Cirsium argyracanthum from Himachal Pradesh-GS31122021-3
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Gurcharan Singh
Dec 31, 2021, 8:26:08 AM12/31/21
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Cirsium argyracanthum DC.
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
incl. C. wallichii var. wightii Kook.f.
The heads like C. wallichii are mostly less than 2.5 cm across, but heads are crowded in clusters and pale yellow to white, involucre bracts not dilated, outer ending in long rigid spine, innermost linear long pointed, leaves glabrous on both surfaces.
Photographed from along road between Maa Bhangayani Temple Sirmour towards Nohradhar, alt. 2200 m, Himachal Pradesh, 25-5-2015.
Dr. Gurcharan Singh
Retired Associate ProfessorSGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Gurcharan Singh
Dec 31, 2021, 8:27:52 AM12/31/21
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More images
Dr. Gurcharan Singh
Retired Associate ProfessorSGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
J.M. Garg
Dec 31, 2021, 10:14:35 AM12/31/21
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Pl. consider Cirsium verutum as per images and details herein.
Flora of Bhutan gives the following keys:
8. Wide or narrow, pale, scarious, lacerate appendage on margins of outer and middle phyllaries near base of spine . … C. wallichii (specimen at POWO)- 2300-2400 mtr.
+ Phyllaries uniformly tapered, margin sometimes denticulate but not scarious- dilated near the base of the spine . . . .. 9
9. Leaves moderately spiny (spines 5mm); phyllaries purplish, outer usually ending in spine 2–4mm . .. .. C. tibeticum (syn. of Cirsium argyracanthum DC. as per POWO) (specimen at POWO)- 1450 to 2750 mtr.
+ Leaves very spiny (spines 5-12mm); phyllaries greenish, outer with spines 4-8mm . . . .. C. verutum (specimen at GBIF (one, two))- 1500 t0 2100 mtr.
8. Wide or narrow, pale, scarious, lacerate appendage on margins of outer and middle phyllaries near base of spine . … C. wallichii (specimen at POWO)- 2300-2400 mtr.
+ Phyllaries uniformly tapered, margin sometimes denticulate but not scarious- dilated near the base of the spine . . . .. 9
9. Leaves moderately spiny (spines 5mm); phyllaries purplish, outer usually ending in spine 2–4mm . .. .. C. tibeticum (syn. of Cirsium argyracanthum DC. as per POWO) (specimen at POWO)- 1450 to 2750 mtr.
+ Leaves very spiny (spines 5-12mm); phyllaries greenish, outer with spines 4-8mm . . . .. C. verutum (specimen at GBIF (one, two))- 1500 t0 2100 mtr.
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With regards,
J.M.Garg
J.M.Garg
Gurcharan Singh
Dec 31, 2021, 11:41:41 AM12/31/21
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C. verutum I will upload separately
Gurcharan Singh
Jan 2, 2022, 1:44:21 AM1/2/22
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Garg ji, if you read BSI Flora of India, C. tibeticum is excluded species as no specimens from India are available
Please also note POWO regards C. argyracanthum DC as accepted name and C. tibeticum Kit. as its synonym
Both FBI and BSI Flora of India record Heads 3.5 to 6 cm in C. verutum (C. involucratus of FBI), less than 2,5 cm in C. argyracanthum. BSI Flora mentions heads pale yellow to white in C. argyracanthum, whereas in all Bhutan images, images on Flowers of India and elsewhere heads are are purple in C. verutum.
J.M. Garg
Jan 2, 2022, 3:10:11 AM1/2/22
to efloraofindia, GurcharanSingh
Thanks, Singh ji.
It seems C. argyracanthum (POWO) and C. verutum (POWO) are a confusing lot in efi postings.Going by specimens of C. verutum (POWO)- one (C. involucratus of FBI) and two (C. involucratus of FBI), I feel all our posts in efi at Cirsium verutum look different and matches with specimens of C. argyracanthum (POWO)- one, two.
The post at Cirsium sp?? — enroute Dhel at GHNP – PKA30 may be of C. verutum (POWO)- three (C. involucratus of FBI)
What do you say?
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With regards,
J.M.Garg
J.M.Garg
J.M. Garg
Jan 2, 2022, 4:24:49 AM1/2/22
to efloraofindia, GurcharanSingh
Maybe a lot of threads (looking similar to your this post) also needs to be moved from our page at Cirsium wallichii as these look different from POWO specimens- one, two, three to C. argyracanthum (POWO)- specimen one, two
It is sometimes difficult to judge the size of heads in close up images. A habit image gives a better perspective.
With regards,
J.M.Garg
J.M.Garg
J.M. Garg
Jan 7, 2022, 1:00:16 AM1/7/22
to efloraofindia, GurcharanSingh
I think Cirsium wallichii (a highly variable species) as per discussions at Confusion between Circium argyracanthum and C. verutum
Inner bracts are scarious dilated.
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With regards,
J.M.Garg
J.M.Garg
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