Youngia tenuifolia or Crepis flexuosa ?

Youngia tenuifolia (Willd.) Babc. & Stebbins, Gen. Youngia (Publ. Carnegie Inst. Wash. No. 484) 46 (1937). 46 1937. ?;


Images by Prashant Awale (ID suggestion Gurcharan Singh), Inserted by Gurcharan Singh (Click link to see details).
https://08511630493324166816.googlegroups.com/attach/c88f359a033e8c3b/IMG_1622.jpg?part=0.1&view=1&vt=ANaJVrF7zn8wgNkQ7l3SSb1Rp6JfVtLfBC5iCaRJOBZZiOmhd981vKWM3Tfih6Cq4i7iaVIfo7U3qyXkstU_0-4Uu_roGr0bpU7Dn0Z-RWLCWIh1l11OhlY
https://08511630493324166816.googlegroups.com/attach/c88f359a033e8c3b/IMG_1623.jpg?part=0.2&view=1&vt=ANaJVrFzsDwpr7JyKVDob7YD2Cf2iENKlZrPkugszwD4NhwAwB498EifgLbRtp9iT6--PSbHpq-LFTbaNcHOSfY_p1LTq1NiAHZsDiVc_YMyYIy4d4Kb2Y0
https://08511630493324166816.googlegroups.com/attach/c88f359a033e8c3b/IMG_1624.jpg?part=0.3&view=1&vt=ANaJVrHCex3bEXcj0aky3ot_80u7Z3ACaq-B1WQOOK2g1eombWDwOz_EWdIblMjree0wmgiSVmveSLU19u0O1jVcO7hOrTTYrUJrXG6AzlRNzJAeBQfAcpg

ID request- 101011-PKA2: Seen this herb near Pangong Lake in Ladakh.
Family: Asteraceae
Could this be Crepis flexuosa??
Date/Time: 14-09-2011 / 03:30PM
Location: Pangong Lake, ladakh (Altitude: Approx: 14300ft)

Habitat: Wild (on Sandy , stony soil)
Plant Habit: Herb

Looks like Chondrilla juncea.
In Chondrilla juncea the heads are generally on short axillary stalks and florets many in number, and more so not reported from Ladakh
Crepis flexuosa generally forms clumps
To me it looks like Youngia tenuifolia (syn: Crepis tenuifolia)
Chondrilla juncea not only not known for Ladakh but not in Pakistan or Kashmir.
Crepis flexuosa and Youngia tenuifolia are the likely candidates.
Of these, C.flexuosa is very common on the dry inner ranges on bare gravelly soil @ 2700-5700m.
Y.tenuifolia (previously Crepis tenuifolia) recorded less frequently @ 3000-4600m.
Have not found it easy to distinguish between the two.  From the herbarium specimens and illustrations
I have seen to date, favouring Youngia tenuifolia but does anyone know better?
I have made some progress and am now comfortable with what Crepis flexuosa and Youngia tenuifolia (or whatever current name is accepted).
I can now say with confidence that the plant photographed is not Youngia tenuifolia.
It must be said that the specimen photographed is a poorly developed one and things have been made difficult because the involucral bracts are not in focus nor the foliage for that matter but I suspect this will probably prove to be Crepis flexuosa.

Asteraceae Fortnight Part 3-Ligulate heads (plus Misc.): Youngia tenuifolia?? at Ladakh :: PKA6:: : Attachments (3). 3 posts by 2 authors.
Seen this herb near Pangong Lake in Ladakh.
Family: Asteraceae
Bot name: Youngia tenuifolia (syn: Crepis tenuifolia)??
Date/Time: 14-09-2011 / 03:30PM
Location: Pangong Lake, ladakh (Altitude: Approx: 14300ft)
Habitat: Wild (on Sandy , stony soil)
Plant Habit: Herb

earlier thread: ID request- 101011-PKA2:
A reply from another thread:
Chondrilla juncea not only not known for Ladakh but not in Pakistan or Kashmir.
Crepis flexuosa and Youngia tenuifolia are the likely candidates.
Of these, C.flexuosa is very common on the dry inner ranges on bare gravelly soil @ 2700-5700m.
Y.tenuifolia (previously Crepis tenuifolia) recorded less frequently @ 3000-4600m.
Have not found it easy to distinguish between the two.  From the herbarium specimens and illustrations
I have seen to date, favouring Youngia tenuifolia but does anyone know better?
A  feedback from ... from another thread:
"I have made some progress and am now comfortable with what Crepis flexuosa and Youngia tenuifolia (or whatever current name is accepted).
I can now say with confidence that the plant photographed is not Youngia tenuifolia.
It must be said that the specimen photographed is a poorly developed one and things have been made difficult because the involucral bracts are not in focus
nor the foliage for that matter but I suspect this will probably prove to be Crepis flexuosa."


References:
Comments