Palm trees are iconic symbols of the tropical landscapes in South Florida, including Key West. Several species of palm trees thrive in the warm and subtropical climate of the region. Here are some common palm trees you might find in South Florida:

1. **Royal Palm (Roystonea spp.):** The Royal Palm is often considered the quintessential palm tree of South Florida. It has a tall, straight trunk and a crown of feathery fronds. The Florida Royal Palm (Roystonea elata) is native to southern Florida and the Keys.

2. **Coconut Palm (Cocos nucifera):** Known for its association with tropical beaches, the Coconut Palm is widespread in South Florida. It has a tall trunk, large fronds, and produces coconuts.

3. **Date Palm (Phoenix dactylifera):** The Date Palm is characterized by its slender trunk and long, arching fronds with pinnate leaves. It's a common ornamental palm in South Florida.

4. **Foxtail Palm (Wodyetia bifurcata):** The Foxtail Palm is popular for its unique appearance, with fronds that resemble a fox's tail. It's a relatively small to medium-sized palm and is commonly used in landscaping.

5. **Sabal Palm (Sabal palmetto):** The Sabal Palm, also known as the Cabbage Palm, is the state tree of Florida. It has a distinctive, rounded trunk and fan-shaped fronds. It is native to the southeastern United States.

6. **Areca Palm (Dypsis lutescens):** Also known as the Butterfly Palm or Golden Cane Palm, the Areca Palm is a clumping palm with feathery, arching fronds. It is often used as an ornamental plant in landscaping.

7. **Queen Palm (Syagrus romanzoffiana):** The Queen Palm has a slender trunk and feathery, arching fronds. It is commonly planted along streets and in residential areas for its elegant appearance.

8. **Christmas Palm (Veitchia merrillii):** This palm gets its name from the clusters of bright red fruit that resemble Christmas ornaments. It is a smaller palm, making it suitable for smaller landscapes.

9. **Triangle Palm (Dypsis decaryi):** The Triangle Palm is named for its triangular-shaped fronds. It has a unique and striking appearance and is often used in landscaping for its ornamental value.

These are just a few examples of the diverse palm tree species that contribute to the lush and tropical landscape of South Florida, including Key West. Each palm species has its own characteristics, making the region's palm-lined streets and landscapes visually appealing and distinctly tropical.