Furze
Cactus
nettle
Gorse
Barberry shrub contains the letters "bar." It is a spiny shrub known for its bright red or yellow berries and is commonly used as a hedge plant.
A plant which is a small spiny shrub of the pea family which grows in hot, dry climates in America.
juniper
Firecracker Cactus is a cacti species. It is a spiny plant.
Oak
"From" is a preposition that begins with the letter "f."
Fennel is a vegetable. It begins with the letter f.
flying frogs is the only film that begins with the letter f
Fossil is a synonym of old and antique and begins with an F.