Lamiaceae

Many plants belong to one big family. These plants are often mints or sages. Many of them smell very good. We use them in our food. You might eat basil or rosemary. Some plants are even used as medicine. Most of these plants are small and soft. Their stems are often shaped like a square. Some can grow into big trees. They can grow in many places around the world. It is fun to smell these plants!

Many plants belong to a big group called Lamiaceae. People often call these plants mints, sages, or deadnettles. This group is very large. It has about 6,900 to 7,534 different species. These plants grow all over the world.

Many of these plants have a strong scent. We use them as herbs in our food. You might eat basil, mint, or oregano. Some are used as medicine, like catnip. Some plants in this group are small. Others can grow into shrubs or even big trees.

There are special ways to spot these plants. Their stems are often shaped like a square. Their leaves often grow in pairs. The pairs sit at right angles to each other. This pattern is called decussate. The flowers are also unique. They have petals that join together. This makes an upper lip and a lower lip. This is why some people call the group Labiatae. This name comes from a Latin word for lip. Most scientists now use the name Lamiaceae instead.

The Lamiaceae family is a huge group of flowering plants. You might know them as mints, sages, or deadnettles. These plants are very important to people everywhere. Many of them have a strong, pleasant smell. We use many of these plants as culinary herbs. You might eat basil, rosemary, or oregano in your meals. Some are used as traditional medicines, like catnip or bee balm. Most are small plants, but some can be shrubs or trees.

There are special ways to recognize these plants. Their stems are often shaped like a square. This means if you cut the stem, it looks like a box. Their leaves often grow in pairs. These pairs sit at right angles to the pair below them. This pattern is called decussate. The flowers are also very unique. They have five petals that are joined together. This creates an upper lip and a lower lip. This is why some call the family Labiatae.

Scientists have spent a long time studying these plants. In the 1990s, they looked closely at how they are related. They used phylogenetic studies to learn about their family trees. These studies showed that some plants belong in Lamiaceae instead of other groups. In 2004, a big revision was published. This work described 236 different genera, which are groups of related plants. Botanists now mostly use the name Lamiaceae for this group.

This plant family is found all over the world. It is a cosmopolitan group with many different members. There are about 236 genera in the family. Some estimates say there are 6,900 to 7,200 species. Other lists say there are as many as 7,534 species. The largest group is called Salvia, which has 900 species. Other big groups include Scutellaria with 360 species and Stachys with 300 species.

We use these plants in many different ways every day. Some people grow them just to look at in gardens. Plants like coleus are grown to be ornamental. We also grow them to eat. Some plants provide seeds, like Salvia hispanica, which is chia. Other plants give us edible tubers, like the Chinese artichoke. Many people grow them from stem cuttings because it is easy. This makes them very popular to grow at home.

The Lamiaceae family is a massive group of flowering plants found all over the world. Most people know these plants by their common names, such as mints, sages, or deadnettles. This family is incredibly important to human life because it includes many aromatic plants. Aromatic means they have strong, pleasant scents. Many species are used as culinary herbs to flavor food. Others are used in traditional medicines, such as catnip, bee balm, or skullcap.

Scientists identify Lamiaceae members through specific physical traits. One common feature is the stem, which often has a square cross section. This means the stem looks like a box if you cut it. The leaves also follow a specific pattern. They emerge in opposite pairs, and each pair sits at a right angle to the one below it. This growth pattern is called decussate. The flowers are also unique. They are bilaterally symmetrical, meaning they can be divided into two matching halves. The five petals are fused together to form an upper lip and a lower lip. Because of these lips, some people use the alternative name Labiatae, which is Latin for "lip-bearing."

These plants come in many different forms and sizes. While most members are herbaceous, meaning they are soft-stemmed plants, some are much larger. Some species grow as shrubs or even trees, such as teak. A few species even grow as vines. Humans cultivate these plants for many reasons. Some are grown as ornamental plants, like coleus, just for their beauty in gardens. Others are grown for their edible parts. For example, Salvia hispanica is grown for its seeds, known as chia. Other species, like the Chinese artichoke, are grown for their edible tubers.

Lamiaceae is a cosmopolitan group, which means it is spread across the entire globe. The family is enormous in terms of variety. It contains about 236 genera, which are groups of closely related plants. Estimates for the number of species vary. Some sources list between 6,900 and 7,200 species. However, the World Checklist of Selected Plant Families estimates there are as many as 7,534 species. The largest genus is Salvia, which contains 900 species. Other large genera include Scutellaria with 360 species and Stachys with 300 species.

Our understanding of this family has changed due to scientific discovery. In the 1990s, researchers performed phylogenetic studies. These are studies that look at the evolutionary relationships between organisms. These studies suggested that many plants previously placed in the Verbenaceae family actually belong in Lamiaceae. This changed how botanists classify the plant kingdom. In 2004, a major revision was published to organize the family. This work provided keys to describe the 236 genera. Since then, scientists have continued to refine these groups. For example, the genus Clerodendrum was once very large with over 400 species, but it was narrowed to about 150 species by 2010.

Modern science uses even more advanced tools to study these plants. Researchers use large chloroplast gene datasets to clarify how different subfamilies relate to one another. In 2004, the family was divided into seven distinct subfamilies. These are the Symphorematoideae, Viticoideae, Ajugoideae, Prostantheroideae, Nepetoideae, Scutellarioideae, and Lamioideae. There are also ten genera that have not been placed into a specific subfamily. These include plants like Tectona and Callicarpa. Understanding these subfamilies helps scientists map the complex history of plant life.

Because many Lamiaceae species are easy to grow from stem cuttings, they are very common in human environments. This ease of cultivation helps spread these plants through gardens and farms. Whether they are providing flavor to a meal, medicine for an ailment, or beauty to a landscape, these plants are deeply connected to human history. From the massive Salvia genus to the small, fragrant thyme, the Lamiaceae family remains one of the most diverse and useful groups in the natural world.