Pennisetum purpureum Schumach., Beskr. Guin. Pl. 44 1827. (Syn: Amphochaeta exaltata Andersson [Illegitimate]; Cenchrus purpureus (Schumach.) Morrone; Gymnotrix nitens Andersson; Pennisetum benthamii Steud.; Pennisetum benthamii var. nudum Hack.; Pennisetum benthamii var. sambesiense Hack.; Pennisetum benthamii var. ternatum Hack.; Pennisetum blepharideum Gilli; Pennisetum exaltatum (Andersson) Hook.f. ex B.D.Jacks. [Illegitimate]; Pennisetum flavicomum Leeke; Pennisetum flexispica K.Schum.; Pennisetum giganteum Regel [Illegitimate]; Pennisetum gossweileri Stapf & C.E.Hubb.; Pennisetum hainanense H.R.Zhao & A.T.Liu; Pennisetum lachnorrhachis Peter; Pennisetum macrostachyum Benth. [Illegitimate]; Pennisetum nitens (Andersson) Hack.; Pennisetum pallescens Leeke; Pennisetum pruinosum Leeke; Pennisetum purpureum subsp. benthamii (Steud.) Maire & Weiller; Pennisetum purpureum subsp. flexispica (K.Schum.) Maire & Weiller);  
 

 

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This is a common grass of more than 5 ft in height and can be found in village outskirts.

Species : UNKNOWN

Habit & Habitat : wild grass, uncultivated land

Date : 08-04-12, 2.00 p.m.

Place : Hooghly, WB


I was consulting poaceae genera given in my ‘plant groups’ book along with the internet. Found two similar species –

This grass has been identified by … as Pennisetum purpureum Schumacher, along with a note at another thread at – https://groups.google.com/d/topic/indiantreepix/hZASMNDmRT4/discussion


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grass Pennisetum? from Hooghly 23/10/12 sk: Found this grass near my home. Attaching two sets, recorded at two places within 500 meter, the first set with maximum nos of pics inside a rejected compound of PWD office and the 2nd set in roadside ditch.

Species : Pennisetum purpureum Schumacher ?

H & H : roadside waste place, ditch; a few more than 10 feet high; stem erect, one or two diagonal; stem sometimes branched; leaves near inflorescence 50 cm x 1.7 cm, much longer and broader at base and midway; inflorescence about 15 cm long
Date : 23/10/12, 11.05 a.m.
Place : Hooghly


Yes, it is Pennisetum purpureum, commonly called Napier grass. 

I cannot express in writing how i am thankful to you. I have one earlier post of similar looking grass and i think that is also P. purpureumhttps://groups.google.com/d/topic/indiantreepix/vX0f8PbsgTg/discussion


I cannot express in writing how i am thankful to you. I have one earlier post of similar looking grass and i think that is also P. purpureumhttps://groups.google.com/d/topic/indiantreepix/vX0f8PbsgTg/discussion


Yes. That is also the same. However, under cultivation, there are also hybrid napiers which are man made hybrids of Pennisetum purpureum and P.americanum (Bajra). Their seeds will not be fertile.


Manoj why would they be hybridized? for what purpose?


ANd I have one more silly question… 
how does our Indian Bajra become p. americanum????? american?? 


I found a well written paper at this site for the hybridization and its utility in animal husbandry …
http://www.maralika.com/GRASS.html


When i searched the net for Pennisetum species in West Bengal i came across the cultivated hybrid of the two Pennisetum species as you have mentioned here. But, i think this grass is no more cultivated in our locality, instead i have seen cultivation of another fodder grass and i have a post of that species too, at – https://groups.google.com/d/topic/indiantreepix/uYhS81NOivo/discussion.


It is just a nomenclature change. Earlier, Indian and African Bajra was known as Pennisetum typhoides. There was another species called P.spicatum from Africa, which later on was found to be just a variation of Pennisetum americanum, which is based on the originally published Panicum americanum Linn. published in 1753. A detailed study of P.americanum and P.typhoides from different areas and by different authors finally led to the consensus that both of them have several variations which are continuous in nature and hence should be considered as the same species. By rule of priority of publication, Pennisetum americanum (Linn.) K.Schum. was accepted as the correct name of pearl millet (bajra).


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Poaceae, Cyperaceae and Juncaceae Week: Poacaeae; Fodder grass for ID from Hyderabad 05042013 CS1 : This is a cultivated grass from the Agricultural University fields. Is it Pennisetum sp


Pennisetum purpureum



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Poaceae, Cyperaceae and Juncaceae Week:Poaceae grass for ID 05042013 CS 3 : Attachments (1). 2 posts by 2 authors.
Cultivated fodder grass


Pennisetum purpureum


Sharing the images of Pennisetum purpureum from Coimbatore.


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Grass ID from Bangladesh SM163 : 3 posts by 3 authors. Attachments (1).  

Habit: Grass

Habitat: Wild

Flowering: April,2010

Location: Khustia


Does it look like efi thread ?


Pennisetum purpureumNapier grass– hybrid fodder


  

 

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Re: SK1550 31 Oct 2018 : 4 posts by 3 authors.
Location: Star Ferry, Hong Kong
Altitude: Sea level
Date: 31 October 2018
Habit : Cultivated
Pennisetum ??

Not sure but seems like a hybrid of Pennisetum purpureum.  


 
References:

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