Ocimum tenuiflorum

This plant is called holy basil. It has a strong smell. The leaves can be green or purple. Some stems are hairy. Some flowers are purple too. People use the leaves in tea. They also put it in tasty food. It is used in many curries. Some people use the dried leaves to keep bugs away. It is a very special plant to many people. Do you like plants that smell good?

Holy basil is a plant with a strong smell. People call it tulasi or tulsi. It grows in warm places. It is native to parts of Asia and Australia. This plant can grow into a tall shrub. It has many branches and hairy stems. The leaves are green or purple. Some leaves are wide and sweet. Others have a sharper taste. The flowers are purple. They grow in small groups on long stems.

Many people use this plant in their daily lives. In Thailand, people use the leaves in curries. They use a red kind or a white kind. In India, it is used in Ayurveda. Ayurveda is a type of traditional medicine. Some people also use it to make tea.

For a long time, people used dried leaves to stop bugs. The leaves can keep bugs away from stored grain. The plant is also very special in Hinduism. Some people plant it in their yards. They may light lamps near the plant during festivals. It is a very important part of their worship.

Holy basil is a special plant with a very strong scent. People often call it tulasi, tulsi, or holy basil. It is an aromatic perennial plant, which means it lives for many years. This plant grows well in warm, tropical places. It is native to parts of Asia, Australia, and the western Pacific. Because it grows so well, it has moved to many tropical areas in the Americas. In some places, it is even seen as an agricultural weed.

This plant has a very specific way it grows. It is an erect subshrub with many branches. The stems of the plant are hairy to the touch. The leaves can be green or purple in color. They have a shape called an ovate blade. These leaves grow in a pattern called decussate phyllotaxy. The flowers are purple and grow in small groups. These groups sit on long, thin stems called racemes.

There are different types of holy basil found in India and Nepal. The most common type is called Ram tulsi. It has broad, bright green leaves that taste slightly sweet. Another type is called Krishna or Shyama tulsi. This one has purplish green leaves and is less common. There is also a wild type called vana tulsi. Scientists study the many chemicals inside the plant and its oil. One study found ten special compounds called tulsinol A-J.

People use holy basil in many delicious ways. In Thailand, the leaves are called kaphrao. They are used in stir-fries like phat kaphrao. This dish can use meat, seafood, or rice. Thailand uses a red kind that is very pungent. They also use a white kind for seafood dishes. In Minangkabau cooking, it is used in fish dishes called gulai. It helps to make the flavor of the fish much better.

Holy basil is also important for medicine and religion. It is used in Ayurveda, which is a traditional medicine. For centuries, people used dried leaves to keep bugs away from grain. In the Hindu religion, the plant is very sacred. Some people plant it in their yards or near temples. During the Kartik festival, people light lamps to worship the plant. During the Kati Bihu festival in Assam, people light earthen lamps at the plant's feet.

Ocimum tenuiflorum is an aromatic perennial plant. People commonly know it as tulasi, tulsi, or holy basil. It belongs to the Lamiaceae family of plants. This species is native to tropical and subtropical regions. These regions include parts of Asia, Australia, and the western Pacific. Because it grows so well, it has moved to many tropical areas in the Americas. In some locations, it is even considered an agricultural or environmental weed.

Physically, holy basil is an erect, many-branched subshrub. It grows tall and features hairy stems. The leaves are simple and have a shape called an ovate blade. These leaves can be green or purple in color. They have a slightly toothed margin and a strong scent. The leaves grow in a specific pattern called decussate phyllotaxy. The flowers are purplish and grow in close whorls. These flowers are located on elongated stems known as racemes.

There are three main morphotypes cultivated in India and Nepal. The most common type is Ram tulsi. It has broad, bright green leaves with a slightly sweet taste. The second type is Krishna or Shyama tulsi. This variety is less common and has purplish green leaves. The third type is the common wild vana tulsi. This wild version is known as Ocimum gratissimum. Each type offers different characteristics for various uses.

Scientists study the many phytochemicals found in the plant and its oil. Phytochemicals are natural chemical compounds produced by plants. The plant contains tannins, flavonoids, and eugenol. It also contains caryophyllenes, carvacrol, linalool, camphor, and cinnamyl acetate. One study identified a family of ten neolignan compounds called tulsinol A-J. The aroma is very complex due to these substances. Gas chromatography–mass spectrometry analysis found more than 60 different aroma compounds.

Different studies show different amounts of specific aroma compounds. One study reported that the oil contains 32% camphor. It also found 19% eucalyptol and 17% ⍺-bisabolene. This study noted 14% eugenol, 11% germacrene, and 11% β-bisabolene. However, another study gave different proportions for the essential oil. That study stated the oil consists mostly of 70% eugenol. It also found 11% β-elemene, 8% β-caryophyllene, and 2% germacrene. The remaining parts are various trace compounds, mostly terpenes.

Culinary uses for holy basil are very widespread. In Thailand, the leaves are called kaphrao. They are used in stir-fries like phat kaphrao. This dish can include meats, seafood, or rice. Thai cooks use a "red" variant that is more pungent. They also use a "white" version specifically for seafood dishes. In Minangkabau cuisine, the leaves are used in gulai dishes. These dishes often use fish as the primary protein. Examples include gulai ikan mas, which is carp gulai. Other examples include gulai ikan kakap, or red snapper gulai.

Beyond food, the plant has many practical and spiritual roles. For centuries, people mixed dried leaves with stored grains to repel insects. The essential oil may also have nematicidal properties. This means it can act against certain types of worms like Meloidogyne javanica. In Hinduism, tulasi is a sacred plant. Devotees may plant it in courtyards or near temples. During the Kartik festival, people perform worship by lighting lamps. In Assam, people light earthen lamps at the plant during Kati Bihu. It is also used in Ayurvedic and Siddha medicinal practices.