Kepong, Selangor, Malaysia.
Johannesteijsmannia magnifica J.Dransf. Arecaceae. CN: [Malay - Daun payung perak], Silver Joey palm. Native to Thailand and Malaysia. Essentially, no trunk up to ca 3.5 m height. Leaves solid, simple, underside silver colored. It is a trunkless palm, with enormous spear shaped, entire up to ca 3 m long, (the first metre of which is petiole) and up to ca 2 m wide. The underside is covered in fine white hairs which give it a silvery appearance. Cultivated as ornamental.Ref and suggested reading:
zipcodezoo.com/Plants/J/Johannesteijsmannia_magnifica/www.pacsoa.org.au/palms/Johannesteijsmannia/magnifica.html