There are many hundreds of handsome hybrids made with Oncidium orchids and with closely to them related genera. Some of them quite complex and complicated and this is one of them. It's Onc. Chrysomorphum x Oda. (Cherubino x Wearside Pattern) and it's currently in flower.
My orchid flowers at the end of our autumn/ early winter with masses of bright, yellow/orange blooms with many long flowering arching spikes that about 50 cm long. It's slightly fragrant, just a hint of cinnamon , not overpowering and very pleasing. It's always nice to see vibrant flamboyant colors in autumn and winter and I get my "color therapy" fix from this one.
Despite its complicated background it's quite easy to cultivate and to bring it to flower, it like well-drained bark mix and plenty of moisture during warm weather with less watering during colder months. It can be mounted on tree-fern slabs or cork mounts.
It's another beautiful orchid to have in one's collection that rewards with exotic, special, colorful, flamboyant blooms.