Search results
Results From The WOW.Com Content Network
Nettle refers to plants with stinging hairs, particularly those of the genus Urtica. It can also refer to plants which resemble Urtica species in appearance but do not have stinging hairs. Plants called "nettle" include:
Urtica dioica, often known as common nettle, burn nettle, stinging nettle (although not all plants of this species sting) or nettle leaf, or just a nettle or stinger, is a herbaceous perennial flowering plant in the family Urticaceae. Originally native to Europe, much of temperate Asia and western North Africa, [2] it is now found worldwide.
[citation needed] Decomposition of dead plant material causes complex organic compounds to be slowly oxidized lignin-like humus or to break down into simpler forms (sugars and amino sugars, aliphatic and phenolic organic acids), which are further transformed into microbial biomass (microbial humus) or are reorganized, and further oxidized, into ...
It is also a biomass feedstock to power electricity plants or to produce biogas, and a high-quality organic fertilizer. [8] In 2007, Goldman Sachs cited Jatropha curcas as one of the best candidates for future biodiesel production. [9] It is resistant to drought and pests, and produces seeds containing 27-40% oil, [10] averaging 34.4%. [11]
The plant is the plant source of morphine, used for pain relief. Morphine made from the refined and modified sap is used for pain control in people with severe cancer. [115] Passiflora: Passion flower: Peganum harmala: Syrian Rue (common name Harmal) Pelargonium sidoides: Umckaloabo, or South African Geranium: Possibly useful for treating ...
There are also many wild edible plant stems. In North America, these include the shoots of woodsorrel (usually eaten along with the leaves), chickweeds, galinsoga, common purslane, Japanese knotweed, winter cress and other wild mustards, thistles (de-thorned), stinging nettles (cooked), bellworts, violets, amaranth and slippery elm, among many others.
Photosynthesis is the main means by which plants, algae and many bacteria produce organic compounds and oxygen from carbon dioxide and water (green arrow). An autotroph is an organism that can convert abiotic sources of energy into energy stored in organic compounds, which can be used by other organisms.
A stinging plant or a plant with stinging hairs is a plant with hairs on its leaves or stems that are capable of injecting substances that cause pain or irritation. Other plants, such as opuntias , have hairs or spines that cause mechanical irritation, but do not inject chemicals.