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Alphabetical List of Perennial Flowers: Perennial Flowers U-Z

In this final post in the series, I will round out the Alphabetical List of Perennial Flowers with the letters U-Z. By the end of this list, I will have described over 270 different genus and species of perennial flowers. The research for these flowers has taken scientists and botanists all over the world, to many exotic and unlikely locations where some of the species are found. From the Arctic Circle to the Tropic, and south to the southernmost tip of South America and South Africa, perennial flowers survive and flourish, and are essential to the ecosystem. In fact, without perennial flowers and the pollinators who help spread them, the survival of many species on Earth, including Humanity, would be impossible.

Skip to section: U   V   W   X   Y   Z

Perennial Flowers: U

Urn Plant - A member of the bromeliad family, the Urn Plant is a Brazillian native which is cultivated as an ornamental houseplant. Its long, dark green foliage is topped by a crown of serrated rosette leaves, between which beautiful, two-lipped flowers with purple, pink or red petals.

Ursinia - Ursinia is a genus of plants, related to chamomile, and in the Daisy family. There are 43 different species of this perennial, which have matte, medium-yellow ray florets with a band of darker color (red, black, or green) at their base, which surround a central yellow disc floret. Similar to other

Uva Ursi - Commonly called the Bearberry, Uva Ursi is a perennial herb which is commonly used in herbal medicine in the treatment of bladder and kidney conditions. It is said to reduce internal inflammation of the urinary tract. Uva Ursi grows as a large shrub with red berries that are consumed en masse by bears. Before the berries, the shrub is covered in dainty, pink tubular blossoms which grow in clusters at the tips of its branches.

Perennial Flowers: V

Valerian - Known for it's powerful sedative properties, Valerian is a flowering, herbaceous perennial which is prized in herbal medicine. Valerian flowers have a sweet, unique fragrance which was once prized in perfumery. Today, valerian's fragrant roots are used to create herbal teas and tinctures to treat insomnia.

Verbena - Verbena is a genus of flowers which contains over 250 species of both perennial and annual flowering herbaceous plants. They grow tiny flowers which can be blue, pink, white or purple, and each flower has five petals. Verbenas are used in traditional medicine to promote lactation, though they can also be brewed in a higher potency formula to induce abortions. Some Verbenas are fragrant and have a perfume note similar to lemons, and they are used in the production of essential oils for Aromatherapy.

Verbena

Veronica - Veronica is a huge genus within the plantain family which is comprised of over 500 different species. Commonly known as speedwell or gypsyweed, Veronicas are herbaceous perennial shrubs which grow all over the world. Veronica is used as a food source and is said to taste like watercress. Medicinally, it is used in the treatment of respiratory conditions by herbalists. Only some species are grown as ornamental garden plants. The ornamental varieties, such as Veronica Officinalis grow tall inflorescences of blue, pink or purple flowers, in a form similar to the Butterfly Bush.

Viburnum - This genus of herbaceous shrubs contains over 150 different species. Viburnums are symbolically important to the people of Ukraine, who use it as part of their wreaths. This shrub is covered in simple leaves and clusters of flowers which may be white or pink, and are strongly fragrant. The flowers eventually give way to fruit, which may be either edible or toxic, depending on the species.

Violet - The Violet or Viola family is made up of many different species of perennial and annual flowering plants. There are many hundreds of perennial cultivars. Violet's flowers are generally five-petaled, with four bilaterally-symmetrical petals and one hanging lower lobe. The petals may be any color, including many different shades of purple, yellow, blue and red. Some species are edible and are eaten in salads, others are used in the production of perfumes, and some other species are used medicinally, mainly for its high level of antioxidants.

Perennial Flowers: W

Wallflower - See Erysimum

Wandflower - A native of Southern Africa, the Wandflower is a bulbous perennial which have six multicolored petals that surround a central stamen. Scientifically known as Sparaxis Tricolor, the flowers are typically three colors, which are yellow at their base, a central stripe of brown, and tips of brilliant orange-red color.

Water Hyacinth - Water Hyacinths are aquatic perennials which are native to the Amazon region of South America. Outside of this region, the Water Hyacinth is a highly problematic invasive species which is known to completely cover ponds and lakes, killing other plants and aquatic life such as fish and amphibians in the process.Water Hyacinths grow rapidly, making them a popular choice for the production of a biofuel crop. Furthermore, they are used as food, medicine, and in the production of textiles. The flowers may be white, blue or purple, and the upper petal on some varieties is multicolored, in various patterns of purple, yellow and white.

Water Lily - Water Lilies are showy perennials which are cultivated as ornamental garden flowers. The Water Lily family has roughly 70 species, which may be night blooming, day blooming, or hardy. Water lilies are large beautiful flowers which float between lily pads in aquatic garden settings. Some species' flowers rise out of the water on a long stem. The flowers may be a range of colors or combinations of colors, from yellow to white to red.

Watsonia - Also known as Bugle Lilies, Watsonias are bulbous perennials which are prized in gardens for their easy-to-grow flowers and foliage. The Watsonia is a genus within the Iris family, and its members are native to the region of Southern Africa. The flowers are large and tubular with colors ranging from pink, white, yellow, red or purple.

Wedelia - A genus within the Daisy family, Wedelia is more commonly known as creeping oxeye. There are 104 known species. The flowers of Wedelia are small and grow low to the ground atop its sprawling, rhizomatic foliage. Flowers contain at least eight ray florets, golden yellow in color, which surround a yellow disc floret. Some species have ovate or rounded petals, while others have flat or toothed lobes.

Weigela - Weigelas are deciduous shrubs native to Asia, which bear pink or red flowers in the early summer. The flowers are rarely larger than two inches in diameter. They have five rounded petals and a tubular base. The shrub grows between three and fifteen feet in height and is attractive to hummingbirds and butterflies.

Whirling Butterflies - This perennial gets its name from its appearance on a breezy day, where its tiny white flowers which grow on long, dainty stems seem to flutter like butterflies. The flowers usually have five white petals in an ovate shape, have many central stamens.

Wild Rose - The Wild Rose is a true rose which is native to northern regions of Europe, Asia, and North America. It has five large, rounded pink petals and a cluster of yellow stamens.

Windflower - See Anemone

Wisteria - Wisterias are some of the most stunning, colorful perennial flowers in any garden. They are actually members of the bean family (legumes), and there are nine different species. Wisterias are climbing vines which may also spread along the ground, and they typically climb up to 60 feet in height. Wisterias have long, hanging inflorescences of colorful, tubular flowers. They are most commonly purple, lavender, or blue, but can also be found in various shades of white, cream, pink, and yellow.

Wisteria

Winter Daffodil - The Winter Daffodil is distinguished from the common Daffodil in that it blooms in the autumn and survives throughout the winter. Winter Daffodils have golden yellow flowers which each have six petals and six stamens.

Perennial Flowers: X

Xanthoceras Sorbifolium - A member of the soapberry family, the Xanthoceras Sorbifolium is a woody perennial that is also called the Yellowhorn or the Chinese Flowering Chestnut. Its flowers, white in color, grow along highly branched inflorescences in the spring months.

Xeranthemum - This is a member of the daisy family, which resembles any other daisy except for its color. The flowers of the Xeranthemum have purple ray florets with a deep purple disc floret.

Xerophyllum - Xerophyllum is native to North America, with two distinct species. One species grows along the western side of North America, and the other along its eastern side. Also known as beargrass, Xerophyllum grows tall spikes with fluffy clusters of white flowers. The foliage of Xerophyllum is used by Indigenous Americans in basket weaving.

Xylobium - Xylobium is a genus comprised of roughly 35 species of orchid. The flowers of Xylobium are native to the tropical regions of Central and South America. They are distinct in that their stems are woodier than other Orchids.

Xyris Difformis - Native to North America, Xyris Difformis is a perennial grass which can reach up to three feet in height and grow long, tiny yellow flowers which each has only three petals with a cluster of yellow stamens at their center.

Perennial Flowers: Y

Yarrow - See Achillea Millefolium

Yarrow

Yellow Bell - Also known as Allamanda, Yellow Bells belong to a genus of the Dogbane family. They grow large, canary-yellow flowers with five lobes which grow in inflorescences. The plant is valued in both modern and traditional medicine for its unique compounds that can be used to fight cancer, HIV, and liver disorders.

Perennial Flowers: Z

Zenobia - Zenobia is a genus also known as "Honeycups" for its clusters of flat, white flowers which resemble bells that hang from the tips of its branches. This perennial is native to North America and is a member of the Heather family.

Zinnia - Zinnia is a genus of perennial flowers within the Daisy family which grow brightly colored, long stem flowers. The form of these flowers is variable, which can resemble a common Daisy with a row of ray florets, or can have rounded petals or even a domed shape. They grow in every color, from white to yellow, orange, red, or purple.

Zephyranthes - Also known as the Rain Lily, Zephyranthes have white, yellow or purple showy flowers which are short-lived. The flowers tend to grow in large bursts during rainy weather, and then quickly die back within a day or two. The blooms are frequently replaced during the growing season. Zephyranthes is toxic, though it produces unique compounds which scientists may isolate to create medicine.

To read about other flowers on this list, visit the following pages:
A-D       E-H       I-L       M-P      

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