Knowledge Tree
grasses
Facts (19)
Sources
Botanical Studies | Open Educational Resources and Data digitalcommons.humboldt.edu 5 facts
referenceJames P. Smith Jr. authored 'Grasses Endemic to the Conterminous United States', a study on grass species native to that specific region.
referenceJames P. Smith Jr. authored 'Rare, Endangered, and Threatened Grasses of the Conterminous United States', a report on at-risk grass species.
referenceJames P. Smith Jr. authored 'Grasses of the Conterminous United States: Persons after Whom Grasses Have Been Named', which documents the etymology of grass names based on individuals.
referenceJames P. Smith Jr. authored 'Grasses of the United States: Number of Genera and Taxa by State', a statistical breakdown of grass diversity by state.
referenceJames P. Smith Jr. authored 'The Subfamilies & Tribes of the Grasses of the United States: Evolving Concepts', which discusses the classification of grasses.
Changes in Diet Drove Physical Evolution in Early Humans home.dartmouth.edu Jul 31, 2025 4 facts
claimBetween 3.4 million and 4.8 million years ago, early hominin species lacked the teeth and digestive systems optimal for consuming tougher plants like grasses and sedges.
claimThe human ancestor Homo rudolfensis reduced its consumption of grasses and increased its intake of oxygen-depleted water approximately 2.3 million years ago, as indicated by a plummet in carbon and oxygen isotope ratios in their teeth.
claimEarly hominin species shifted their diet away from fruits, flowers, and insects toward grasses and sedges between 3.4 million and 4.8 million years ago.
procedureResearchers analyzed fossilized hominin teeth for carbon and oxygen isotopes to identify the consumption of graminoids, a category of plants that includes grasses and sedges.
The role of Plant Foods in the evolution and Dispersal of early Humans kernsverlag.com Jul 30, 2022 1 fact
claimIsotopic evidence from A. bahrelghazali fossils found at Koro Toro in Chad indicates the consumption of C4 resources, specifically grasses and sedges, including tubers and corms, as reported by Lee-Thorp et al. (2012).
Introduction to Biological Classification | CK-12 Foundation flexbooks.ck12.org 1 fact
claimThe kingdom Plantae includes trees, grasses, and certain forms of algae.
Plantae kingdom (Honors) - KaiserScience kaiserscience.wordpress.com 1 fact
claimThe definition of land plants (Embryophyta) includes liverworts, hornworts, mosses, and vascular plants such as trees, grasses, shrubs, bushes, and flowers.
Panpsychism - Wikipedia en.wikipedia.org 1 fact
claimThe Tiantai patriarch Zhanran defended the idea that Buddha-nature exists in grasses and trees.
Early Human Diets - California Academy of Sciences calacademy.org Jun 4, 2013 1 fact
claimStarting about 3.5 million years ago, early human species such as Australopithecus afarensis and Kenyanthropus platyops began incorporating grasses, sedges, and succulents—or animals that consumed those plants—into their diets.
5.9.1: Kingdom Plantae - Evolution and Phylogeny bio.libretexts.org Nov 24, 2025 1 fact
claimMonocots include grasses and lilies, while eudicots (or dicots) form a polyphyletic group.
The Ecology of Photosynthetic Pathways | Learn Science at Scitable nature.com 1 fact
referenceOsborne, C. P. & Freckleton, R. P. published 'Ecological selection pressures for C4 photosynthesis in the grasses' in Proceedings of the Royal Society B 276, 1753–1760 in 2009.
Ecologists Study the Interactions of Organisms and Their Environment nature.com 1 fact
claimGrasses growing near geothermal vents gain heat tolerance from a virus residing within a fungus inside their roots, as reported by Marquez (2007).
To Follow the Real Early Human Diet, Eat Everything scientificamerican.com Jun 25, 2024 1 fact
accountResearchers analyzing tartar preserved in the teeth of two Australopithecus sediba individuals from South Africa found microscopic bits of silica from plants, including bark, leaves, sedges, and grasses, consumed nearly two million years ago.
Nutritional Evolution – Human Origin and Evolution ebooks.inflibnet.ac.in 1 fact
claimRecent chemical and microwear analysis suggests that australopithecines exploited cereals, grasses, and sedges more than previously speculated.