Tuesday, January 6, 2009

Colocasia-Elephant ear

Even though the name of this plant sounds odd, the Colocasia leaf is a delicacy and is famously known as 'Patra' in many Indian languages.
The Colocasia genus belongs to Araceae and is species of flowering plants with eight varieties; its native to southern Asia.
The stem and root along with the leaf are edible and as I said is quite a delicacy!



Common names: Taro,'Potato of tropics'

'Dasheen' in US (florida)'Cocoyam'

'Eddo' in West Indies
'Arbi' in Indian subcontinent


Other names in Indian subcontinent: Patra in gujarati, 'Sainmay keeray' in tamil, Chama dumpa in telegu,'Kesuvinagadde' in kannada, 'Kochu' in bangali...Alu in marathi...

Scientific classification:


Kingdom: Plantae
Division: Magnoliophyta
Class: Liliopsida
Order: Alismatales
Family: Araceae
Genus: Colocasia
Species: C. esculenta



Features:

  • Perennial
  • Ornamental
  • Edible
  • Can be contained in pots
  • Grows in moist soil
Culture: Colocasia should be grown in slightly acid, moist soil which is rich in organic fertilizers, it needs plenty of water and partial sun


Hardiness: USDA zone 8-11; evergreen plant in tropical climate, elsewhere it is cultivated annually.

Plant features(physical)


Colocasia produces heart shaped leaves 2-3 ftlong and 1-2 ft across on 3 ft long petioles that all emanate from an upright tuberous rootstock, technically a corm. The petioles are thick and succulent and usually purple in color. The leaf attachment is referred to as "peltate", which means that the petiole attaches near the center of the leaf.
The cormis shaped like a top with rough ridges, lumps and spindly roots, and usually weighs around 2 lbs but occasionally as much as 8lbs The skin is brown and the flesh is white or pink. Certain kinds of taros produce smaller tubers or "cormels" (also called "eddos") which grow off the sides of the main कर्म. The eddos are usually around 100 gms in weight.

Some photos:












Photosfrom:Flickr logo

Caution

Colocasia is extremely invasive in nature , for it destroys native vegetation in its vicinity hence care should be taken to keep sufficient distance for Colocasia to grow ,unharming to native species.
Leaves should be thoroughly cooked before eating since skin allergies are known to be found after consumption; not to mention the itchiness when one comes in contact with Taro leaves.

Monday, November 10, 2008

Nelumbo Nucifera-the divine lotus:

Nelumbo Nucifera-the divine lotus:
Lotus ,the national flower of India has acquired lot of cultural significance in not just hindu civilizations but also among the rest of the civilizations that existed across the world. The egyptian associated lotus with Sun since it blossomed during the day and closes during the night. In hinduism too lotus is persistently associated with lord Vishnu ,Lakshmi , Bramha and Saraswati, signifying purity ,virtues and beauty also refering lotus to be their seats'Kamalasana' or 'Padmasana'.
Buddhism too is inspired by the same factand depicts Buddha seated on Lotus.
coming to its scientific classification:
Division
Magnoliophyta
Class
Magnoliopsida
Order
Proteales
Family
Nelumbonaceae
Genus
Nelumbo
Parts of lotus:The roots of lotus are planted in the soil of a pond or river, the leaves float on top of the water surface. The flowers are usually found on thick stems rising several centimeters above the water. The plant normally grows up to a height of about 150 cm and a horizontal spread of up to 3 meters, but some unverified reports place the height as high as over 5 meters. The leaves may be as large as 60 cm in diameter, while the showy flowers can be up to 20 cm in diameter.

History of lotus:
The lotus is an Asian water lily known for the delicate beauty of its water flowers. It possesses an amazing ability to flourish in a variety of environments ranging from clear ponds to muddy marshes. It is also known for its exceptionally hearty seed pods, which often plant themselves far from its source, bringing the beauty of the lotus blossoms everywhere.

Most seeds remain quiescent during a cold or dry season and germinate only with the coming of favorable growing conditions. Seeds that require special treatment to germinate, even when presented with adequate water and oxygen and favorable temperatures, are said to exhibit dormancy. Seeds with thick or waxy coats, which inhibit the entry of water and oxygen, may remain in a prolonged quiescent state. Seeds of the Indian lotus can germinate 200 years after they are shed. Most seeds, however, lose the ability to germinate within several years of shedding. Following the return of the rains, primitive peoples witnessed the rise of the undefiled water lily from the bottom of dried-up watercourses and considered the living blooms symbols of immortality and resurrection. The ancient Egyptians from the 4th dynasty greatly valued the sacred lotus, N. totus, in religious ceremonies and funerals.

Lotuses are 5 species of water lilies, three in the genus Nymphaea and two in Nelumbo; both genera are members of the water-lily family, Nymphaeaceae. Lotus is also the name of a genus in the pea family, Leguminosae, which contains such plants as the bird's-foot trefoil, Lotus corniculatus. Nymphaea lotus, the Egyptian white lotus, is believed to be the original sacred lotus of ancient Egypt. It and the Egyptian blue lotus, N. caerulea, were often pictured in ancient Egyptian art.

The white lotus is a shallow-water, night-blooming plant with a creeping rootstock (rhizome) that sends up long-stalked, nearly circular, dark green leathery leaves, which float on the surface. The flowers, up to 25 cm (10 in) across, remain open until midday. The blue lotus is a smaller, less showy day-blooming plant.
Interesting fact:
Available either fresh or canned, the tubers of N. nucifera can be sliced longitudinally and served as refreshing vegetable that tastes somewhat like a sweet potato. They can also be sliced across to reveal the lacy structural pattern, and can be baked and then dipped in confectioner's sugar like candied yams.
The seeds are edible, but need to be peeled and any bitter sprouts removed. During Chinese New Year festivities, sugared lotus seeds are available as sweets. Also, according to one tradition, the wife who finds such a seed inside a dumpling she is eating can be certain of bearing a son in the year to come.
Like fiddlehead ferns, the young leaves of Asian lotus can be collected before they unfurl, and steamed like spinach or watercress. In China, where seeds have been found that date to 7,000 years BP [before the present,] the lotus is associated with longevity, and all parts of it are supposed to have medicinal properties. Freshly cut long lotus stalks are filled with wine by pouring it through a little hole in the centre of the leaf and letting gravity draw it down to extract the lotus' beneficial qualities.

The Lotus Chakras
In the practice of Kundalini, where the ordinary objective is to stimulate and align one's vital energy, the 7 stages are conceived as the blooming or unfolding of lotuses. The meditation proceeds to the extraordinary objective, which is extinction of the time-connected self (Skt. nirvikalpa samadhi,) or alternately (depending on one's view,) the union of the self with the divine.
Each chakra is associated with one of the 5 elements (earth, water, fire, air, space) plus "mind" or consciousness, and supreme bliss or "enlightenment.")
The process goes through:
Muladhara chakra: the base of the body, associated with the earth, when activated the 4-petalled crimson [orange-red] lotus blooms;
Svadhisthana: near the genital area, associated with water, when activated a 6-petalled vermilion [bluish-red] lotus blooms;
Manipur: in the lower abdomen, associated with fire, a 10-petalled blue-black lotus;
Suddha: near the heart, associated with air, a 12-petalled red lotus;
Visuddha: base of the throat, associated with the sky, a 16-petalled purple lotus;
Ajna: the "third eye" between the brows, associated with consciousness, a 2-petalled white lotus;
The crown lotus: at the top of the head, a 1,000-petalled rainbow lotus like a canopy or a fountain.

Germination
When to Germinate - In our part of the world the optimum time is Spring when temperatures are averaging around 25-30°C or at least by the first month of Summer. This is because the seedlings will need the better part of a whole growing season to develop sufficient rhizomes or flower and produce seed ensuring the plants survives into the following seasons. Lotus seeds have an extremely long viable life. Seeds from Chinese tombs over 5000yrs old have been germinated successfully! So there's no rush if you have missed the optimum time of year.
How to Germinate - Seed should be filed or scraped on concrete until you're through the hard, dark exterior skin. This lets the water into the seed. In other words you file 1-2mm off one or both ends of the seeds. Place the seeds in a glass of warm to hot (not boiling) water on a sunny windowsill. Usually the viable seed will sink but often floaters can also germinate so give them a chance. Change the water everyday especially if it goes cloudy. Warm water is best. The first leaves should emerge within a week and rise up out of the glass, it's fun to watch!. At this stage they can be planted out. The seedlings can then be planted 2-3cm deep in a well-fertilized medium (growing medium details below) covered with about 100mm of water.
Ponds and Containers - Lotus is a vigorous grower with a spreading rhizome. When mature the leaves can emerge from about 2.5m of water and the stems can rise 1m out of the water depending on the depth of the water. Because of its vigor lotus does not prosper in a small container, I recommend a minimum container size of about 400-500lts. The container can be a large planter bag or pot submerged into a pond or one that holds water itself like a bathtub or ceramic pot. In the later case the container should be filled with soil or medium to about 200mm from the top allowing for this much water to cover the soil. If you're intending to grow lotus in a farm dam or large earth based pond remember that lotus will grow into a depth of 2.5 meters so if your pond or dam doesn't exceed a depth of 3m anywhere the lotus may occupy the whole area which may disadvantage other life forms in the pond and the aesthetic appeal of the pond, it's nice to be able to see some of the water surface. In our experience a couple of rhizomes planted at one end of a .5ha dam, the depth of which did not exceed 2m, the lotus covered the entire surface of the dam in 3yrs, part of the dam has since been deepened.
Soils and Growing Medium - Lotus will do best in a rich heavy or clayey soil that is fertilized with well-rotted manure. We grow everything organically so cannot advise on artificial fertilizers. However we have used chicken manure based pellet fertilizers wrapped in paper parcels and buried in the soil with good results. The soil should be covered with water and if the manure is fresh, allowed to stand for 2-3 weeks while the manure rots. If plants are introduced to this mix too soon they may also rot so prepare the container beforehand.

Images






Tuesday, June 3, 2008

Shoe-flower Hibiscus

(image credit:Indiamart.com)
Different colors of Hibiscus

Hibiscus is a very popular flower with more than 200 species. It is known by various names such as 'Shoe-flower','China-rose' since its believed to be a native of China. In Sanskrit it is known as 'Japa-kusuma' alternatively 'Japa-pushpa'. The Navagraha stotra by Shri Veda-Vyas relates the color of hibiscus to the Sun saying 'Japa-kusuma sankasham,kashya peya maha dyutim;Tamorim sarva papaghnam, meaning: 'One who resembles the color of hibiscus,the son of Kashyapa Rishi,a great electrifier and who eliminates all sins......
In Ayurveda hibiscus has an important position and widely used for various ailments which is detailed further in this post.
The literal meaning of Hibiscus is 'Seize opportunity' and is a native of China and India. Hibiscus is an ever green shrub, its flower when dried is made a powder and is used as a 'shoe-shine'/'shoe-polish' and hence called as a 'Shoe-flower'-interesting fact indeed!!

Scientific classification:

The hibiscus flower belongs to the family 'Malvaceae' -the Mallow family. It has more than 200 species and many countless hybrid varieties since its cultivation is very easy.The hibiscus shrub can grow upto 30 ft,it has smooth large leaves and bell-shaped large flowers with five petals.Flowers come in colors from white,purple,red yellow,orange and shades of pink; most of them are of commercial use.
Division:Magnoliophyta
Class:Magnoliopsida
Order:Malvales
Family:Malvaceae
Genus:Hibiscus
Species: More than 200 of which,the prominent ones are listed below:


  • Hibiscus-Rosa-sinensus-Chinese rose

  • Hibiscus cannabinus-popularly known as 'Kenaf'

  • Hibiscus Sabdariffa-popularly called 'Roselle'
Hibiscus Rosa-sinensus -Chinese Rose:
Medicinal properties of this flower are,that It is an: Antiseptic,aphrodisiac,digestive,diuretic,sedative,astringent.All parts of hibiscus plant are useful medicinally- The leaves are diuretic,coolant and sedative and they make an excelllent shampoo!;Fruits are antiscorbutic. Roots are aperitive and tonic. An extract of hibiscus flower helps lower cholestrol content in blood and is effective in prevention of oxidation, a daily intake of 'Hibiscus tea' reduces high blood pressure.
Hibiscus cannabinus-Kenaf:
Another species of hibiscus,originated in Asian continent, its realted to cotton and Okra and grows almost in all parts of the world ,its main uses are in paper industry. Kenaf produces flowers once in two years,a
herbaceous plant growing to 1.5-3.5 m tall with a woody base. The stems are around 2 cms in diameter, The leaves are 10-15 cm long, variable in shape, with leaves near the base of the stems being deeply lobed. The flowers are 8-15 cm diameter, white, yellow, or purple; when white or yellow, the centre is dark purple. The fruit is a capsule shape, containing several seeds.
(Kenaf image credits:treehugger.com)
Uses: the tribes in African continent are known to consume leaves as a part of diet also is a food to animals. the main uses of Kenaf is its fibre,it is one of the major commercial crop in most Asian and American continents. It is widely used in making ropes,twine and clothes-similar to jute and paper,in fact the paper industry even states that Kenaf is the future of paper industry.
Kenak seeds are oil producing and is used in cosmetics,bio-fuels and used in culinary purposes. Kenaf oil is supposed to have anti-oxidant properties.

Hibiscus Sabdariffa-Roselle:
image credits:http://www.flowersgrowing.com



Roselle plant flowers once a year and is an origin of India and Malayasia. there are three main varities of this plant: 'Rico', 'Victor','Archer-white sorrelle'.Unlike kenaf, roselle crops cannot be grown successively throughout the year.
Uses:
Roselle is widely used for edible purposes-in jams,jelly,gelatin,pudding,pies,sauces,tarts,syrup,cakes,ice-cream and in making wines.They are also added to curries as seasoning.

They have an acid, rhubarb-like flavor.

Medicinal use:

The leaves and flowers are used as a tonic tea for digestive and kidney functions. The heated leaves are applied to cracks in the feet and on boils and ulcers to speed maturation. The calyces and seeds are diuretic, laxative andtonic. The ripe calyces, boiled in water, can be used as a drink to treat bilious attacks. A lotion made from roselle leaves is used on sores and wounds.




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