Showing posts with label Tropical plants. Show all posts
Showing posts with label Tropical plants. Show all posts

Saturday, May 2, 2009

Pandanus fascicularis: A tropical shrub of many uses

Have you seen this plant?




It is common along the coastal areas of India, and also in SE Asia. The botanical name is Pandanus fascicularis (syn. P. odoratissimus, nom. illeg). In English it is called screw pine or umbrella tree. Local names in India include Kewra, Kaitha, Ketaki, Kevadaa, Tale hoovu, Bonnong, Kia, Kaethakee, and Thazhai.


We have Pandanus fascicularis in abundance in Olavipe, my village in Kerala, India. In fact, all the photographs on this page are taken at Olavipe. The shrub grows wild, usually along the canal banks, by the lake shore and on the edges of the rice fields. It is an invasive shrub which spreads quite extensively unless controlled.


The blade like leaves are about a meter or longer and have spikes along the midriff and the edges. They used to have economic significance our area. Large mats which were mainly used for drying paddy were made from Pandanus leaves by a particular caste. They were sold at the church feasts just before the harvest. Now plastic sheets have replaced them.


But elsewhere, like the South Eastern countries, the leaves have an important part in the local cuisine. They are eaten raw, or cooked and also used as flavoring agent.


Other uses of the leaves include making of bags and decorative items. It is also said that good quality paper can be made from screw pine leaves.




An excellent perfume is made from the spadices of male screw pine flowers. These blossoms are beautiful. When they open the wet musk smell lingers in the area. The Ganjam District of Orissa is one of the places where Pandanus is cultivated commercially. There are about 130 distillation units producing aromatic oil in the area.




The entire plant is considered to have great medicinal value. The range of health problems treated with different parts of the shrub is amazing. Here are examples from a long list: leprosy and other skin diseases, antiseptic, brain problems, diabetes, ulcers and wounds, cardiac conditions.


A major benefit of planting Pandanus is that it offers protection against sea erosion. This aspect is often overlooked.


Pandanus fascicularis grows to a height 2 to 3 meters. The common method of propagation is by planting the offshoots. Seeds can also be germinated.


Pandanus fruit has great resemblance to pineapple. But I don’t think many people eat it.



Ends.

Click on photos to enlarge. Copyright reserved. Photo credits: Top: Karthiki. Second: TP. The rest taken by me.

Related posts:

A pineapple story, with photos

Medicinal Plants: Noni (Morinda citrifolia) planting for profit?

Saturday, March 7, 2009

Tropical Medicinal Plants: Thumpa, a vanishing beauty


Thumpa (Leucas aspera, Dronapushpi, Gumma Bhaji, Karukansoli, pansi-pansi, paysi-paysi, sipsipan, sula-sulasihan) is part of my childhood memories in Kerala, India. The plant can grow up to a height of two feet depending on the species. The bell-like flowers are normally white. In fact, in Malayalam, the native tongue of Kerala, thumpa flower is a synonym for pure white.


Thumpa used to grow wild all over the place. Even children knew it had medicinal value. The most common usage was in case of any skin problems. If you touch a poisonous weed or plant and there are itching and/or skin eruptions, take a few thumpa leaves, crush them in your hand and apply to the affected part. The relief is almost immediate.


The medicinal properties of Leucas aspera are accepted in all the areas where the 100 species of the plant grows (Indian Subcontinent, Sri Lanka, Southeast Asia, China, Pacific Islands, South America, and Africa). The main uses of the plant are in treating psoriasis and other skin conditions, painful swellings, snake bites, insect stings, and coughs and colds. It is said that a decoction made from the plant hastens menstruation.


In some countries, Leucas aspera is used as a fragrant herb in cooking. It is also a natural insecticide. In Kerala, the plant is burnt to ward off mosquitoes.


What used to grow wild in our area and many parts of Kerala started disappearing about four decades back. We found that the use of chemical manure and pesticides was the cause. About twenty five years back we shifted back to organic farming. The thumpa plants returned to the scene as you can see in the photographs I took in Olavipe.



Click on photos to enlarge. Copyright reserved.

Leucas aspera can also be cultivated commercially. Seeds can be ordered online. Dry, sandy soil and full sunlight are required. The suggested planting distance is 12 to 15 inches apart. You could also have a few clusters of Leucas aspera in your garden, either on the ground or in pots.

These are great plants to have in the vicinity residential houses.

Also see: Amorphophallus, a medicinal plant with unique flower