Silk Tree (Albizia julibrissin)

Also known as mimosa trees, these small trees produce silky flowers that resemble little pom-poms. If that’s not enough of a reason to love them, they have a uniquely sweet fragrance. Although these trees are native to much of Asia, they have become invasive in parts of the United States. So keep that in mind before you add one of these trees to your yard.

Black Bat Flower (Tacca chantrieri)

It’s uncommon to find a black flower. It’s extraordinarily rare to come across a dark flower as strange looking as the black bat flower. These plants are native to Southeast Asia, where they grow in the understories of forests. Bat plants also come in other colors, but there’s something magical about this one.

Girlfriend Kiss (Palicourea elata)

While the small yellow flower of the girlfriend kiss plant isn’t anything special, the bright red bracts surrounding the bloom are unlike anything else you’ve ever seen…except for a pair of lips, of course. This plant is extremely sensitive to environmental conditions and is rarely found outside of its native habitat in South and Central America. And since its native rainforest environment is being threatened by deforestation, this plant has become endangered.