Australian Orchid Identification
 

I just bought these Orchids at the local flea market. Can somebody identify the type of Australian Orchid that they are from this attached photo?
Attachment 153946

First, Welcome!
They are Dendrobiums. Impossible to identify beyond that without flowers, even then it will probably not be possible to do more than guess at its ancestry if it is a hybrid, possible to come closer if a species.

Where do you live? That would help at least make a guess as to culture.

Also, I am going to move this to the Identification forum, you will be more likely to get additional input.

Some kind of dendrobium, looks like they have at least some influence from Den. kingianum. Pretty much impossible to say more than that without seeing flowers though.

Welcome to the Orchid Board!

Thank you Roberta. I live in the Pittsburgh, PA area. I just started learning how to care for Orchids instead of buying them at the store in full bloom and then watching them die over the next several months.

If those are temperate-zone Australian Dendrobiums (and that's quite likely), they are tough as nails. Give them high light, water well during spring, summer, and fall. Less water in winter (let them get just dry, then water again) If they can experience a temperature drop in the winter (for instance, closer to the window than you would put the warmth-loving orchids like Phalaenopsis) that would increase the odds of blooming.

Dendrobium Kinglamium
 

Hello Roberta,

I spoke with the guy at the flesmarket where I purchased my Orchids and he said they are D. Kinglamium.

Den. kingianum... so the info for temperate-zone Aussie Dendrobiums is what you should follow. Fine outside in the spring once night temperatures get reliably above about 50 deg. F. In the fall, temps can go a little lower since it'll be acclimated as the weather cools.