plant encyclopedia • Earth.com

PLANTS ENCYCLOPEDIA

Explore plants, flowers, weeds and more

There are roughly 400,000 known species of plants on planet Earth, of which the great majority, some 300,000 species, produce seeds.

Green plants provide a substantial proportion of the world’s molecular oxygen, and are the basis of most of Earth’s ecosystems.

Plants that produce grain, fruit, and vegetables also form basic human foods and have been domesticated for millennia.

Plants have many cultural and other uses, as ornaments, building materials, writing material and, in great variety, they have been the source of medicines and psychoactive drugs.

There are four main groups of plants in the plant kingdom:

Angiosperms — Flowering plants

Gymnosperms — Conifers and cycads

Pteridophytes — Ferns

Bryophytes — Mosses and liverworts

Search by plant group

Angiosperms

The flowering plants, also known as Angiospermae, or Magnoliophyta, are the most diverse group of land plants, with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species.

View more...

Cones on pine with resin, shallow deep of field

Gymnosperms

The gymnosperms, also known as Acrogymnospermae, are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. The gymnosperms and angiosperms together compose the spermatophytes or seed plants.

View more...

Pteridophytes

A pteridophyte is a vascular plant (with xylem and phloem) that disperses spores. Ferns, horsetails, and lycophytes are all pteridophytes.

View more...

Herbaceous perennial Saxifraga arendsii pink flowers on green foliage in the garden. Selective focus.

Bryophytes

Bryophytes are an informal group consisting of three divisions of non-vascular land plants (embryophytes): the liverworts, hornworts and mosses.

View more...

STORY OF THE DAY
Cannabis use may reduce male fertility across generations
Previous studies on humans and animals have shown that exposure to cannabis can impede male reproductive...
Read more...

DID YOU KNOW?

Scientists can breed plants with genes from only one parent
New research led by University of California, Davis (UC Davis)...
Read more...
Diet is the most powerful weapon against aging
New research led by the University of Sydney has found...
Read more...
Wild strawberry flavor for foods, from a fungus
Strawberry flavor is favored by many in their beverages, confectionaries...
Read more...
Leafy greens may help relieve chronic migraine
Migraines are considered to be a major public health concern...
Read more...
News coming your way
The biggest news about our planet delivered to you each day