Search results
Results from the WOW.Com Content Network
The differences in broadleaf weeds' structure and growth habits make them easy to distinguish from narrow-leaved weedy grasses. [5] Most broadleaf weeds have leaves with net-like veins and nodes that contain one or more leaves, and they may have showy flowers, [6] while grassy weeds appear as a single leaf from a germinated seed. [7]
Panicum capillare, known by the common name witchgrass, [1] is a species of grass. It is a native plant to most of North America from the East Coast through all of the West Coast and California. It can be found as an introduced species in Eurasia, and as a weed in gardens and landscaped areas. [2] It grows in many types of habitat.
Variegated form, garden of Islington College, Nepal. Phalaris arundinacea, or reed canary grass, [1] is a tall, perennial bunchgrass that commonly forms extensive single-species stands along the margins of lakes and streams and in wet open areas, with a wide distribution in Europe, Asia, northern Africa and North America. [2]
The prevalent species of Digitaria in North America are large crabgrass (D. sanguinalis), sometimes known as hairy crabgrass; and smooth crabgrass (D. ischaemum). These species often become problem weeds in lawns and gardens, growing especially well in thin lawns that are watered lightly, under-fertilized, and poorly drained. They are annual ...
In Hawaii, it is a weed of sugarcane (Saccharum officinarum). [3] [5] In other areas, it can be found in turf and orchards. [5] In the Florida turfgrass industry, it is the second-worst weed known. [9] The grass can grow in a variety of habitats, but it does not tolerate cold and it is rarely found above subtropical latitudes or at altitude. [6]
Poa trivialis (rough meadow-grass), showing the ligule structure. Poa [2] is a genus of about 570 species of grasses, native to the temperate regions of both hemispheres. Common names include meadow-grass (mainly in Europe and Asia), bluegrass (mainly in North America), tussock (some New Zealand species), and speargrass. Poa is Greek for 'fodder'.
Bromus is a large genus of grasses, classified in its own tribe Bromeae. [2] [3] They are commonly known as bromes, brome grasses, cheat grasses or chess grasses.Estimates in the scientific literature of the number of species have ranged from 100 to 400, but plant taxonomists currently recognize around 160–170 species.
Taeniatherum is a genus of Eurasian and North African plants in the grass family. [3] [4] [5]The only recognized species is medusahead (Taeniatherum caput-medusae) which is native to southern and central Europe (from Portugal to European Russia), North Africa (Algeria, Morocco, Tunisia), and Asia (from Turkey and Saudi Arabia to Pakistan and Kazakhstan).