Plants That Start With X

Last Updated on December 14, 2022 by Clarisse Walters

We live on a planet of breathtaking and mesmerizing beauty that is home to the most diverse and varied life forms in the known universe.  The flora and fauna that create such incredible biodiversity add to the charm and character of every location.

From the hottest deserts to the coldest tundras, plant life can be found everywhere.  From single flowers to gigantic trees, the world is home to over 390,000 known species of plants on earth, a quite baffling and mind-boggling number!

This article will delve into the world of plants that start with X.  They come in all shapes and sizes and can be found across the globe in all manner of habitats.

List of plants starting with X

The plants beginning with X in this article are:

  1. Xanthoceras Sorbifolium
  2. Xeranthemum Annuum
  3. Xanthisma
  4. Xyris Difformis
  5. Xerochrysum Bracteatum
  6. Xylobium Variegatum
  7. Xerophyllum Tenax
  8. Xanthorrhoea-Johnsonii
  9. Xylosma
  10. Xanthorrhoea-Latifolia

Video – Xylosma Congestum

Read on to learn about some of the fascinating plants that start with the letter X.

Xanthoceras Sorbifolium

Xanthoceras Sorbifolium

Xanthoceras sorbifolium is a native species of Northern China and is also known as the yellowhorn, golden horn, and Chinese Flowering Chestnut. 

A species of flowering plant from the soapberry family Sapindaceae, it is the only species in the genus Xanthoceras. In the 19th century, the plant was imported to Russia, and it continues to grow there today. 

This perennial plant will grow year after year.  A small tree that can grow up to 26 feet in height, when it blooms, the flowers are formed of five white petals with the center having a red tint. 

The plant produces a chestnut-tasting fruit, though the seeds, flowers, and leaves are also edible.

Xeranthemum Annuu

One of six species of Xeranthemum, it is also known as annual everlasting or immortelle. Xeranthemum annuum is native to Eastern Europe and Western Asia, though it has now become naturalized throughout Europe.  A member of the Asteraceae family, which is also known as the sunflower family, the aesthetic similarities are clear to see. 

The leaves and foliage have a silver-gray tint that delightfully contrasts with the flowers when they bloom in the summer months. The plants produce vivid pink flowers with numerous long, thin, petals that look delicate and rather sensational.

It is widely recognized as a symbol of eternity and immortality, increasing the popularity of the plant across the world. This can be an invasive species, so it’s important to carefully place them if planted directly in the soil.



Xanthismais a genus of ten species of flowering plants in the Asteraceae or sunflower family, and it is commonly known as a sleepy daisy.  The name stems from the Greek words “xanthos” (yellow) and “-ismos” (condition).  The earliest known description was in 1836 from research material entitled “The Mexican Province of Texas”.

A native to the US, Mexico, and Canada, most species are similarly colored with bright yellow, daisy-like flowers at the top of the stems. Usually, they bloom in spring, although this can vary with the climatic conditions. They symbolize endurance, which is fitting due to them being drought-tolerant.

This tolerance also makes them suitable for use in xeriscape gardening.  This is a kind of gardening which aims to reduce water consumption and is popular in drier and arid environments.

Xyris Difformis

Xyris Difformis

Popularly known as bog yellow-eyed-grass, Xyris difformis  is a member of the Xyridaceae or yellow-eyed-grass family.  There are three species of flower that can be found across the US and Canada, as well as some areas of Central America. It grows on the shores of lakes and ponds, in bogs and fens, and in sandy or peaty soils.

A perennial herb that can grow up to three feet in height, its grass-like leaves can be twenty inches long, with the flowers being yellow or white. They bloom from summer and through autumn, a delicate and dainty addition to any garden. 

Xerochrysum Bracteatum

Xerochrysum Bracteatum

A mesmerizing flowering plant that’s part of the Asteraceae or sunflower family and native to Australia.  It is rather widespread there, growing in a wide range of environments with varying conditions, including dry deserts,  sub-alpine areas and humid forests.

First described in 1803 and formerly known as Helichrysum bracteatum, in 1990 it was moved to a new genus Xerochrysm.

The leafy foliage is a gray-green that provides a fantastic canvas for the vivid and vibrant flowers that bloom from spring to autumn. In Australia, the flowers are usually white or a golden yellow, though European variations have been cultivated to include stunning pinks, reds, and oranges.

They are also an essential part of the ecosystem in that they provide nutrition for butterflies and moths, native bees, beetles, and even grasshoppers.

Xylobium Variegatum

Xylobium Variegatum

This magnificently exotic flower is a species in the Xylobium genus that is native to South America.  It can be found across the continent in Costa Rica, Venezuela, Colombia, Bolivia, Brazil, Peru, Ecuador, and French Guiana.

Typically, it grows at elevations between two and seven thousand feet, with the breathtaking mountain ranges through South America being the ideal habitat for the plant to thrive.

When it blooms, the petals are white, while it has a yellow and spotted lip, hence the common name The Irregularly Spotted Xylobium. It does require a great deal of water to thrive, though in the winter months watering must be reduced significantly.

Xerophyllum Tenax


The earliest known documentation of the species came from members of the Lewis and Clark expedition that took place across the US between 1803 and 1806. It was this group that attributed the common name of bear-grass, despite it not being a grass. Instead, it is a member of the Melanthiaceae, or corn lily family, and is native to North America. Another name associated with the plant is Indian Basket Grass, due to the Native Americans using it for weaving baskets. 

The flower thrives in scorched areas and can even survive ground surface fires. Their flowers are white and lightly fragrant and are densely packed at the tip of the stalks that can be up to five feet in height.  They provide food to numerous species including bears, dears, and elks.



Commonly known as Johnson’s Grass Tree after the famed Australian botanist L.A.S. Johnson, Xanthorrhoea johnsonii is native to Eastern Australia.  Their single trunk can grow to be sixteen feet tall, with the foliage being incredibly strong and resilient to weather conditions, hence another popular name of “steel grass”.

Blooming from autumn to summer, the flowers are a milky-white and a corn-like spike head nestles above the leaves. It requires generous sunlight and well-drained soil to thrive and is commonly used to build fences due to its size, strength, and resilient nature.



A member of the Salicaceae or willow family, Xylosma is a genus of close to one hundred species of evergreen shrubs and trees.  The name stems from the Greek words xylon (wood) and osmé (smell) due to some species having particularly fragrant wood.

The genus is mostly found in tropical and subtropical habitats, with species growing in Central America, the Caribbean, northern South America, southern Asia, northern Australasia, and the Pacific Islands.

The leaves are a fresh green with pinkish stems, whilst the flowers are small and a whitish-yellow in color, with a pungent aroma.  The plant produces a small purple-black berry, though these are toxic to humans and many animal species.



A plant native to Australia, predominantly in New South Wales and Queensland. A member of the genus Xanthorrhoea, also known as a grass tree species. It grows best in sandy and gravelly soil, and it is able to survive the harshest of conditions.

Their toughness makes them easy to care for, as they require little supervision and infrequent watering.  Their trunk can grow to be up to twelve feet in height, and they are known to attract insects and birds, making them a popular choice for those living in drier conditions.


There is a brilliant array of plants and flowers that start with the letter X, even more when you consider the Latin names!  From grass trees to delicate flowers, from arid deserts to humid forests, these plants can be found all over the world.

Hopefully, after reading this, you will feel enthused to continue your journey of discovery into the world of plants!

Frequently Asked Questions

When Is The Best Time To Plant Xeranthemum?

They can be planted year-round, though spring and autumn are generally regarded as the best time. First, sow the seeds a quarter-inch deep in flowering position, then cover it and keep it moist. They usually flower from late spring to mid-summer.

What is Xeranthemum From?

This plant is part of the sunflower family, though it doesn’t typically resemble a sunflower. It has purple flowers, and a silvery head. It is most commonly found in the South of Europe.

Which Plant On This List Will Attract Insects To My Garden?

Xerochrysum bracteatum is known to attract all sorts of insects including butterflies and moths, beetles, grasshoppers, and bees. Planting this is sure to add to the biodiversity in any garden and make it a haven for creepy crawlies.

They are also an essential part of the ecosystem in that they provide nutrition for butterflies and moths, native bees, beetles, and even grasshoppers.

Clarisse Walters
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