Portal:Plants

From Wikipedia, the free encyclopedia

The plants portal

Diversity of plants image version 5.png
Plants are a major group of life forms and include familiar organisms such as trees, herbs, shrubs, grasses, vines, ferns, mosses, and green algae. About 350,000 species of plants, defined as seed plants, bryophytes, ferns and fern allies, are estimated to exist currently. As of 2004, some 287,655 species had been identified, of which 258,650 are flowering and 15,000 bryophytes. Green plants, sometimes called metaphytes, obtain most of their energy from sunlight via a process called photosynthesis.

Aristotle divided all living things between plants (which generally do not move), and animals (which often are mobile to catch their food). In Linnaeus' system, these became the Kingdoms Vegetabilia (later Metaphyta or Plantae) and Animalia (also called Metazoa). Since then, it has become clear that the Plantae as originally defined included several unrelated groups, and the fungi and several groups of algae were removed to new kingdoms. However, these are still often considered plants in many contexts, both technical and popular. Indeed, an attempt to perfectly match "plant" with a single taxon is problematic, because for most people the term plant is only vaguely related to the phylogenic concepts on which modern taxonomy and systematics are based.

Selected article

Amaranthus brownii is an annual herb in the Amaranthaceae family. The plant is found only on the small island of Nihoa in the Northwestern Hawaiian Islands, growing on rocky outcrops at altitudes of 120–215 m (394–705 ft). It is one of nine species of Amaranthus in the Hawaiian Islands, but the only endemic Hawaiian species of the genus. It was first discovered during the Tanager Expedition in 1923 by botanist Edward Leonard Caum. A. brownii differs from other Hawaiian species of Amaranthus with its spineless leaf axils, linear leaves, and indehiscent fruits.

A. brownii is considered the rarest plant on Nihoa and has not been directly observed on the island since 1983. Past expeditions collected plant samples and seeds, but no specimens have managed to survive ex-situ conservation efforts outside of its native habitat. There are no known plants or seeds from A. brownii in any botanical gardens. Conservation and recovery plans for A. brownii have been proposed by the United States Fish and Wildlife Service (FWS) which administers the island of Nihoa as part of the Hawaiian Islands National Wildlife Refuge in the Papahānaumokuākea Marine National Monument. In 1996, the plant was listed by the FWS as an endangered species. In 2003, the FWS designated the island of Nihoa as a critical habitat for the plant and it was classified as critically endangered on the IUCN Red List.

Selected picture

Seed-head of Pulsatilla alpina (Ranunculaceae)
Cscr-featured.svg Credit: SiameseTurtle

Pulsatilla alpina, alpine pasqueflower, is an alpine plant found in the mountain ranges of central and southern Europe from central Spain to Croatia. It grows between 1,200 metres (3,900 ft) and 2,700 m (8,900 ft) above sea level, and is mildly toxic.

More selected pictures... Read more...

Categories

Plants

Related topics

Did you know...

Eucalyptusdeanei-Blue Mountains National Park.jpg

Tasks you can do


There are no active tasks for this page
    1. Describe all families, genera and species of the kingdom Plantae.
    2. For species, describe botanical properties, distribution, multiplication, usage (medicine, food, etc.), botanical history, cultivation information.
    3. Develop and implement a robust method of naming plant article for the ease of navigation and searching for Wikipedia users.
    4. Maintain Category:Plants and its subcategories.

    WikiProjects

    Related portals

    Associated Wikimedia

    The following Wikimedia Foundation sister projects provide more on this subject:

    Wikibooks
    Books

    Commons
    Media

    Wikinews 
    News

    Wikiquote 
    Quotations

    Wikisource 
    Texts

    Wikiversity
    Learning resources

    Wikivoyage 
    Travel guides

    Wiktionary 
    Definitions

    Wikidata 
    Database

    Wikispecies 
    Species

    Purge server cache

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Portal:Plants&oldid=805932423"
    This content was retrieved from Wikipedia : http://en.wikipedia.org/wiki/Portal:Plants
    This page is based on the copyrighted Wikipedia article "Portal:Plants"; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA