Typha domingensis in FOI

[J.M. Garg]

Typha angustifolia L.and Typha domingensis Pers. are very close as per keys in Flora of China.

Images of Prashant ji in Flowers of India, may be Typha angustifolia L., if we go by distribution as below:

Typha angustifolia L. (Karnataka (Gulbarga and Coorg district), Kerala and Maharashtra as per Flora of Peninsular India)
Typha domingensis Pers. (Andhra Pradesh, Telangana, Karnataka (Ballari, Kolar and Chamarajanagar Districts), Maharashtra (Akola district), Odisha and Tamil Nadu as per Flora of Peninsular India)

If there is different distribution in Flora of Maharashtra, pl. let us know. 
--

With regards,
J.M.Garg

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[Tabish]

Thanks Garg ji for bringing this up. Yes, the two species appear very close.

Typha angustifolia  native range is Temp. Northern Hemisphere.

Typha domingensis native range is Tropics & Subtropics.

From this I would have expected that Typha domingensis would be more widespread in the warm tropical climate. But of course, this is not enough justification, and I would like to know if Typha domingensis is found in Maharashtra. Since it is pantropical, I will be surprised if it is not found in Maharashtra.

   Best wishes

   Tabish

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www.flowersofindia.net
The waterhole of flower lovers

[J.M. Garg]

Hi, Tabish ji,

From the distribution given in Flora of Peninsular India, it appears that Typha angustifolia L. (Karnataka (Gulbarga and Coorg district), Kerala and Maharashtra) is distributed more in the Western Ghats area, while other places in South India, it seems that Typha domingensis Pers. (Andhra Pradesh, Telangana, Karnataka (Ballari, Kolar and Chamarajanagar Districts), Maharashtra (Akola district), Odisha and Tamil Nadu) is prominent.

[Tabish]

Garg ji,

   Please have a look at the attached paper, particularly the highlighted portion. Some important takeaway points seem to be:

1. Typha domingensis is more widespread in India compared to Typha angustifolia.

2. Typha angustifolia has often been ignored in India, but does exist here.

3. flora of Yavatmal district, Maharashtra (Karthikeyan & Kumar, 1993); the state flora of Maharashtra (Lakshminarasimhan, 1996) and the flora of Sanjay Gandhi National Park, Borivali, Mumbai, mistakenly treat T. angustata (which is actually T. domingensis) as T. angustifolia.

4. The paper tabulates differences between the two species. However, I am unable to use them for the images we have.

   Tabish

-------------------------------------------
www.flowersofindia.net
The waterhole of flower lovers

[J.M. Garg]

Thanks, Tabish ji.

We may seek detailed images from Prashant ji, Dinesh ji, Alka ji and Mani ji, to determine the exact species, based on differences enumerated in the publication.

Prashant ji, Dinesh ji, Alka ji and Mani ji,

Pl. post detailed images or examine yourself and tell us.