Dendrobium (?) with very long canes
 

My niece gave me this plant back in January. At the time it had only two canes, the one that is stilll the longest and a smaller one that was bent in the middle and looked broken. She said it had never bloomed or shown any growth while she had it. Starting around the end of January, I noticed two new canes showing but no new root growth. Since then it's just kept on growing new canes (should I be calling them pseudobulbs?) but still no new root growth that I've seen. I was watering it every day, but I've cut back to twice a week. The longer leaves on the new canes made me think I must be over-watering it. The longest cane is 34 inches (86 cm.) long. Since I don't have any pictures of the flowers I doubt we can identify it, but I've been going through the Internet Orchid Species Photo Encyclopedia and have only found one species that might be possible -- Dendrobium bifarium Lindl. 1830. I'm only up to number 167 out of over 400 and pretty tired. Other possibly useful info: This is in Thailand, so I presume that' its a species native to Thailand. I've called it a Dendrobium, but I don't really know -- are there other species with this type of cane? Dendrobiums are most common at markets here. I'm sure we can't get a positive ID until it flowers, but I'd kind of like to just hear about possible matches.

That looks a lot like Dendrobium Amethstoglossom, I myself own one and it has the exact same red striping on the canes as your plant has.

Oh, that would be nice. What pretty flowers. And fragrant, too. I guess I should start letting it rest around the end of October. From the Philippines? Wonder how a specimen ended up here. Well, based on advice for the D. discolor I've moved it to an even sunnier location. Now that we're in the rainy season I don't have to fear the noonday sun so much. I have problems with instructions that talk about Spring, Summer, Fall, or Winter, because we have only three seasons here, and the hottest one is from February to May.

Definitely a Dendrobium. The canes do act similar to a pseudobulb, i.e. a storage organ for water and nutrients. This looks very much like it would fit in the Formosae (sometimes called Nigrohirsutae) clan. Are there tiny black or very dark red hairs on the canes? Many of them can become quite tall.