Rowan has been shooting up the charts on both the boys' and the girls' side, carrying the appeals of a trendy "o" vowel, a soft sound, and a nature connection to top it off. The modern variation Rowyn has followed in its footsteps and while the traditional spelling is used five times more often, Rowyn is still given to around 250 girls each year.

Azami has a prickly image and feel — reinforced by the thistle's image in Eastern mythology as one of defiance. A name that spans two widely divergent cultures, Azami might make the perfect international choice, at once unusual and easy to comprehend.

Avis is a bird name that's been in hibernation for awhile, possibly due to the car rental association, but it could make a return on the wings of Ava. Baldwin brother Daniel chose it for his daughter.

Jupiter may be known as the father of all the gods, but it's baby girls who have claimed his name for their own. Mythological and celestial baby names are hot across the board, so Jupiter was bound to rise in popularity. But the reason it's currently mostly female in the US is thanks to its similarities to the trendy feminine name Juniper.

While Lillian is the English version of this elaborated flower name and Liliana is the authentic Spanish and Portuguese spelling, Lilliana is a familiar and perfectly usable option in the US.

The attractive Euan and Ewan are just coming onto the U.S. radar, via actor Ewan MacGregor and Harry Potter's Euan Abercrombie.

Khione was the name of several minor figures in Greek mythology, of which the most notable is the nymph who Hermes turned into a snow cloud. Khione works as both a high-brow mythological name and a Kardashian-trendy K name.

A felicitous combo of two sweet names; also a Queens, New York neighborhood.

If you love Calliope and Callista, you'll love Calanthe, which combines the trendiness of the Greek 'cal' names with the equally fashionable "the" ending (like Xanthe and Evanthe) and a connection to the beautiful Christmas Orchid. Color Calantha one of the more unusual and captivating names for Christmas babies.

An unusual flower name deriving from the Latin word for lily (lilium), this variant has always been popular in Scotland.

Kassia is the k-styled spelling variation of rising star name Cassia, an obscure but attractive botanical choice drawn from the cassia tree, which produces a cinnamon-like spice. The biblical Keziah is related.

Sierra is a name borrowed from the western mountain range, with Latin rhythm and cowboy charm. It is now probably past its peak for girls, but remains a striking nature-inspired choice for boys, with a strong, surprising and energetic sound. The meaning refers to the sharp, irregular peaks of some of the Western mountains such as the Sierra Nevada.

Less known than other Cornish beauties like Demelza, Elowen and Kerensa, Elestren is a pretty Cornish botanical name ripe for wider usage.

This Greek flower and mythological choice doesn't make it into the pantheon of possibilities because of its association with narcissism. But narcissa is December's flower of the month, so Narcissa and Daffodil theoretically make perfect names for December babies.

A familiar name in India, Avani has a soft but spirited sound and an attractive meaning, perfect for lovers of nature and those looking for a name to celebrate the planet. Derived from the Sanskrit word for "earth", English speakers are likely to pronounce it with three syllables (UH-vah-nee), while in Hindi, it is said as AHV-nee and in Marathi as ah-VAH-nee.

Rayne may be considered a modern respelling of the nature name Rain or a variation of the surname Raine, which comes from the Old French word reine, meaning "queen."

Woods is a nature name that is a cousin to the stylish Brooks and Forest, evoking the entire world of trees. Sometimes used as a diminutive of Woodrow or Edward, Woods is rugged and outdoorsy, with a preppy surname-style feel too.

Nasrin has a strong sound and lovely floral meaning. International variants include the Turkish Nesrin and Egyptian Nesreen.

This obscure name from Greek mythology (Merope was one of the Pleiades) is better known from J.K.Rowling's Harry Potter series, as the name of Tom Riddle's ill-fated mother.

This name of the bright orange flower found in Asia has been used occasionally in English-speaking countries. A notable namesake is Tiger Lily, the Native American princess from Peter Pan. Read more about Tiger Lily and other Disney Princess Names in our featured blog.