Display value instead of key in input field with LOV?

Sorry, this is so basic I'm sure it must be easy but somehow I can't find it in the documentation. The LOCATION table contains a foreign key referencing the CLIMATE table. As well as its primary key, CLIMATE has a column called NAME holding the name of the climate (e.g. temperate, tropical, etc.). The user must be able to update the climate value for the location he is working on. So I have a list of values which looks up possible climate names, the user selects the name he wants and the value gets set in the LOCATION table. That works, but the problem is that the input item displays the key value of the CLIMATE record, and I need it to display the value of NAME instead. Of course I can have another field showing the name, but that is messy, the user doesn't understand the key value and shouldn't have to see it. So how do I make one input field display the NAME, while actually updating the key value from the LOV choice?
Thanks

Thank you, Joseba. It does help to some extent. Now I have a non-updatable field with the climate name in it, and below that is the magnifying-glass icon that invokes the list of values. I guess that's not bad, and I can put a label next to the magnifying class saying "Click to select climate". So it's better, but still looks very odd compared to updating fields that are in the LOCATION table itself, where it's an updatable field and the maginfying glass is right next to it. Really the user should not have to behave differently just because the database chooses to hold the value that he wants to alter as a reference to another table.
Is there at least a way to put the list of values magnifying-glass next to the field that displays teh value, rather than underneath it? They are all inside a thing called "af:panelFormLayout", and I tried setting MaxColumns to 2 in its properties, but it still won't let me move the list-of-values field alongside the other one.
Thanks.

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Hi,
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