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Species (& synonyms) |
Drosera peltata J.E. Sm. ex Willd. |
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Vernacular name |
Kosu otti (Tam.) |
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|
Family |
DROSERACEAE |
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Taxonomic status |
Species |
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|
Habit |
Tuberous
herb |
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Habitat |
Open
grassy slopes and mossclade dripping rocks of higher altitudes |
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Original global
distribution |
India,
Sri Lanka, S.E.Asia, Malaysia, to Australia and China to Japan. |
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Current regional
distribution |
Karnataka,
Kerala and Tamil Nadu. |
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|
- Elevation (m) |
1,200
- 2,200 |
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- Range (km2) |
>
20,000 (KA) |
<
5,000 (KL) |
>
20,000 (TN) |
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- Area occupied (km2) |
>
200 (KA) |
<
200 (KL) |
<
1,000 (TN) |
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- No. of locations |
Very
few, fragmented (KA) |
20
(KL) |
Many
(TN) |
|
Population Trends |
|
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- % decline |
>
50 (KA) |
>
20 (KL) |
>
50 (TN) |
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- Time/Rate (years or
generations) |
10
years |
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- No. of mature individuals |
Not
assessed (KA) |
>
1,000 (KL) |
>
1,000 (TN) |
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Global population |
Not
assessed |
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Regional population |
Declining |
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|
Data quality |
General
field studies, informal sightings and indirect observation. |
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|
Recent field studies |
K.Ravikumar
and S.P.Subramani (1997-98), Charmady and Kemmangundi MPCAs (KA). N.Sasidharan (1994), Eravikulam
MPCA, Parambikulam, Idukki; N.Anil Kumar (1995), Munnar, Chembara peak;
N.Mohanan (1994), Agasthiarmalai; K.Ravikumar (1994), Ponmudi grasslands;
A.G.Pandurangan (1995), Rajamalai, Ponmudi; A.E.Shanawaz Khan (1995),
Agasthiarmalai; C.R.Jawahar (1994), Ponmudi; P.S.Udayan (1996-98), Peermedu,
Eravikulam; P.S.Udayan (1998), Peermedu, Mannavan shola (KL). Suresh Baburaj (1998), Nilgiri; M.B.Viswanathan (1998),
Kolli hills; R.Gopalan (1992), Velingiri. V.S.Ramachandran (1995),
Kodaikanal; M.B.Viswanathan (1992-95), Kolli Hills; K.Ravikumar (1985-95),
Kodai Hills, Megamalai, Pachakumatchi hills; P.S.Udayan (1990-96), Nilgiris (TN). |
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Threats |
Harvest
for medicine (Hm), Loss of habitat (L), Trade of parts (Tp). |
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Trade |
Local,
Commercial. |
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Other comments |
Matthew
(1983) reports that this plant is intensively collected by pharmacists for
bulk export. Being scientifically a curious plant, it is over collected by
Botany students for making herbarium. A good population which was locally
abundant earlier has now become almost extinct in Pyakara region (Suresh
Baburaj, 1998) and in Munnar surroundings (K.Ravikumar, 1999) due to complete
wiping out for export in the name of fruit packing stuffs. Therefore, trade
study is essential. Proportion global population in Tamil Nadu <
1%. |
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Status |
|
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|
-IUCN: |
EN (KA) |
VU (KL) |
EN (TN) |
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- Criteria based on |
Population
reduction (Aa.c) – KA & TN Population
reduction (A1a.c) – KL |
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- CITES |
No |
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- IWPA (1972; 91) |
No |
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- National legialation |
Not in negative list of exports
(Notification 2 (RE-98) dt 13.4.98, 1997-2002) |
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Recommendations |
|
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- Research management |
Monitoring
(M), Limiting factor research (Lr), Habitat management (Hm). |
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- P.H.V.A. |
No |
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Cultivation prog.
Recommendations |
|
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- Cultivation |
Level
1 (ex-situ) |
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- Level of difficulty |
Level
3 (Very difficult due to habitat specificity) |
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Existing cultivation |
None |
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- Names of facilities |
Nil |
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Previous assessment |
VU (Regionally), DD
(Globally) in Camp II (Feb 96) compiled by S.S.R.Bennet, V.Chelladurai,
R.J.R.Daniels, C.G.Kushalappa, Michael Maunder, A.G.Pandurangan, Purshottam
Singh, V.S.Ramachandran, S.R.Ramesh, K.Ravikumar, Sally Walker, Sanjay Molur,
N.Sasidharan, B.V.Shetty, M.Sivadasan, D.K.Ved, Vinay Tandon,
M.B.Viswanathan. |
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Sources |
P.S.Udayan,
K.Ravikumar, S.P.Subramani, N.Sasidharan, V.S.Ramachandran, M.B.Viswanathan,
A.G.Pandurangan, N.Mohanan, A.E.Shanawaz Khan, C.R.Jawahar, V.S.Ramachandran,
Suresh Baburaj, M.B.Viswanathan (persn. observn.). |
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Compilers |
M.Abdul
Kareem, M.Ahmedullah, T.Ananda Rao, N.Anil Kumar, Anjali Wadehra, Anjana
Mudappa, S.Aroumougame, S.S.R.Bennet, Dasappa, J.L.Ellis, K.R.Geetha,
R.Gopalan, B.Gurudev Singh, V.P.Hiremath, V.Irudayaraj, Jagat Ram,
C.R.Jawahar, P.John Jebaraj, C.G.Kushalappa, Mohan Karnat, N.Mohanan,
K.N.Murthy, D.Narasimhan, M.P.Nayar, S.Noorunnisa Begum, A.G.Pandurangan, V.Prabhakaran,
V.S.Ramachandran, S.R.Ramesh, K.Ravikumar, Sanjay Molur, N.Sasidharan,
A.E.Shanawaz Khan, C.Seema, Y.N.Seetharam, B.V.Shetty, B.S.Somashekhar,
T.S.Srinivasa Murthy, D.Stephen, Subhash Mali, S.P.Subramani, T.S.Suma, Sumy
Oommen, D.Suresh Baburaj, M.H.Swaminath, P.S.Udayan, D.K.Ved, Vinay Tandon,
M.B.Viswanathan. |
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