Miscanthus | |
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Miscanthus sinensis | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Poales |
Family: | Poaceae |
Subfamily: | Panicoideae |
Supertribe: | Andropogonodae |
Tribe: | Andropogoneae |
Subtribe: | Saccharinae |
Genus: | Miscanthus Andersson (1855) |
Type species | |
Miscanthus capensis | |
Synonyms [3] | |
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Miscanthus, or silvergrass, [4] is a genus of African, Eurasian, and Pacific Island plants in the grass family, Poaceae. [5] [6]
14 species are accepted. [3]
Several species formerly placed in genus Miscanthus are now placed in other genera, including Chloris, Miscanthidium, Pseudopogonatherum, Saccharum , and Spodiopogon . [7] [3]
A wide variety in cold tolerance occurs in the genus. M. × giganteus is especially vulnerable to cold, and a cultivar of M. sinensis has the best known cold tolerance. [8]
M. sinensis is widely cultivated as an ornamental plant, and is the source of several cultivars. In Japan, where it is known as susuki (すすき), it is considered an iconic plant of late summer and early autumn. It is mentioned in the Man'yōshū (VIII:1538) as one of the seven autumn flowers (aki no nana kusa, 秋の七草). It is used for the eighth month in hanafuda playing cards. It is decorated with bush clover for the Mid-Autumn Festival. Miscanthus has also excellent fiber properties for papermaking.
Miscanthus × giganteus (Miscanthus giganteus, giant miscanthus) [A 1] is a highly productive, rhizomatous C4 perennial grass, originating from Asia. [A 2] It is a sterile (noninvasive) hybrid of M. sinensis and M. sacchariflorus, and grows to heights of more than 4 m (13 ft) in one growing season (from the third season onwards). In temperate climates such as in Europe, the dry mass yield is 10–40 metric tons per hectare (4.5–17.8 short ton/acre) per year, depending on location. [A 3] Just like Pennisetum purpureum and Saccharum ravennae (which grow to the same height), it is also called "elephant grass".
Miscanthus' ability to grow on marginal land and in relatively cold weather conditions, its rapid CO2 absorption, its significant carbon sequestration, and its high yield make it a favorite choice as a biofuel. [9] [10]
Miscanthus is mainly used for heat and power, but can also be used as input for ethanol production (if harvested wet). If harvested dry, it can be burnt directly in biomass boilers, or processed further (pellets, briquettes). It can also be used as a "green" building material, for both wall construction and as general insulation. An experimental house based on Miscanthus straw bales was built in 2017. [11] Miscanthus cropping enhances nutrient cycling in the plant–soil system. [12]
Saccharum is a genus of tall perennial plants of the broomsedge tribe within the grass family.
Panicum virgatum, commonly known as switchgrass, is a perennial warm season bunchgrass native to North America, where it occurs naturally from 55°N latitude in Canada southwards into the United States and Mexico. Switchgrass is one of the dominant species of the central North American tallgrass prairie and can be found in remnant prairies, in native grass pastures, and naturalized along roadsides. It is used primarily for soil conservation, forage production, game cover, as an ornamental grass, in phytoremediation projects, fiber, electricity, heat production, for biosequestration of atmospheric carbon dioxide, and more recently as a biomass crop for ethanol and butanol.
Cellulosic ethanol is ethanol produced from cellulose rather than from the plant's seeds or fruit. It can be produced from grasses, wood, algae, or other plants. It is generally discussed for use as a biofuel. The carbon dioxide that plants absorb as they grow offsets some of the carbon dioxide emitted when ethanol made from them is burned, so cellulosic ethanol fuel has the potential to have a lower carbon footprint than fossil fuels.
The Andropogoneae, sometimes called the sorghum tribe, are a large tribe of grasses (family Poaceae) with roughly 1,200 species in 90 genera, mainly distributed in tropical and subtropical areas. They include such important crops as maize (corn), sugarcane, and sorghum. All species in this tribe use C4 carbon fixation, which makes them competitive under warm, high-light conditions.
Cenchrus purpureus, synonym Pennisetum purpureum, also known as Napier grass, elephant grass or Uganda grass, is a species of perennial tropical grass native to the African grasslands. It has low water and nutrient requirements, and therefore can make use of otherwise uncultivated lands.
In agriculture, a living mulch is a cover crop interplanted or undersown with a main crop, and intended to serve the purposes of a mulch, such as weed suppression and regulation of soil temperature. Living mulches grow for a long time with the main crops, whereas cover crops are incorporated into the soil or killed with herbicides.
Biomass to liquid is a multi-step process of producing synthetic hydrocarbon fuels made from biomass via a thermochemical route.
Arundo donax is a tall perennial cane. It is one of several so-called reed species. It has several common names including giant cane, elephant grass, carrizo, arundo, Spanish cane, Colorado river reed, wild cane, and giant reed. Arundo and donax are respectively the old Latin and Greek names for reed.
Lignocellulose refers to plant dry matter (biomass), so called lignocellulosic biomass. It is the most abundantly available raw material on the Earth for the production of biofuels. It is composed of two kinds of carbohydrate polymers, cellulose and hemicellulose, and an aromatic-rich polymer called lignin. Any biomass rich in cellulose, hemicelluloses, and lignin are commonly referred to as lignocellulosic biomass. Each component has a distinct chemical behavior. Being a composite of three very different components makes the processing of lignocellulose challenging. The evolved resistance to degradation or even separation is referred to as recalcitrance. Overcoming this recalcitrance to produce useful, high value products requires a combination of heat, chemicals, enzymes, and microorganisms. These carbohydrate-containing polymers contain different sugar monomers and they are covalently bound to lignin.
Energy crops are low-cost and low-maintenance crops grown solely for renewable bioenergy production. The crops are processed into solid, liquid or gaseous fuels, such as pellets, bioethanol or biogas. The fuels are burned to generate electrical power or heat.
Miscanthus sinensis, the eulalia or Chinese silver grass, is a species of flowering plant in the grass family Poaceae, native to eastern Asia throughout most of China, Japan, Taiwan and Korea.
The term Elephant grass may refer to the following grass species:
Miscanthus × giganteus, also known as the giant miscanthus, is a sterile hybrid of Miscanthus sinensis and Miscanthus sacchariflorus. It is a perennial grass with bamboo-like stems that can grow to heights of 3–4 metres (13 ft) in one season. Just like Pennisetum purpureum, Arundo donax and Saccharum ravennae, it is also called elephant grass.
Short rotation coppice (SRC) is coppice grown as an energy crop. This woody solid biomass can be used in applications such as district heating, electric power generating stations, alone or in combination with other fuels. Currently, the leading countries in area planted for energy generation are Sweden and the UK.
Second-generation biofuels, also known as advanced biofuels, are fuels that can be manufactured from various types of non-food biomass. Biomass in this context means plant materials and animal waste used especially as a source of fuel.
Sugarcane or sugar cane is a species of tall, perennial grass that is used for sugar production. The plants are 2–6 m (6–20 ft) tall with stout, jointed, fibrous stalks that are rich in sucrose, which accumulates in the stalk internodes. Sugarcanes belong to the grass family, Poaceae, an economically important flowering plant family that includes maize, wheat, rice, and sorghum, and many forage crops. It is native to the warm temperate and tropical regions of India, Southeast Asia, and New Guinea.
Chloris is a widespread genus of monophyletic grasses belonging to the family Poaceae, known generally as windmill grass or finger grass. The genus is found worldwide, but especially in the tropical and subtropical regions, and more often in the Southern Hemisphere. The species are variable in morphology, but in general, the plants are less than 0.5 m in height. They bear inflorescences shaped like umbels, with several plumes lined with rows of spikelets. The genus is characterized by the series of sterile florets above the lowest fertile ones, spikes usually 4–10 in numbers, approximated or in a slightly separated series of 10–20 spikes, rarely an indefinite numbers of terminal spikes. In India, 11 species are known to occur in which only two are endemic viz. Chloris wightiana Nees ex Steud. and Chloris bournei Rangachariar & Tadulingam.
Eulalia is a genus of Asian, African, and Australian plants in the grass family.
M. giganteus may refer to:
Spodiopogon formosanus or the Taiwan oil millet is a species of perennial grass in the family Poaceae. It is endemic to Taiwan. It is traditionally grown as a cereal crop by the Taiwanese aborigines.
Field experiments with the only genotype currently commercially available, Miscanthus × giganteus, a clone-based interspecies hybrid, have revealed its great photosynthetic efficiency, high biomass yield capacity, low input demands, and good tolerance of temperate climates, and many of the characteristics that make miscanthus an ideal biomass crop.