When cut from the plant, the stems are hollow and look like miniature soda straws. helps sort out most of the differences but there can still be some confusion. "Sedges have edges; rushes are round; and grasses are hollow right up from the ground." Back then the differences were important. Sedges and rushes are often confused with grasses, for all three usually have long thin stems and long, relatively narrow leaves with parallel veins. The amateur would probably call all of these grasses, but in fact some are sedges and some are rushes. Here is a little rhyme to help tell the three apart: "sedges have edges, rushes are round, and grasses have joints." Feb 28/14: Site redesign - New look, same great content! r***@gmail.com 2019-04-10 12:46:00 UTC. This is how I learned the rhyme: 'Sedges have edges, rushes are round, grasses have knees that bend to the ground.' Rushes ( Juncaceae ) often look similar to sedges, but their stem is round. Inland Rush - 8 - 34 in. If there aren't any at all, it could be some kind of rush. Often members have three sharp sides, note the phrase "sedges have edges". There is a poem of some sort that contains the line "sedges have edges" Does anyone know of it? Look for joints. “Nodes” are swollen regions of the stem, where leaves are attached, and can be felt by running your hand along the stem. The bunchy way it's … However, sedges do NOT always have sides, such as the round stem of Scirpus cyperinus (wool grass). Sedges are superficially similar to grasses and rushes, and differentiating the three can be difficult. But with sedges–which have no nodes–it is the culms themselves that are solid (not to mention triangular). The 'knees' of grasses are joint-like nodes found along round, hollow stems. Rushes are round. Like grasses and sedges, the rush (Juncaceae) family is part of the enormous grouping of Flowering plants known as Angiosperms and so are frequently confused with each other as they often have very similar characteristics. Carex gravida . The stems of sedges and rushes are solid; in cross-section the stems of rushes are round, while those of sedges are triangular and so have edges. Rush stems, on the other hand, are round and solid. The phrase “sedges have edges and rushes are round” helps to differentiate these plant types from grasses, which have jointed stems. at 10:29 AM . Sedges (Cyperaceae) More ancient than grasses (appearing more than 160 million years ago), and more tolerant of wet conditions. Distinguished from other two families by lacking hollow stems and lacking nodes or joints. Grasses, sedges and rushes belong to different plant families, and they have distinct characteristics that set them apart from each other. Jan 21, 2014 - Here is a great resource on Sedges in Maine. Sedges have edges, and rushes are round, But grasses have nodes from their tips to the ground. and rushes are round, grasses have joints, and all can be found where willow abound. Sedges have edges, and rushes are round, But grasses have nodes from their tips to the ground. It’s botany time! Sedges also lack the swollen nodes or joints and tend to be darker green than most of our native grasses. ): Sedge stems have edges, Rush stems are round, And Grasses have leaves all … The “edges” are there because of the way the leaves meet each other along their edges, while the “round” rushes usually have one leaf sheathing the stem. I'll admit that the scansion could use a little work--but more accurate, hmm? Using the rhyme 'Sedges have edges; rushes are round; grasses are hollow; what have you found?' Several species of rush occur around Las Vegas, and while some can be recognized, it is sufficient for the casual observer to recognize rushes in contrast to grasses (e.g., Stipa and Poa spp.) What is a sedge? These hollow stems bring air to the base of the plant, since its roots are often submerged in mud and unable to get sufficient oxygen. Some sedges don’t have obvious edges. "Sedges have edges; rushes are round; grasses are hollow right up from the ground." Sedges (Cyperaceae), rushes (Juncaceae) and grasses (Poaceae) can be among the hardest plants to identify because they lack large, showy flowers. “Sedges have edges, rushes are round and grasses are hollow right up from the ground!” see over g . and sedges (e.g., Scirpus spp. Email This BlogThis! Sedges usually have a triangular stem, rushes have round stems, and grasses have a jointed stem. .. Flowers in: May - August. Grass nodes or joints are not always easy to find. Sedges have edges, rushes are round, grasses have knees that bend to the ground. This entry was posted on July 4, 2013. Juncus interior . Pendulous sedge is not currently considered to be under threat. Bookmark the permalink. We like to remember with this little poem: sedges have edges, rushes are round, grasses have joints all the way to the ground. In grasses, the culms are cylindrical and covered in nodes (swollen joints); if you were to cut open a grass or bamboo, you would notice that the culms are hollow, and the nodes are solid. Of course, it seems to me that many grasses are round, While sedges appear similar to grasses, they are actually in a different plant family. The rule of thumb is that sedges have edges, rushes are round, and grasses have nodes down to the ground. Whilst you are out enjoying your various pursuits in the mountains of Britain the vast areas of grassland that make up extensive areas of our upland regions often go without much consideration for their diversity or history. Sedges have edges, rushes are round, and grasses have joints. Thanks John. The sedge I was shown when I was taught this rhyme had a triangular cross-section. Seller Inventory # 8525196. Grasses are hollow, all the way to the ground. Then, look at the leaves. There are some 5,500 species of sedge. Sedges have triangular-shaped, solid stems. Their stems are solid, not hollow, and usually triangular in cross section. Leave a comment Post navigation. Amateur botanists often remember the sedges by the following mnemonic: “sedges have edges, rushes are round, grasses have knees that bend to the ground”. Threats and conservation. Leave a Reply Cancel reply. Leaves are arranged spirally in three ranks – grasses have alternate leaves forming two ranks. Sedges, fond of wet places, flower from the sides of stalks which have edges. By the way, rushes also have round stems but they are solid. In good all round condition. Why was this important and is it still important today? Sedges have edges,/rushes are round, And grasses are hollow/except for the several genera that have solid internodes. Sedges (Cyperaceae) have a triangular solid stem, so when you feel it between your fingers, there is an edge. Sedges have edges, rushes are round, and grasses are hollow right up from the ground. Post or e-mail. Maybe this will help you get your plant into the right grouping as well! Collins Guide to the Grasses, Sedges Rushes and Ferns of Britain and Northern Europe. The leaves of rushes are flat and are on two sides of the stem, like grasses. Sedges, grasses and rushes are three families of grass-like plants, and out of the three families, ornamental grasses are known to have the showiest flowers. Permalink. Frequently, people just lump all these monocots together and just ignore them. Sedges vs. Grasses vs. To help remember the difference, botany students recite this rhyme: "Sedges have edges, and rushes are round, But grasses have nodes from their tips to the ground." The "edge" refers to the edges of the triangular stems most sedges share. Sedges and rushes provide food for a host of wetland and woodland wildlife, such as ducks, beaver, and deer, as well as for livestock. USUALLY! There is one characteristic of the sedge family that can be used to differentiate it from the grasses, and it is best remembered with the phrase “sedges have edges.” If you feel the stem of a sedge plant you will notice it is triangular and has sharp edges, while grasses have a round stem. It is no longer socially acceptable, but goes “Sedges have edges and cut, Rushes rush down with joints in the ground, but Grasses like asses are round and have holes” This taught young and old alike how to differentiate the two; crude and funny, but everybody would remember. Know Your Stuff Sedges, Rushes & Grasses Sedges have edges, rushes are round and grasses have knuckles right down to the ground. (A few exceptional species have stems that are completely solid.) I have also included a graphic below which illustrates the differences between grasses, sedges, and rushes. Rushes, also fond of wet places, flower from the top and have round stalks, no edges, like grass. Rushes are always round but so are many grasses and sedges . Diminutive parts and superficial similarities make graminoid identification difficult… Does it really matter? Grasses have round, hollow stems with solid joints called nodes. A grass, a sedge or a rush? What's New (40 species now on this site, 92 species still to come) Nov 18/14: Species names are being updated to conform to VASCAN. Heavy Sedge - 12 - 24 in. Graminoids - Grasses, Sedges and Rushes. Grasses ( Poaceae ) have hollow stems with nodes, or joints, that often have a leaf attached to the node. OK, how about: Sedges have edges,/rushes are round, And grasses are usually/hollow, I've found. Sedges have edges. Sedges have edges, rushes are round and grasses have knees that bend to the ground. Sedges have edges, rushes are round, grasses have joints all the way to the ground. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,450grams, ISBN:9780002191364. Sedges, grasses, and rushes often inhabit wet areas. Rushes • Sedges: Solid, triangular stems (“sedges have edges”) with some exceptions; leaves 3-ranked; fruit a nutlet subtended by a scale • Grasses: Hollow (between the nodes), round stems; leaves 2-ranked; fruit a grain covered by two papery scales • Rushes: Solid, round stems; leaves few; fruit a several to Keep in touch with the nature you love without having to leave the house. We like to remember with this little poem: sedges have edges, rushes are round, grasses have joints all the way to the ground. Grasses prefer dry places and flower from the top of round stalks which are jointed, like bamboo, a woody grass. More information about this seller | Contact this seller 7. A useful saying to tell grasses, sedges and rushes apart (although this is not strictly true for all species) is: 'sedges have edges, rushes are round and grasses are hollow right up from the ground'. But grasses have joints all the way to the ground. 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