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Reference · Crops

Grasses

Grasses (Latin: Poaceae) form one of the most important plant families in agriculture, encompassing vital cereal crops like wheat, rice, maize, barley, and oats. These monocotyledonous plants are the foundation of global food security, providing essential grains for human consumption, livestock feed, and diverse industrial raw materials such as biofuel and textiles.

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Leymus5 Lemongrass4 Lachnagrostis2 Lasiacis2 Leptaspis2 Leptochloa2 Lepturus2 Koordersiochloa1 Kuruna1 Lamarckia1 Lasiurus1 Leersia1 Leptocarydion1 Leptocoryphium1 Leptothrium1
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Koordersiochloa Koordersiochloa 1 item Kotschy's goatgrass Aegilops kotschyi Krylov's Feather Grass Stipa krylovii Kurdistan feather grass Stipa kurdistanica Kuruna Kuruna 1 item Lace grass Eragrostis capillaris Lachenal's fescue Festuca lachenalii Lachnagrostis Lachnagrostis 2 items Lagasca's needle grass Stipa lagascae Lahul bluegrass Poa lahulensis Lamarckia Lamarckia 1 item Lance-leaved panicgrass Panicum lancearium Large melic grass Melica macra Large-anther brome Bromus macrantherus Large-leaved bristlegrass Setaria megaphylla Lasiacis Lasiacis 2 items Lasiurus Lasiurus 1 item Lax-flowered panicgrass Panicum laxiflorum Leafy panicgrass Panicum frondescens Lebanese wheatgrass Elymus libanoticus Leersia Leersia 1 item Leersia drepanothrix Leersia drepanothrix Leersia japonica Leersia japonica Leersia sayanuka Leersia sayanuka Leersia tisserantii Leersia tisserantii Leiberg's panicgrass Panicum leibergii Lemmon's alkali grass Puccinellia lemmoni Lemmon's needlegrass Stipa lemmonii Lemongrass Cymbopogon 4 items Leonian bluegrass Poa legionensis Leptaspis Leptaspis 2 items Leptocarydion Leptocarydion 1 item Leptochloa Leptochloa 2 items Leptochloa caerulescens Leptochloa caerulescens Leptochloa chloridiformis Leptochloa chloridiformis Leptochloa decipiens Leptochloa decipiens Leptochloa domingensis Leptochloa domingensis Leptochloa mucronata Leptochloa mucronata Leptochloa nealleyi Leptochloa nealleyi Leptochloa neesii Leptochloa neesii Leptochloa panicea Leptochloa panicea Leptochloa panicoides Leptochloa panicoides Leptochloa scabra Leptochloa scabra Leptochloa virgata Leptochloa virgata Leptocoryphium Leptocoryphium 1 item Leptothrium Leptothrium 1 item Lepturus Lepturus 2 items Lessing's needle grass Stipa lessingiana Letterman's needlegrass Stipa lettermanii Leymus Leymus 5 items Liebmann's bristlegrass Setaria liebmannii Ligulate bluegrass Poa ligulata Ligurian fescue Festuca ligustica Limnodea Limnodea Limnopoa Limnopoa Lindenberg's bristlegrass Setaria lindenbergiana Lindheimer's muhly Muhlenbergia lindheimeri Lithuanian mannagrass Glyceria lithuanica Little barley Hordeum pusillum Little bluegrass Poa minor

Grasses

Botanically, grasses are characterized by fibrous root systems, jointed stems known as culms, and leaves with parallel venation. Their flowers are typically arranged in spikelets, forming complex inflorescences like spikes or panicles. The fruit is a caryopsis, a type of grain in which the fruit wall is fused to the seed coat, distinguishing them from other botanical fruits.

The distribution of grasses is worldwide, ranging from equatorial regions to subarctic zones. This adaptability is the result of long-term natural evolution and centuries of selective breeding. Most cultivated grasses originated in fertile valleys of the Near East, East Asia, and the Americas, where ancient civilizations first practiced sedentary agriculture.

Agronomic requirements depend on the specific species, though most grasses thrive in well-drained soils rich in nitrogen, phosphorus, and potassium. Crop management practices include soil tillage, strategic fertilization, and adherence to crop rotation cycles to maintain soil health. Irrigation is essential for high-yield species like rice, while others are adapted to rain-fed farming systems.

Key challenges in cultivation include fungal pathogens like rusts, smuts, and mildews, alongside insect pests such as aphids, stem borers, and locusts. Integrated Pest Management (IPM) strategies, involving the use of resistant crop varieties, biological control, and judicious pesticide application, are essential for ensuring sustainable yields and optimal grain quality.

  • Cereals: primary grains for food production.
  • Forage grasses: critical for livestock pastures and silage.
  • Turf and ornamental grasses: significant for landscaping and soil erosion control.