Boraginaceae

Some plants have pretty flowers. They can be blue, pink, or even yellow. Many of these plants have hairy leaves. These hairs can make your skin itch. Bees love to visit these flowers. Some flowers change color as they get old. They might turn from red to blue. This tells bees the flower is empty. These plants are part of a big group. You might know them as forget-me-nots.

The Boraginaceae family includes many plants. You might know them as borage or forget-me-nots. These plants have many different looks. Their leaves can be smooth or have teeth. Most of these plants have hairy leaves. These hairs are made of silicon dioxide and calcium carbonate. These hard parts can make skin itch. This can cause a rash for some people.

The flowers come in many colors. They can be white, yellow, pink, or blue. Some flowers change color as they age. They might turn from red to blue. This uses substances called anthocyanins. This change tells bees the flower is old. It tells them the nectar is gone. Bees are the main helpers for these plants. They move from flower to flower to help them grow. Many flowers start with a coiling shape. Scientists call this a scorpioid cyme. The fruit is a small, fleshy part called a drupe. Famous plants in this group include comfrey and lungwort.

The Boraginaceae family is a large group of flowering plants. You might know some of them as borage or forget-me-nots. Scientists use different ways to group these plants. One way is a narrow view called Boraginaceae sensu stricto. This view includes about 90 to 120 genera, which are groups of related plants. Another way is a broader view called Boraginaceae sensu lato. This older view includes about 155 genera. These plants are important because they are part of the large asterid group.

Many of these plants have a very specific way they grow. Their leaves are often long and narrow. Some leaves are smooth, while others have tiny teeth on the edges. Most of these plants have leaves covered in hairs. These hairs contain silicon dioxide and calcium carbonate. These hard parts can make skin itch or cause a rash. This often happens to people who work with plants, like gardeners.

The flowers in this family are quite interesting to watch. Most flowers have five lobes and come in colors like white, yellow, or purple. Some flowers even change color from red to blue as they get older. This change happens because of substances called anthocyanins. This color change acts like a sign for pollinators. It tells them the flower is old and has less nectar or pollen left.

Pollination is a vital step for these plants to make more. Most of the work is done by insects called hymenopterans. This group includes many types of bees. When the flowers are new, they often grow in a coiling shape. Scientists call this shape a scorpioid cyme. After the flower is pollinated, it produces a fruit. This fruit is often a fleshy part called a drupe.

Many famous plants belong to the Boraginaceae family. You might find comfrey or lungwort in a garden. Other well-known members include alkanet, fiddleneck, and hound's tongue. Some species, like the oysterplant, live near the sea. There is also the purple viper's bugloss, also called Salvation Jane. Scientists continue to study these plants to understand their history. They use systems like the APG IV from 2016 to organize them.

The Boraginaceae family consists of diverse flowering plants. You may recognize them as borage or forget-me-nots. This family is part of a larger group of plants called asterids. Scientists study these plants to understand how they grow and evolve. The way we group them has changed as we learn more. Some experts use a narrow definition called Boraginaceae sensu stricto. This group includes about 90 to 120 genera. Other experts use a broader definition called Boraginaceae sensu lato. This older view includes about 155 genera.

Many plants in this family share specific physical traits. Their leaves are often arranged alternately along the stem. Some plants may have a mix of alternate and opposite leaves. The leaf blades are usually narrow, such as linear or lance shapes. The edges of the leaves can be smooth or toothed. Most species have bisexual flowers, though some taxa are dioecious. This means some plants have separate male and female individuals.

A very common feature is the presence of plant hairs. Most members of the Boraginaceae family have hairy leaves. These hairs are coarse because of cystoliths. Cystoliths are tiny structures made of silicon dioxide and calcium carbonate. These hard parts can cause skin reactions in some people. Gardeners who handle these plants regularly might experience itching or a rash. This is a direct result of the physical structure of the hairs.

The flowers of Boraginaceae follow a fascinating biological process. Many species have inflorescences that form a coiling shape when new. Scientists call this shape a scorpioid cyme. The flower itself usually has a five-lobed calyx. The corolla, or the petals, can be bell-shaped, tubular, or rotate. Colors include white, yellow, orange, pink, purple, blue, or green. Most pollination is performed by hymenopterans, such as bees.

Color changes in the flowers provide important biological signals. In some species, anthocyanins cause flowers to change from red to blue. Anthocyanins are the pigments responsible for these colors. This change happens as the flower ages. It may serve as a signal to pollinators. The color tells insects that the flower is old. It signals that the nectar and pollen are depleted.

Taxonomy, or the science of naming and grouping, has shifted significantly. The APG IV system from 2016 classified Boraginaceae as the only family in the order Boraginales. Previously, the Cronquist system placed them in the order Lamiales. However, researchers found they were not as similar to Lamiales as once thought. A 2016 revision of the Boraginales split the family into 11 distinct families. These include Codonaceae, Ehretiaceae, Hydrophyllaceae, and others. This change helped scientists group plants more accurately based on their true relationships.

There are many well-known examples of plants in this family. Alkanet and borage are very common. You might also see comfrey, fiddleneck, or forget-me-not in various environments. Other members include hound's tongue, lungwort, and the oysterplant. The purple viper's bugloss is also known as Salvation Jane. These plants show the incredible variety within a single family. From sea-dwelling oysterplants to garden comfrey, they occupy many different niches.