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Juncus Marginatus
''Juncus marginatus'' is a species of flowering plant, it is a type of Juncaceae, rush with the common names of margined rush and grass-leaf rush. Description ''Juncus marginatus'' is a grass-like, herbaceous, short-lived perennial growing from short rhizomes. Plants produce dense tufts or clumps growing 30-130 cm tall. The plants are sometimes rhizomatous. The leaf blades are flat. The flowers are grouped together into a terminal inflorescence called a glomerulus. Each flower has three stamens and three sharply acute sepals that are reddish-brown in color. The plump and ribbed seeds are produced in a rounded and beakless capsule. The small yellow to light brown seeds are spindle-shaped, and around 0.5mm in length and lack a tail but have sharp points on either end (apiculate). The diploid chromosome count is 38. Distribution and habitat ''Juncus marginatus'' grows in North America in the Eastern and Southeastern US, ranging to Texas and South Dakota. It is also found Ontario Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juncaceae
Juncaceae is a family of flowering plants, commonly known as the rush family. It consists of 8 genera and about 464 known species of slow-growing, rhizomatous, herbaceous monocotyledonous plants that may superficially resemble grasses and sedges. They often grow on infertile soils in a wide range of moisture conditions. The best-known and largest genus is ''Juncus''. Most of the ''Juncus'' species grow exclusively in wetland habitats. A few rushes, such as '' Juncus bufonius'' are annuals, but most are perennials. Description The leaves are evergreen and well-developed in a basal aggregation on an erect stem. They are alternate and tristichous (i.e., with three rows of leaves up the stem, each row of leaves arising one-third of the way around the stem from the previous leaf). Only in the genus '' Distichia'' are the leaves distichous. The rushes of the genus ''Juncus'' have flat, hairless leaves or cylindrical leaves. The leaves of the wood-rushes of the genus ''Luzula' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anoka Sand Plain
Anoka Sand Plain is a sandy valley along the Mississippi River in Central Minnesota. It is a subsection of the Eastern Broadleaf Forest Province of Minnesota and Northeast Iowa Glacial moraine complex. It is generally a flat, sandy lake plain, but includes sandy terraces along the Mississippi River formed by glacial outwashes. The terrain includes small dunes, kettle lakes, tunnel valley A tunnel valley is a U-shaped valley originally cut under the glacial ice near the margin of continental ice sheets such as that now covering Antarctica and formerly covering portions of all continents during past glacial ages. They can be as lo ...s, and sandy terraces produced by the Mississippi River and other major tributaries that feed into the Mississippi. References Landforms of Minnesota Glacial erosion landforms {{geology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |