Eriocaulon tuberiferum

IUCN Red List Status: Vulnerable (VU)

tuberiferum A.R.Kulk. & Desai, J. Bombay Nat. Hist. Soc. 71: 81 1974. ;
commonly known as: tuberous pipewort • Marathi: पाणगेंद pan-gend;
Kas Week :: DV :: 28 SEP 08 - 0103 :: Eriocaulon tuberiferum: Kas plateau ... about 4000 ft asl
... one of the 39 World Heritage sites in the Western Ghats of India
28 SEP 08
Eriocaulon tuberiferum A.R.Kulk. & Desai ... (family: Eriocaulaceae)
er-ee-oh-KAW-lon -- from the Greek erion (wool) and kaulos (plant stem) ... Dave's Botanary
too-ber-EE-fer-um -- bearing tubers ... Dave's Botanary
commonly known as: tuberous pipewort • Marathi: पाणगेंद pan-gend
Endemic to: northern Western Ghats (of India)
Reference: Flowers of IndiaFlowers of Sahyadri by Shrikant Ingalhalikar
Kaas week : Eriocaulon tuberiferumEriocaulon tuberiferum
Kas week : Eriocaulon tuberiferum SMP:  I think this is Eriocaulon tuberiferum
Please opine.
Family : Eriocaulaceae
Anmod Ghat :: Eriocaulon tuberiferum :: DVFEB63/96 : 2 posts by 2 authors. 3 images.
Anmod Ghat ... NH4A descending from Anmod, Karnataka to Mollem, Goa
Date: 26 MAY 2013 ... Altitude: descends from about 640 m asl to 90 m asl 
Eriocaulon tuberiferum A.R.Kulk. & Desai ... (family: Eriocaulaceae)
eriocaulon tuberiferum for validation: eriocaulon tuberiferum hopefully
at mahabeleshwar
a few weeks ago
This plant, even the family is new to me. But i very much want to find a similar looking herb, very nice looking, a white ball on a stick!
But google search gives many similar looking plants of various species of the same genus.
This family seems to be less documented in the net.
Some genera in the family are Blastocaulon, Eriocaulon, Lachnocaulon, Leiothrix, Mesanthemum, Paepalanthus, Philodice, Syngonanthus,Tonina -
Confirm whether any root tubers are present
Eriocaulon tuberiferum is the lone species with tubers in India.
Many thanks ... for this important key information.