Probably by a week the flower will be gone. If it is walkeri, it should have a collar that is lighter colored than the spathe or the thorat. That seems to be a constant feature in all the walkeri flower pictures that Jan Bastmeijer shows. The flower color can be anywhere from green to yellow to brownish red. The throat is usually reddish. The picture is of a C. walkeri flower I got last spring. I had to pull the flower off the plant to photograph it, The limb appears curled or twisted in the picture, but that is because the flower was starting to dry out. Normally, the limb is straight in C. walkeri.
