Plantago asiatica subsp. erosa (Wallich) Z. Y. Li (accepted name) ??

[Saroj Kasaju]

Dear Members,

Location: Soureni, Mirik, India

Date: 21 April 2017

Altitude: 4200 ft. 

Plantago erosa Wall. (synonym)  ??

Thank you.

Saroj Kasaju

[J.M. Garg]

Wonderful Images, Saroj ji

[J.M. Garg]

To me appears close to your images at Plantago asiatica subsp. erosa

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[Saroj Kasaju]

Plantago asiatica subsp. erosa (Wallich) Z. Y. Li (accepted name)

Plantago erosa Wall. (synonym)

Nepali Name : इसबगोल Isabagol 

Thank you.

Saroj Kasaju

[Saroj Kasaju]

Thank you.

Saroj Kasaju

[mcleodwild]

Dear Saroj ji,

I have been looking at our Plantago species here and finding it very difficult to identify with great certainty. First, to differentiate P. asiatica from P. major is a challenge. The flower stalk is absent on major but should be there on asiatica. However, the stalk is very short and difficult to see. Chromosome count is different but that is beyond my scope to check.

According to Tibetan Medicinal Plants 'typical P. erosa is characterised by a loose spike and irregularly, jaggedly toothed leaves which are hairy (especially when young)' From your photos I can see that the shape of leaves fits the description but I cannot tell if they are hairy (small tufts of hairs on the teeth of some leaves are visible but I cannot see anything more. There are no young leaves). The spike doesn't appear loose to me and I cannot tell whether the sepal keel is continuous. I will keep these plants broadly under Plantago major for the time being. The authors go on to say that all samples collected by them in the Muktinath Valley were typical P. major and not P. erosa. They suspect that P. erosa might grow in lower altitudes. 

Experts are guarded in determining the species using the macroscopic characters only. Their language is guarded and they emphasise on the difficulties in distinguishing the species, subspecies and varieties in the field. 

I wish I could be of more help.

Regards,

Ashwini

[Saroj Kasaju]

Thank you sir for the elaborate description. These images are from 

Soureni, Darjeeling, India at 4200 ft.

Saroj Kasaju

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[J.M. Garg]

Thanks, Ashwini ji.

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[J.M. Garg]

Thanks, Saroj ji.

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