Yes, the timber called 'Tulipwood' is an American species bu,t in the UK, its genus (liriodendron) is known as Poplar. For cope & stick panels and doors it's perfect (and takes a paint finish really well) ...I like beech for painted stuff tulips a bit soft ( and american) there both a bit unstable tbh. having priced some oak at over £10000 per cubic metre! I'd not hesitate to use lipped mdf.