Which gymnosperm gives the anti-cancer drug Taxol?

Taxol comes from the yew. According to the US National Cancer Institute, a botanist collected Pacific yew bark in 1962, and scientists later isolated paclitaxel from it. Because stripping the bark kills this slow-growing tree, since the early 1990s it has been produced in a semisynthetic form. It is used against breast, ovarian and some other cancers.

Which gymnosperm seeds are eaten in India?

The seeds of the chilgoza pine, Pinus gerardiana, are eaten as nuts and sold as a 'dry fruit' snack, though botanically they are seeds. This small pine grows in dry valleys of the western Himalayas. Its oil-rich seeds are its main economic use and reach markets on the plains of northern India. Over-harvesting of seeds, logging and forest clearance have made it Near Threatened (IUCN assessment, 2013).

Is Ephedra a gymnosperm?

Yes. The US Forest Service describes ephedras as gymnosperms with greatly reduced, bract-like leaves and green, broom-like stems that carry out photosynthesis. The genus has about 40 shrubby species in dry parts of the Northern Hemisphere. The Old World species Ephedra sinica contains ephedrine, a pharmaceutically active compound.

Economic and Ecological Importance of Gymnosperms

Q: What is the economic importance of gymnosperms?

Gymnosperms give softwood timber for buildings and furniture, and wood pulp for paper. Pine resin yields turpentine and rosin. The cancer drug paclitaxel (Taxol) came from Pacific yew bark, and ephedrine is found in Ephedra sinica. Chilgoza pine gives edible seeds, and Cycas is grown as an ornamental plant.

Q: What is the ecological importance of gymnosperms?

Gymnosperms form large evergreen forests on cold mountains and in the far north. Pine roots live with fungi as mycorrhiza, and Cycas roots host nitrogen-fixing cyanobacteria. Deodar is used for soil conservation in the Himalayas. Their seeds and shoots feed birds, rodents and grazing animals, and Ephedra helps bind loose sand.

The importance of gymnosperms lies in the wood, paper, resin, medicines and seeds they give people, and in the forests they build. Pines, deodar, spruce, yew, Cycas and Ephedra are all gymnosperms. Their ecological value is just as real: they bind soil, feed animals and shelter wildlife in cold regions.

Gymnosperms are one part of the wider plant cover described in our guide to natural vegetation: meaning, types, importance and conservation. How they differ from flowering plants is set out in our comparison of gymnosperms and angiosperms. This page focuses on one question: why gymnosperms matter to people and to nature.

What are gymnosperms?

NCERT’s Class 11 Biology book, in the chapter “Plant Kingdom”, explains the name. Gymnos means naked and sperma means seeds. In gymnosperms the ovules (the structures that later become seeds) are not covered by an ovary wall. They stay exposed both before and after fertilisation, so the seeds are naked.

NCERT’s examples are Cycas, Pinus (pine) and Ginkgo, and it names Cedrus among the branched gymnosperms. The best-known group is the conifers, the cone-bearing trees. For their full features and how they differ from flowering plants, see our gymnosperms vs angiosperms comparison.

What is the economic importance of gymnosperms?

Gymnosperms are a small group compared with flowering plants, yet they support several industries. Their wood, resin, chemicals and seeds all have a market. The uses below are the ones most often asked about in Class 11 answers.

Use	Main gymnosperms	What people get
Timber	Deodar, chir pine and other conifers	Softwood for buildings, furniture and carpentry
Paper	Pines	Wood pulp for paper
Resin products	Chir pine and other pines	Gum turpentine and rosin
Anti-cancer drug	Pacific yew (Taxus brevifolia)	Paclitaxel, sold as Taxol
Ephedrine	Ephedra sinica	A pharmaceutically active compound
Edible seeds	Chilgoza pine (Pinus gerardiana)	Oil-rich seeds eaten as nuts (sold as a ‘dry fruit’ snack, though botanically seeds)
Ornamental plants	Cycas revoluta (sago palm), deodar	Garden, container, bonsai and amenity plants

Timber and construction

Conifer wood is called softwood, and it is the main economic product of the group. In India, NCERT’s Class 11 geography book calls chir pine “a very useful commercial tree”. It grows in pine forests between 1,500 and 1,750 m in the Himalayas. The same book describes deodar as a durable wood used mainly in construction.

History shows how much this timber was valued. According to NCERT, colonial foresters swapped oak for chir pine in Garhwal and Kumaon because railway lines needed pine. The World Agroforestry database calls deodar an important structural timber. It lists houses, beams, floorboards, railway sleepers, furniture and plywood among its uses. To learn about one Indian conifer in depth, read about the characteristics and uses of the cedar tree.

Paper pulp

Paper is made from wood pulp, a mass of plant fibres separated from wood. FAO describes how pine wood chips are turned into pulp by the sulphate, or kraft, process. Turpentine and other chemicals are recovered as by-products of this pulping. So a pine log can give both paper and resin products.

Resin, turpentine and rosin

Pines make a sticky resin. Workers collect it by tapping living pine trees, a labour-intensive job that FAO compares with rubber tapping. Distilling the crude resin gives gum rosin and gum turpentine. The trade calls these products naval stores.

India is a long-standing producer. FAO’s 1995 report on gum naval stores says natural and planted chir pine (Pinus roxburghii) has been tapped in Jammu and Kashmir, Uttar Pradesh and Himachal Pradesh. The same 1995 report names synthetic camphor as the largest single use of turpentine in India. Elsewhere, FAO notes, turpentine is used as a solvent for paints and varnishes. Rosin goes into adhesives, paper size and printing ink.

Medicines from gymnosperms

Two medicines show how valuable gymnosperm chemicals can be.

Taxol from the yew. The US National Cancer Institute (NCI) tells the story. In 1962, a US Department of Agriculture botanist collected bark from the Pacific yew in Washington State. Two years later, researchers found that yew extracts were toxic to living cells. They isolated the most active compound and named it paclitaxel. It stops cancer cells from dividing. The US Food and Drug Administration approved Taxol for ovarian cancer in 1992 and for breast cancer in 1994. It is also used for some lung and pancreatic cancers.

Ephedrine from Ephedra. The US Forest Service describes Ephedra as a genus of about 40 shrubby gymnosperms in dry regions of the Northern Hemisphere. The Old World species Ephedra sinica contains ephedrine, a pharmaceutically active compound. It has not been detected in any North American species.

Edible seeds

Some gymnosperm seeds are food. Pine “nuts” are really seeds, because gymnosperms do not form fruits. India’s best example is the chilgoza pine (Pinus gerardiana). The Royal Botanic Garden Edinburgh, in its Threatened Conifers of the World pages, says its main economic use is its edible, oil-rich seed, known as neoza in Hindi. Cones are knocked from the trees in autumn and early winter. The seeds are then sent to markets on the plains of northern India.

Ornamental plants

Gymnosperms are also grown for their looks. The sago palm, Cycas revoluta, is a popular example. North Carolina State University Extension notes that it looks like a palm but is not one. It bears cones with exposed seeds, like pines and firs, so it is a gymnosperm. It grows so slowly that it may take 50 years or more to reach 10 feet (about 3 m). It is kept as a houseplant, in patio containers and as bonsai.

One warning belongs here. NC State Extension rates the sago palm as highly poisonous if eaten, especially for children and pets. Deodar is another gymnosperm grown as an ornamental and in amenity plantations, both in the Himalayas and abroad, according to World Agroforestry.

What is the ecological importance of gymnosperms?

The value of gymnosperms is not only in what we harvest. They shape whole ecosystems, especially where it is too cold or dry for many flowering trees.

Partnerships with fungi and bacteria

NCERT points out two useful partnerships in gymnosperm roots.

Mycorrhiza in Pinus: A mycorrhiza is a close association between a fungus and a plant root. The fungus helps the root absorb water and minerals, and it gets food from the plant in return.
Coralloid roots in Cycas: These are small, specialised roots that host cyanobacteria that fix nitrogen (N₂). They turn nitrogen from the air into a form plants can use, which enriches poor soil.

These partnerships help gymnosperms live on thin, rocky or nutrient-poor ground. The wider study of such links between plants and their surroundings is covered in our guide to plant ecology and its importance.

Forests of cold mountains and the far north

Conifers form the great evergreen forests of cold places. Their needle-like leaves and thick cuticle suit long winters and drying winds, as NCERT explains. In India, chir pine, blue pine, spruce, deodar and silver fir form belts on the Himalayan slopes. Our page on coniferous forests in India maps these belts in detail. The far-northern conifer forest is described in our article on the taiga or boreal forest.

Soil and water protection on hills

The World Agroforestry database describes deodar as a soil conservation and erosion control species in the Himalayas. It also rates deodar as a good species for re-vegetating bare land. In dry lands, gymnosperms bind soil too. The US Forest Service says ephedras are often the dominant plants on sand hills, where they act as sandbinders.

Food and shelter for animals

Gymnosperms feed many animals. The US Forest Service notes that ephedras give browse to sheep, mule deer and pronghorn, and their seeds feed rodents and birds. Chilgoza pine seeds are probably spread by Eurasian jays, according to RBGE’s Threatened Conifers pages. These links tie gymnosperms into local food webs. The bigger picture is explained in our article on the importance of natural vegetation.

Why do gymnosperms need protection?

Heavy use can harm the very plants that give us these products. RBGE’s Threatened Conifers pages list the chilgoza pine as Near Threatened, based on an IUCN Red List assessment from 2013. Over-harvesting of seeds, logging for timber and firewood, overgrazing and conversion of forest to farmland all reduce its numbers. Where every cone is collected, few seeds are left for new trees to grow.

The yew story teaches the same lesson. Medicines from wild plants need careful harvesting or a synthetic source. Planting, protected areas and sustainable harvesting help keep useful gymnosperms for the future.