Plant

Definition and Taxonomic history

• Plants are eukaryotes that form the kingdom Plantae.
• They are predominantly photosynthetic organisms and use chloroplasts to produce sugars.
• Some plants are parasitic.
• The plant kingdom historically included algae and fungi, but current definitions exclude them.
• Aristotle classified living things into plants and animals based on their souls.
• Theophrastus continued Aristotle's work in plant taxonomy.
• Linnaeus created the modern system of scientific classification and named the plant kingdom Vegetabilia.
• There are about 382,000 accepted species of plants, with the majority producing seeds.
• Different green plant divisions have varying species count estimates.

Evolutionary history

• Land plants evolved from ancestors in water.
• The first land plants appeared around 450 million years ago.
• Complex plants may have developed over 1000 million years ago.
• Bryophytes, club mosses, and ferns appeared in the fossil record.
• Basic features of plants today, such as roots and leaves, were present by the end of the Devonian period.

Phylogeny

• A 2019 phylogeny based on genomes and transcriptomes proposed the relationship between plant species.
• Algal groups are supported by phylogenies based on genome sequencing.
• Chlorophyte algae and streptophyte algae are treated as paraphyletic in the analysis.
• The phylogeny includes the clade Viridiplantae, which consists of green algae and land plants.
• The clade Archaeplastida includes Viridiplantae, red algae, and glaucophytes.

Importance and uses

• Plants provide a substantial proportion of the world's molecular oxygen.
• They create sugars that supply energy for Earth's ecosystems.
• Humans use plants for food, building materials, ornaments, writing materials, and medicines.
• Grain, fruit, and vegetables have been domesticated for millennia.
• The scientific study of plants is known as botany.

Miscellaneous

• Plants can be parasitic and obtain energy from other plants or fungi.
• Plants historically included algae and fungi, but current definitions exclude them.

Plant Mentions

https://alternix.com/blogs/news/quitting-smoking-can-nicotine-pouches-help-you-kick-the-habit
https://alternix.com/blogs/news/understanding-nicotine-strengths-in-pouches
https://alternix.com/blogs/news/nicotine-pouches-vs-snus-difference-between-snus-and-nicotine-pouches
https://alternix.com/blogs/news/the-benefits-of-nicotine-pouches
https://alternix.com/blogs/news/how-to-use-a-nicotine-pouch
https://alternix.com/blogs/news/what-are-nicotine-pouches

Plant Data Sources

Reference	URL
Glossary	https://www.alternix.com/blogs/glossary-of-terms/plant
Wikipedia	http://en.wikipedia.org/wiki/Plant
Wikidata	https://www.wikidata.org/wiki/Q756
Knowledge Graph	https://www.google.com/search?kgmid=/m/05s2s