Calamus thwaitesii Becc., Fl. Brit. India 6: 441 1892. (syn: Calamus thwaitesii var. canaranus Becc.);
Common name: Rattan Cane • Kannada: ಹಂಡಿಬೆತ್ತ handibetta • Konkani: वेत veta • Malayalam: ആനച്ചൂരല് aanaccuural, തടിയന് ചൂരല് thatiyan cuural, വലിയ ചൂരല് valiya cuural • Marathi: वेत veta
Clustering and high climbing canes; stem to 20 m or more in length, with sheath to 6 cm in diam; sheath armed with spines; spines arising from a raised rim-like surface, flat, black with yellow base; knee and ocrea absent; flagellum, petiole, rachis and sheath armed with stout spines in oblique whorls. Leaves 2 m long; leaflets grouped. Fruit ca. 2 x 1.3 cm, ovoid, scales in 12 vertical rows, with median grooves, yellow with brown margins.
Flowering and fruiting: March-January
Evergreen and semi-evergreen forests
India and Sri Lanka
(Attributions- Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi
ANFEB34 Calamus sp. for identification : 4 posts by 2 authors. Attachments (4)
Can the species be identified with just these photos?
Hard to say. Is it from western ghats? It looks like Calamus thwaitesii, but I am not certain
Thanks, … Yes, it appears to be from Western Ghats.
Definitely from the Western Ghats sir. Specifically, a deciduous forest lying within Aralam WLS Sanctuary, Kerala which is bordered by Nagarhole National Park, Wyanad WLS and Brahmagiri WLS.
Please reconfirm if C. thwaitesii!
Mollem National Park :: Calamus thwaitesii :: DVMAR02/02 : 3 posts by 3 authors. 11 images.
Mollem National Park … Goa
Date: 23 APR 2011 … Altitude: about 200 m asl
Calamus thwaitesii Becc. … (family: Arecaceae)
thanks for showing the habit and habitat and close ups. nice data bank pictures
Additionally … 2 lessons for the photographer … please show the habit and habitat for the rest of us
never pass by a clump of plants that may look forebodingly dark or just some bamboos or such…
something unique may be in there… love it
ANMAR45/67 Calamus sp. for identification : 7 posts by 3 authors. Attachments (8)
…, its good to see your postings; especially on capturing the flowers of Calamus.
A single flower opened up. Attachments (1)
Calamus species in eFloraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ Biotik/ efloras/ books etc., where ever available)
If its from the Western Ghats, its Calamus thwaitesii
Calamus species | ID request 10Dec2010AR01: Calamus species
Jogi gundi (Saint Pond), banks of the river Malapahaari, tributary of Tunga river, Agumbe, Rainforest
Height 12 feet approx, Leaves -length-1.5 meters, width-6cms approx, Parallel veins, shaped like a sword blade
Date/Time-18th Oct 2010. 02.15PM
Location- Place, Altitude, GPS- Agumbe, Shimoga, Rain forest
Habitat- Garden/ Urban/ Wild/ Type-Wild, Western ghats,
Plant Habit- Tree/ Shrub/ Climber/ Herb-Banks of river Malapahaari, tributary of Tunga river
Height/Length-approx – 12 feet
Leaves Type/ Shape/ Size- Shape – length-1.5 meters, width-6cms approx, Parallel veins, shaped like a sword blade
Inflorescence Type/ Size-Not observed
Flowers Size/ Colour/ Calyx/ Bracts-No flowers observed
Fruits Type/ Shape/ Size Seeds- No fruitsfruits –
Other Information like Fragrance, Pollinator, Uses etc.- Not observed
Perhaps Daemonorops crinitus Blume
I think Daemonorops is a correct choice. However, I’ve forwarded the photos to .. of ATREE, Bangalore who is working on Rattans of India. He is also an eFlora member. Waiting to hear from him.
This is certainly not Daemonorops crinita but with the information sent I cannot say exactly what it is – I would need to see a climbing stem – and, of course, inflorescences would help!
Where is the specimen from? Difficult to say what it is from the images, but if its from southwestern India its probably Calamus thwaitesii
Thanks, … Yeah, it’s in SW India:
Agumbe (Kannada: ಆಗುಂಬೆ) is a small village located in Shimoga district, Thirthahalli taluk in the Malnad region of Karnataka, India. It is sometimes called “The Cherrapunji of the South” after Cherrapunji, in Northeast India.
Calamus FOR ID :: Anshi Ghat :: 25 MAY 2013 : 11 posts by 4 authors. 8 images.
Anshi Ghat … Karnataka Date: 25 MAY 2013 … Altitude: 340 – 380 m asl. Calamus sp. … (family: Arecaceae)
I am afraid these pictures may not facilitate any ID to species level. Yet, I am taking a chance if someone familiar with rattans can recognize this species. Since there was no flowering then, the so many pictures below, they all look alike – because they are showing only fruits !!
Calamus thwaitesii ??
Not at all confident …
Possibilities are Calamus pseudotenuis / thwaitesii var. canaranus / karnatakensis / lacciferus / lakshmanae / metzianus
I have not done any comparing.
there’s a cane in the fourth picture. perhaps that’s what we have to dissect for features
and may be the fruits. but that cane is the key
May be Calamus thwaitesii Becc.
Pattern on fruits and inflorescence appears similar in structure.
Thanks very much … I too was thinking of Calamus thwaitesii.
Since I my pictures are not offering sufficient aspects, I think I will leave it at Calamus sp.
At facebook, few suggestions of Calamus rotang came up.
Let us settle at Calamus sp. for want of better pictures.
Thanks, …, Let us find keys and differences between the two.
Yes, I think it could be Calamus thwaitesi
Many thanks to … for his thoughts.
Thanks … for the follow-up.
Let us hope we reach ID from keys and from any tell-tale characteristic from the pictures.
I got a very good document for study along with keys:
Sreekumar V.B “Systematics and phylogeny of the genus calamus linn.(arecaceae) in the western ghats ” Thesis. Kerala Forest Research Institute,University of Calicut, 2004
FIELD IDENTIFICATION KEY FOR RATTANS OF KERALA (pdf)- by C. renuka (2000)- 34 pages.
MORPHOLOGICAL, ANATOMICAL AND PHYSICAL PROPERTIES OF CALAMUS SPECIES OF KERALA FORESTS by C.renuka, K M bhat and V P K Nambiar (1987)- 58 pages.
I studied 2nd for the purpose of this post. Fruit matches with Calamus thwaitesii. This cane grows in evergreen, semi-evergreen and moist deciduous forests between 75 to 900 m throughout the Habit Western Ghats. The distribution extends to Sri Lanka also.
For Calamus rotang:
This species is restricted to the plains along coastal regions and backwaters. Usually seen in the sacred groves and coastal regions of Alappuzha and Kollam Districts. It is reported from Sri Lanka also.
Thank you very very much … for this determined follow-up to resolve the ID.
I will label my pictures accordingly.
Thank you very much for links to useful reference material, and for the crisp information.
Anshi Ghat :: Calamus sp. NOT FOR ID :: DVFEB19/52 : 1 post by 1 author. 2 images.
Anshi Ghat … Karnataka
Date: 25 MAY 2013 … Altitude: 340 – 380 m asl
Calamus sp. … (family: Arecaceae, Palmae) … NOT FOR ID; only for records.
It is same as at Calamus FOR ID :: Anshi Ghat :: 25 MAY 2013