Washingtonia robusta
Washingtonia robusta is probably the one you mean.Although you also find the following in the region: Washingtonia filifera (California Fan Palm), Roystonea regia (Cuban Fan Palm), Butia capitata (Jelly Palm), Syagrus romanzoffiana (Queen Palm) amongst others.
Washingtonia robusta (Mexican Fan palm) assuming they wont be zapped by Lightning.
The scientific name for a beach tree is Fagus grandifolia.
Palm tree
palm tree
Bismarckia nobilis
Araca catachu
The main palm found in the Sahara is the Date Palm - Phoenix dactylifera
Paschaloscocos disperta
a palm tree looks like an umbrella
The scientific name of the royal palm is Roystonea regia. It is a species of palm tree native to Cuba and other parts of the Caribbean.
There are many different types of palm trees, but scientific names for common types of palm trees are cocos nucifera (coconut palm tree) and bismarckia nobilis (Bismarck palm tree).