Mistletoe brings to mind a be-ribboned bouquet hung beneath doorways to catch unsuspecting party-goers in a kissing trap, but the evergreen plant has a long history in Western holiday tradition. The original mistletoe of Greek and Celtic traditions, Viscum album , was a symbol of masculinity, vitality, health, and fertility, and its usage as a treatment for barrenness in human and animals is reportedly very ancient. The majority of mistletoes are obligate hemi-parasites, meaning they cannot live without a host but do engage in some photosynthesis with their foliage. The connection between mistletoe and the Winter Solstice was likely made as the species remains evergreen and bears fruit throughout winter, creating festive decoration is the coldest of winter wonderlands. Depiction of a Druid...

The poinsettia is a quintessential part of typical holiday decor. Its bright red, burgundy, or white foliage are common sights in locations both private and public throughout the winter months, from apartment balconies and church altars to bank lobbies and coffeehouses.

“Wow!” is the most frequent comment from visitors viewing the two oldest plant specimens in the BRIT Herbarium, both of which were collected by Dr. Thaddeus Haenke in 1791.

It's 1852 in the newly-formed Republic of Texas. A devoted botanist collects a Cryptantha oblata specimen in the forgotten town of Frontera...