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Location of the state of Maryland in the United States of America. This is a list of symbols of the U.S. state of Maryland. Most of the items in the list are officially recognized symbols created by an act of the Maryland General Assembly and signed into law by the governor. However, two of the more famous symbols of Maryland, the state motto ...
The coelacanths were thought to have gone extinct 66 million years ago, until a living specimen belonging to the order was discovered in 1938. A living fossil is an extant taxon that phenotypically resembles related species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time ...
This is a list of mammals of Maryland, those mammals native to or immediately off the coast of the U.S. state of Maryland. [1]Maryland does not have a designated state mammal, but does designate the Calico cat as its state cat, the Chesapeake Bay Retriever as its state dog, and the Thoroughbred as its state horse.
Schott. Nephrodium acrostichoides Michx. Polystichum acrostichoides, commonly denominated Christmas fern, is a perennial, evergreen fern native to eastern North America, from Nova Scotia west to Minnesota and south to Florida and eastern Texas. [3] It is one of the most common ferns in eastern North America, being found in moist and shady ...
Equisetidae is one of the four subclasses of Polypodiopsida (ferns), a group of vascular plants with a fossil record going back to the Devonian. They are commonly known as horsetails. [ 2 ] They typically grow in wet areas, with whorls of needle-like branches radiating at regular intervals from a single vertical stem.
The tree ferns are arborescent (tree-like) ferns that grow with a trunk elevating the fronds above ground level, making them trees. Many extant tree ferns are members of the order Cyatheales, to which belong the families Cyatheaceae (scaly tree ferns), Dicksoniaceae, Metaxyaceae, and Cibotiaceae. It is estimated that Cyatheales originated in ...
Extant ferns are herbaceous perennials and most lack woody growth. [4] When woody growth is present, it is found in the stem. [5] Their foliage may be deciduous or evergreen, [6] and some are semi-evergreen depending on the climate. [7] Like the sporophytes of seed plants, those of ferns consist of stems, leaves and roots.
List of invasive plant species in Maryland. Appearance. Japanese stiltgrass (Microstegium vimineum) invasion of a forest in Greenbelt, Maryland. Numerous non-native plants have been introduced to Maryland in the United States and many of them have become invasive species. The following is a list of some non-native invasive plant species ...