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Scientific name: Cymbopogon spp.
Family: Poaceae
Citronella was first introduced in India in 1959 from Indonesia, specifically from Java Island, which is why it is also known as Java citronella. This fragrant grass, belonging to the Poaceae family, yields essential oils when steam-distilled. The resulting citronella oil (Cymbopogon winterianus Jowitt) is widely used globally in various industries, including flavoring, soap, perfumery, and cosmetics. There are two main types of citronella: Ceylon and Java. The species C. nardus yields Ceylon-type oil, while C. winterianus yields Java-type oil. Java-type oil
is preferred over Ceylon-type oil due to its higher citronellal content, ranging from 30-38% compared to 20-25% in Ceylon-type oil.
Origin and distribution
Citronella originated in tropical Asia, specifically in Indonesia (Java Island) and Sri Lanka. Today, it is cultivated in many tropical and subtropical regions worldwide. In India, citronella is grown in several states, including Maharashtra, Uttar Pradesh, and Madhya Pradesh. It is also cultivated in other parts of Southeast Asia, such as Malaysia, the Philippines, and Thailand. Citronella is also grown in Africa, Central and South America, and the Pacific Islands, where the warm and humid climate provides ideal conditions for its growth.

Scientific name: Ammi majus L.
Family: Apiaceae
Ammi majus L., a member of the Apiaceae family, is a valuable medicinal plant. Its botanical name is derived from the Greek words "Ammi" and "majus," meaning "sand" and "larger," respectively. This plant has been used for centuries in traditional medicine, particularly for its antispasmodic and anti-inflammatory properties.
Origin and distribution
Ammi majus L. is native to Egypt and is now cultivated in various parts of the world, including India, Europe, and North Africa. It has been introduced to many countries for its medicinal and ornamental value.
Botany
This herbaceous annual plant grows up to a height of 0.75 to 1.15 meters. It has a round, erect, and solid stem with a tap root system. The large leaves are 5-8 cm long, alternate, and light green, with a compound, pinnately divided, and lanceolate shape.
The inflorescence is an umbel, axillary, and terminal in position, bearing white flowers. The calyx tube is adnate to bracts, with 5 teeth. The petals are 5 in number, epigynous, distinct, and bifid. There are 5 stamens, epigynous, and alternate with petals. The ovary is inferior, 2-celled, disk epigynous, 2-lobed, with a solitary ovule in each cell. The style has 2 branches, with a minute and capitulate stigma.

Scientific name: Acorus calamus L.
Family: Acoraceae
Acorus calamus, commonly known as Sweet Flag, is a medicinal plant with a long history of therapeutic use. Various names in Hindi, Sanskrit, and other languages know it. The plant has a distinctive lemon-like scent in its leaves and a pleasant aroma in its roots. Sweet Flag is highly valued for its essential oil used in the perfume industry. Unfortunately, the plant is now classified as an endangered species due to over-exploitation.
Origin and distribution Acorus calamus, commonly known as Sweet Flag, is native to northern latitude countries worldwide. It is widely dispersed across the USA and can be found growing wild or cultivated in India and Sri Lanka up to 1800 meters.
Botany
Sweet Flag is a perennial, semi-aquatic herb that exhibits a distinctive morphology. The rhizome, which serves as the plant's stem, is cylindrical in shape, measuring 19-25 mm in diameter and 10 cm in length. The exterior of the rhizome is light brown in color, while the interior is white and spongy. The rhizome is also highly aromatic, emitting a sweet, pungent scent when bruised. It is a creeping, highly branched structure that allows the plant to spread rapidly.

Scientific name: Rauvolfia serpentina (L.) Benth. ex Kurz
Family: Apocyanaceae
Rauvolfia serpentina, also spelled as Rauwolfia, is indeed a vital plant in traditional Indian medicine. It has been used in folk medicine for centuries to treat conditions like snake and insect bites, malaria, dysentery, and more. This plant is deeply rooted in Indian culture, mentioned in Hindu manuscripts as far back as 1000 BCE. It's also known by various names, including Indian snake root, devil pepper, serpentine wood, sarpagandha, and chandrika. Botanically, it belongs to the family Apocynaceae, with the genus Rauvolfia comprising 74 species. Unfortunately, Rauvolfia serpentina is listed as endangered due to over-exploitation and habitat loss, emphasizing the need for conservation and sustainable use to ensure its availability for future generations.
Origin and distribution
The distribution of R. serpentina is very wide, is occurrence is sporadic. The plant commonly grows scattered and close to each other. They are widely distributed in the Sub Himalayan tract from Himachal Pradesh to Sikkim and Bhutan, Eastern and Western Ghats, in some parts of central India. Beyond India the plant is distributed in Bangladesh, Malaysia, Thailand, Nepal, Sri Lanka, Indonesia, and Burma.

Scientific name: Catharanthus roseus (L.) G.Don
Family: Apocyanaceae
Catharanthus roseus (Vinca rosea)is a perennial flowering plant in the family Apocyanaceae. It is commonly known as Cape periwinkle, Madagascar periwinkle or graveyard plant etc. Periwinkle is an extensively investigatedmedicinal plant after the discovery of powerful anticancer alkaloids such as Vinblastine and Vincristine, in its leaves more than 50 years ago. These alkaloids have revolutionized  cancer treatment and saved countless lives worldwide. Today, Catharanthus roseus remains a vital source of inspirationfor cancer research and drug development.
Origin and distribution
Periwinkle is native and endemic to Madagascar. However, it is now cultivated and grown in many tropical and subtropical regions worldwide, including the southern United States, West Indies, and several states in India, such as Karnataka, Tamil Nadu, and Gujarat. Unfortunately, the plant is endangered in its natural habitat due to habitat destruction and burn and slash agriculture.
Botany
Periwinkle is a perennial herb belonging to the Apocynaceae family. It is a popular ornamental plant, often grown in gardens for its attractive pink and white flowers that bloom throughout the year. The plant has a spreading habit, with flexible, long branches that bear simple, opposite leaves. These leaves are elliptical to ovate in shape, measuring 2.5-5 cm in length and 1-2 cm in width, with a glossy, dark green appearance and a pointed tip.

Scientific name: Piper longum L.
Family: Piperaceae
Piper longum, commonly known as long pepper, is a flowering vine native to the tropical regions of India, Southeast Asia, and Sri Lanka. It has been used for centuries in traditional medicine, particularly in Ayurveda and Unani systems, for its numerous health benefits. The plant is characterized by its slender stems, heart-shaped leaves, and spikes of small flowers. The fruit of the plant, a small, elongated berry, is the part commonly used for medicinal and culinary purposes.
Origin and distribution
The plant is native to South and Southeast Asia. The wild type of Piper longum is mainly found in Kerala, Assam, West Bengal, Nepal, Uttar Pradesh, Andhra Pradesh, and the North East region. The plant is cultivated in various parts of India, including Bengal, Assam, Maharashtra, Tamil Nadu, Orissa, and Meghalaya. Piper longum naturally occurs in the central Himalayas to Assam, Khasi and Mikir hills, and the evergreen forests of Western Ghats from Konkan to Kanyakumari and Nicobar Island.

Scientific name: Plantago ovata Forsk.
Family: Plantaginaceae
Isabgol, or Psyllium husk or Blond psyllium, belongs to the family Plantaginaceae. This medicinal herb has been used for centuries in India, particularly for its seed's therapeutic properties. The name "Isabgol" originates from Persian, with "Isab" meaning horse and "Gol" meaning ear, describing the seed's distinctive shape. Isabgol is cultivated globally and is valued for its medicinal and industrial applications. The seed's medicinal properties make it an effective remedy for constipation and digestive issues. Additionally, Isabgol is used in the food industry to produce various products, such as candies, biscuits, and ice cream.
Origin and distribution
Isabgol (Plantago ovata) is native to the Mediterranean region, West Asia, and parts of Pakistan, including Sindh and Sutleg. Its distribution also extends to the Canary Islands, Southern Spain, the Middle East, North Africa, and North- Western Asia.
Botany
It is 10-15 cm tall short-stemmed annual herb. Flowers in terminal spikes; fruit is a capsule. Theflowers are white in colour and minute. It is highly selfpollinated. The capsule is ovate, 8 mmlong, releasing the smooth, dull, ovate seeds. The seeds are covered with a translucent membrane, known as the husk. The husked seeds are dark red and hard.

Scientific name: Dioscorea alata L.
Family: Dioscoreaceae
Dioscorea alata, commonly known as water yam or purple yam, is a species of yam belonging to the family Dioscoreaceae. Native to Southeast Asia, this tropical and subtropical crop has gained popularity worldwide for its edible, nutrient-rich tubers. The plant's unique characteristic is its purple-colored tubers, which owe their distinct hue to anthocyanins, powerful antioxidants that provide numerous health benefits. With its exceptional nutritional profile, Dioscorea alata has become an attractive alternative to other tubers, offering a valuable addition to various culinary dishes.
Origin and distribution
Dioscorea alata, a yam species, exhibits a widespread geographical distribution, with its origin tracing back to Southeast Asia. Phylogeographical studies indicate that the species has undergone extensive dispersal and cultivation, resulting in its presence globally in tropical and subtropical regions. Notably, D. alata has become naturalized in the southeastern United States, the Caribbean, and parts of Africa, where it is widely cultivated for its edible tubers.

Scientific name: Cinchona spp.
Family: Rubiaceae
Cinchona, a genus of flowering plants, comprises approximately 65 species. Several species, including Cinchona succirubra, C. officinalis, and C. ledgeriana, are cultivated for their bark, which contains quinine and other antimalarial compounds.
Origin and distribution
Native to the highlands of South America, Cinchona was introduced to India's Nilgiris in 1859. It is currently cultivated in the Anamalai and Nilgiris hills of Tamil Nadu, as well as in Darjeeling, West Bengal.
Botany
Cinchona is a majestic evergreen plant that can grow to varying heights, ranging from 5 to 15 meters. Its trunk is covered with a smooth, greyish-brown bark that peels off in thin layers. The branches are slender, pubescent, and arranged in a whorled pattern. The leaves of the Cinchona plant are simple, oppositely arranged, and decussate. They are elliptical or lanceolate in shape, with a pointed apex and a rounded base. The leaves are 10-20 cm long, 2-5 cm wide, and have a leathery texture. The upper surface is dark green, glossy, and glabrous, while the lower surface is pale green, pubescent, and has prominent midribs.

Scientific name: Atropa belladonna L.
Family: Solanaceae
Belladonna, also known as deadly nightshade, is a legendary Central European nightshade with a rich history. The plant contains hallucinogenic alkaloids, primarily atropine, which is named after the plant.
Origin and distribution
Atropa belladonna is native to temperate southern, Central, and Eastern Europe, as well as North Africa, Turkey, Iran, and the Caucasus. It has been naturalized in some areas of North America and is considered a weed species in regions with disturbed soils.
Botany
Belladonna, is a plant species characterized by its distinctive features. It grows to a height of approximately 1.5 meters, with a purplish-colored stem. The root system is thick, fleshy, whitish, and branched. The plant's leaves are simple, dark greenish in color, ovate, and alternate in nature. The flowers are solitary and bell-shaped, blooming from June to September. The plant produces berries that are highly toxic, and the seeds contain toxic alkaloids.

Scientific name: Piper betle L.
Family: Piperaceae
The betel vine, scientifically known as Piper betle L., is a perennial climber native to Southeast Asia, including India. It belongs to the Piperaceae family. The betel vine has been an integral part of Indian culture, tradition, and medicine for thousands of years.
In Hinduism, the betel vine is considered a sacred plant, often offered to gods and goddesses. The leaves are used in various rituals, including weddings and pujas (prayer ceremonies). In Indian tradition, betel leaves are also offered as a mark of respect and hospitality to guests.
Betel leaves have been used in Ayurvedic medicine for their numerous health benefits. They are rich in antioxidants, anti-inflammatory compounds, and essential oils. The leaves are used to treat various ailments, including digestive issues, respiratory problems, skin conditions, and oral health issues.
In addition to their medicinal properties, betel leaves are also used as a mouth and breathe freshener. The leaves are chewed with betel nuts (areca nuts) and lime, a practice known as "paan" in India. The betel vine is a versatile plant with significant cultural, medicinal, and economic importance in India and other parts of Southeast Asia.

Introduction
India, renowned for its rich biodiversity and ancient tradition of Ayurveda, is home to an astonishing array of medicinal and aromatic plants. These plants, harboring bioactive compounds such as alkaloids, glycosides, terpenes, and flavonoids, have been harnessed for centuries to prevent, diagnose, and treat various health ailments. Medicinal plants, utilizing parts like leaves, roots, stems, or seeds, offer natural remedies for wellness. Meanwhile, aromatic plants, rich in fragrant volatile oils, are the cornerstone of essential oils, aromatherapy, and perfumery. A Legacy of Healing: History of Medicinal and Aromatic Plant Cultivation in India

Ancient India (3000 BCE - 500 CE)
Ayurveda's origins: Ayurveda, the traditional Indian system of medicine,
emerged around 3000 BCE, emphasizing the use of medicinal plants.
Vedic period (1500 BCE - 500 BCE)
• Ayurvedic texts like the Rigveda, Yajurveda, and Atharvaveda documented medicinal plant uses.
• Charaka Samhita and Sushruta Samhita (400 BCE - 200 CE): These seminal texts systematically described medicinal plant properties and uses.

English name : Rosemary
Botanical name : Rosemarinus officinalis L.
Family : Lamiaceae
Chromosome number : 2n = 24
Centre of origin : Mediterranean region
Rosemary, botanically classified as Rosmarinus officinalis L. of the family Lamiaceae (Labiatae), is widely recognized as a culinary herb. When subjected to steam distillation, the leaves and flowering tops yield an essential oil. The name “rosemary” is believed to be associated with the Virgin Mary, as reflected in one of its Spanish names, romero, meaning “pilgrim’s flower.” This association further underscores its connection to the Virgin Mary. Dried rosemary leaves comprise approximately 5.7% moisture, 4.5% protein, 17.4% fat, 19% crude fibre, 47.4% carbohydrates, and 6.0% ash. Additionally, they are rich in minerals and vitamins, containing 1.5% calcium, 0.70% phosphorus, 0.03% iron, 0.004% sodium, 1.0% potassium, 175 IU of vitamin A per 100 g, 0.51 mg of vitamin B, 0.04 mg of another B-vitamin, 1.0 mg of niacin, and 61.3 mg of vitamin C per 100 g, with a caloric value of 440 calories per 100 g.

English name : Thyme
Botanical name : Thymus vulgaris L.
Family : Lamiaceae
Chromosome number : 2n = 30
Centre of origin : Mediterranean region
Thyme (Thymus vulgaris Linn.), also known as ‘Common Thyme’ or ‘Garden Thyme’, belongs to the Lamiaceae family and has been a vital herb spice for centuries. The name “thyme” originates from the Greek word meaning “to fumigate” or “thumus,” which symbolizes courage. The herb contains various nutrients, including moisture (7.1%), protein (6.8%), fat (4.6%), crude fibre (24.3%), carbohydrates (44.0%), mineral matter (13.2%), calcium (2.1%), phosphorus (0.20%), iron (0.14%), sodium (0.08%), potassium (0.9%), vitamin A (175 IU), vitamin B1 (51 mg), vitamin B2 (0.4 mg), vitamin C (12.0 mg), niacin (4.9 mg), and a calorific value of 340 calories. Upon distillation, thyme yields Red Thyme oil. Additionally, the herb contains triterpinoid saponins, flavones, ursolic acid (1.5% in tops), caffeic acid, bitter compounds, tannins, and resins. Other wild thyme species, such as T. serpyllum L., T. zygus L. (white thyme), and T. satureioides Coss and Bal, also produce volatile oils. The major compounds in T. zygus and T. serpyllum include thymol, linalool, and linalyl acetate, while T. satureioides contains thymol, borneol, and a-terpineol.

English name : Vanilla
Botanical name : Vanilla fragrans (Salisb)
Family : Orchidaceae
Chromosome number : 2n =32
Centre of origin : Mexico
Orchid (Vanilla fragrans Salisb Syn. V. Planifolia Andrews) is an orchid belonging to the family Orchidaceae. Vanilla is cultivated primarily for its beans, which are prized for their sweet scent, rich aroma, and delightful flavour. As the most expensive spice, vanilla serves as the primary source of vanillin, a key ingredient used to flavour a variety of products such as ice cream, chocolate, beverages, cakes, custards, and other confectioneries. It is also widely utilized in the perfume industry and in its medicinal applications. Vanilla beans contain natural vanillin (1.3-3.8%), resins, fats, glucose, fructose, 26 volatile constituents, 144 additional volatile compounds, and moisture. “Vanilla sugar,” derived from these beans, is crucial in chocolate production. The curing process is essential for producing vanillin, the primary aromatic compound.

English name : Saffron
Botanical name : Crocus sativus L.
Family : Iridaceae
Chromosome number : 2n =3x= 24
Centre of origin : Southern Europe
Saffron (Kesar) comprises the dried, tri-lobed stigmas of Crocus sativus L., a bulbous perennial of the Iridaceae family. Saffron, one of the oldest and costliest spices in the world, is often confused with meadow saffron (Colchicum automnale L., family Liliaceae) or safflower, also called bastard saffron (Carthamus tinctorius L., family Compositae), which are sometimes used as adulterants. Producing one pound of saffron requires harvesting 75,000 flowers by hand to obtain 2,25,000 to 5,00,000 dried stigmas. Saffron is characterized by its vibrant yellow-red colour, a distinct, intense aroma, and a slightly bitter, exotic taste.

English name : Bishop’s weed, Ajowan
Botanical name : Trachyspermumammi (L.) Sprague
Family : Apiaceae
Chromosome number : 2n = 18
Centre of origin : Egypt
Ajowan is an annual herbaceous plant grown for its herb and greyish brown fruits (seeds) which constitute the spice. The trade name ajowan or ajwain
is based on the Indian name which is derived for adarjawan. It is known as ‘Bishop’s weed’ in English. Ajowan is grown for its seeds (fruits) the composition of which is as follows; moisture 8.9%, protein 15.4%, fat (ether extract) 18.1%, crude fibre 11.9%, carbohydrates 38.6%, mineral matter (total ash) 7.1%, calcium 1.42%, phosphorus 0.30%, iron 14.6 mg/100 g, vitamins (per 100 g) thiamine 0.21 mg, riboflavin 0.28 mg, nicotinic acid 2.1 mg, carotene 71 mg. Its calorific value is 379.

English name : Celery
Botanical name : Apium graveolens L.
Family : Apiaceae
Chromosome number : 2n = 22
Centre of origin : Italy
Celery is botanically known as Apium graveolens L. and is commercially recognized by different names in India, like Karnauli, Ajmod, or garden celery. There are four horticultural varieties of celery. Apium graveolens var. dulce (Miller) Pers. is cultivated for its edible leaves and stalks, commonly used in salads, appetizers, and soups. Another variety, var. rapaceum (Mill) Gaudich, known as celeriac, comprises dark green leaves grown for its root tubers, which are cooked and consumed. The other two varieties are var. secalinum and smallage.
In India, the main variety cultivated is var. dulce. Celery is commercially available in various forms, including seeds, flakes, as a vegetable, celery seed oil, and oleoresin. Celery seeds have specific quality characteristics viz. moisture content ranges from 5-11%, volatile oil content from 1.5-3% (average 2.4%), non-volatile ether extract from 5.8-14.2% (average 9.4%), cold water extract from 5.9-12.6% (average 8.4%), total ash from 6.9-11.0% (average 8.8%), and ash insoluble in acid from 0.5-4.0% (average 2.5%).

English name : Dill
Botanical name : Anethum graveolens L.
Family : Apiaceae
Chromosome number : 2n = 22
Centre of origin : Mediterranean region
The genus Anethum includes two cultivated species: the European dill (A. graveolens L.) and the Indian dill (A. sowa Roxb.). The seed compositions of these two dill types are as follows:
Indian dill composition
• Moisture: 4.5-7.5%
• Volatile oil: 1.5-4.0%
• Mineral matter: 5.89-11.54%
• Acid-insoluble ash: 0.55-2.71%
• Extraneous matter: 3.16-12.93%

English name : Cumin
Botanical name : Cuminum cyminum L.
Family : Apiaceae
Chromosome number : 2n = 14
Centre of origin : Egypt, Syria and Turkey
Cumin (Cuminum cyminum L.), also known as Safaid jeera, is one of the oldest spices in history. It is derived from the mature fruit of a slender herb. Cumin seeds range from yellowish to greyish brown and emit an aromatic scent due to cuminol and aromatic alcohol, contributing to their distinct spicy and slightly bitter taste. These seeds are widely used as a condiment. The essential oil of cumin seeds contains various compounds, including a-pinene (14.3-19.7%), p-cymene (2.7-6.0%), terpinene (11.5-16.2%), cuminaldehyde (20-22.4%), p-menth-1,3-dien-7-al (11.1-13.5%), p-menth-1,4-dien-7-al (23.6-24.3%), cuminyl alcohol (2.7-72.2%), sabinene (3.38%), benzyl cinnamate (4.47%), and farnesol (2.98%). Cumin is an essential component of many spice blends and curry powders and is used to flavour soups, pastries, stews, sausages, pickles, cheese, and bakery products like bread and cakes. Cumin oil finds its place in soap making, perfumery, and flavouring alcoholic beverages such as liquors and cordials, with absolute oil being preferred for flavouring purposes. Cumin aldehyde is also utilized in perfumery.