Vascular Plant


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

Vascular Plant

 

a plant whose organs contain vessels or tracheids, which conduct water and dissolved mineral salts, and sieve tubes, which conduct organic matter. Vascular plants include the Psilotophyta, Lycopodiophyta, Equisetopsida, Pterido-phyta, Gymnospermae, and Angiospermae, that is, all higher plants except mosses and liverworts. In these exceptions, the overall reduction of the sporophyte is also reflected in the disappearance of the conducting system typical of higher plants. In certain older plant classifications, a special taxonomic group of cryptogamic vascular plants was distinguished; it included the Psilotophyta, Lycopodiophyta, Equisetopsida, and Pteridophyta.

References in periodicals archive ?
Despite the spatial vicinity between plantations on Al and A2, only seven vascular plant species were common to both plantation types at the young age, whereas the total number of species recorded on Al and A2 was 54.
C values for all vascular plants known from the study area follow Swink and Wilhelm (1994) and the sample sites fall within the geographic scope of their research.
Insect larvae, crustacean, vascular plants, gastropod and bivalve molluscs undergo the largest exposure to technogenic radionuclides among all of the reference organisms (Fig.
Only 59 vascular plant species were found during this study (9 trips over a two year period) compared to 65 recorded by Kilburn and Ford (1963).
Those plants that developed one efficient transport system for water and another for the transport of organic solutes are called vascular plants.
1982-1987), led to the development of the Atlas of Rare Vascular Plants of Ontario, in which 542 rare vascular plant species were identified and mapped for the province.
Ten percent of the world's vascular plant species are located in Ecuador -- in an area that covers just 0.
Nearly a quarter of vascular plant varieties in Japan are endangered after a recent environmental report added 265 kinds to the list of such plants in peril, the Environment Agency said Wednesday.
44 percent of all vascular plant species and 35 percent of all terrestrial vertebrate species appear to be confined to just 25 "hotspots," which cover only 1.
In this discussion, "endangered" (E) refers to any state-native vascular plant taxon that, based on scientific research and field work, is believed to be or is in danger of becoming extinct or extirpated from all or a large part of the state in the immediate or foreseeable future if not given some type of protection or critical habitat designation (Arkansas Natural Heritage Commission 1987; Freeman et al 1979).
It was the strangest vascular plant he had ever seen, with only a single pair of opposite, extremely long, broad straplike leaves blown around on the desert soil.