpCx%2B4J1LgGJDMRx61nb-2q6gY0PWT7yQ%40mail.gmail.com.

[ankushdave]

Thanks Sir

[ankushdave]

Thanks

[ankushdave]

Thanks Sir

[J.M. Garg]

Thanks, Manoj ji.

---------- Forwarded message ---------
From: Manoj Chandran
Date: Mon, 21 Oct 2019 at 22:11
Subject: Re: [efloraofindia:332594] Grass from Agra, U.P
To: J.M. Garg <jmg...@gmail.com>

Most likely Setaria glauca due to the comparatively large spikelets compared to the bristles. Also, more curved profile of spikelets. Setaria glauca usually have larger and longer spikes, but varies a lot depending on season, variety, soil conditions, grazing incidence, etc and sometimes are as small as Setaria pumila spikes, but the spikelets remain larger (3mm). Setaria pumila is found more in peninsular India, has smaller spikelets (2.25mm) with less curved profile. It can be confirmed if the measurement of the spikelets are taken. You can take a closeup photo of a spikelet kept on a scale/graph paper. Another identification feature is the rugose (wrinkled) upper lemma. It is more wrinkled in glauca and finer in pumila. But to know that, one has to keep both species side by side and observe. I also have an opinion that Setaria pumila is the original diploid species whereas Setaria glauca is the improved tetraploid variety in cultivation and also escaping into the wild and sometimes reverting into diploidy. However, the abundance of Setaria pumila in South and peninsular India and abundance of Setaria glauca in Northern India is also a mystery, may be due to environmental factors. Since Setaria is a cultivated fodder, several hybrids also exist.

[ankushdave]

Thank you very much Garg Sir for forwarding to me the enlightening mail of Manoj Sir regarding the two grasses.