Portal:Plants
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Plants are a major group of life forms and include familiar organisms such as trees, herbs, bushes, 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.
Banksia epica is a shrub that grows on the south coast of Western Australia. A spreading bush with wedge-shaped serrated leaves and large creamy-yellow flower spikes, it grows up to 3½ metres (11½ ft) high. It is known only from two isolated populations in the remote south east of the state, near the western edge of the Great Australian Bight. Both populations occur amongst coastal heath on cliff-top dunes of siliceous sand.
One of the most recently described Banksia species, it was probably seen by Edward John Eyre in 1841, but was not collected until 1973, and was only recognised as a distinct species in 1988. There has been very little research on the species since then, so knowledge of its ecology and cultivation potential is limited. It is placed in Banksia ser. Cyrtostylis, alongside its close relative, the well-known and widely cultivated B. media (Southern Plains Banksia). Pines are mostly monoecious, having the male and female cones on the same tree, though a few species are sub-dioecious with individuals predominantly, but not wholly, single-sex. The male cones are small, typically 1-5 cm long, falling as soon as they have shed their pollen. The larger female cones, such as this Monterey Pine cone, are typically 3-60 cm long, having numerous spirally arranged scales with two seeds on each fertile scale. Plants • Lists of plants • Plant families • Green algae • Bryophytes • Lycopodiophyta • Pteridophyta • Angiosperms • Gymnosperms • Invasive plant species • Plant pathogens and diseases Aquatic plants • Carnivorous plants • Domesticated plants • Edible plants • Epiphytes • Extinct plants • Garden plants • Halophytes and salt tolerant plants • Medicinal plants • Non-vascular plants • Parasitic plants • Poisonous plants • Shrubs Biosphere • Botany• Evolutionary history of plants• Flower• Forest• Fruit• Garden• Gardening• Greenhouse• Houseplant• List of poisonous plants• Paleobotany• Photosynthesis• Plant cell• Plant defense against herbivory• Plant perception (paranormal)• Plant perception (physiology)• Rapid plant movement• Tree• Vegetable• Vegetation• Phytopathology
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