Aquatic, Wetland and Invasive Plant Glossary

Aquatic, Wetland and Invasive Plant Glossary

echinate search for term
- a. (L. echinus, a hedgehog) set with prickles; prickly, like a hedgehog; having sharp points.
ecology search for term
- n. (Gr. oikos, house; and -logy Gr. -logia, from legein, to speak) branch of science concerned with the interrelationships of organisms and their environments esp. as manifested by natural cycles and rhythms, community development and structure, interaction between different kinds of organisms, geographic distributions and population alteration.
edaphic search for term
- a., relating to, or determined by, conditions of the soil.
elliptic search for term
- a. (Gr. elleipsis, a falling short, defect, ellipse) an outline that is oval, narrowed to rounded at the ends and widest at about the middle (as the outline of a football); ellipsoid, a solid with an elliptical outline.
emarginate search for term
- vt. (L. emarginare, to deprive of the edge) said of leaves, sepals, or petals, and other structures that are notched at the apex.
emerge search for term
- vt. (L. emergere, to rise up, rise out) to rise out of a fluid or other covering.
emergent search for term
- n., (ME. Fr. L. emergent-, emergens, pres. part. of emergere,to emerge - more at emerge) any of various plants (as a cattail) rooted in shallow water and having most of the vegetative growth above the water.
emersed search for term
- adj., standing out of or rising above a surface as an aquatic plant with flower stalk emersed.
emersed plants search for term
- plants growing with their roots and a portion of the shoot below the water and the remainder of the shoot above the surface of the water.
enation search for term
- n. (L. enasci, to spring up) an abnormal growth of an organ or of an excresence upon any part of a plant.
endemic search for term
- a. (Gr. endemos, native, belonging to a people) a plant that is native to a particular country or region; not introduced or naturalized.
endocarp search for term
- n. (Gr. endo, within; karpos, fruit) the inter layer of the wall of a matured ovary; when its texture differs from the outer wall, it may be hard and stony, membranous, or fleshy.
ensiform search for term
- adj. (F. ensiforme, Fr. L. ensis sword + F. forme, form) having sharp edges and tapering to a slender point; having a shape suggesting a sword.
entire search for term
- a. (L. integer, whole, untouched, undiminished) having a margin devoid of any indentations, teeth, or lobes.
entomophilous search for term
- a. (Gr. entomon, insect; philein, to love) pollination by insects.
ephemeral search for term
- n. (Gr. ephemeros, lasting for a day) referring to an organ living a very short time, usually a day or less; lasting a very short time.
epigynous search for term
- a. (Gr. epi, upon; gyne, woman) growing upon the top of the ovary or seeming to do so, as petals, sepals, and stamens.
epigyny search for term
- n., the condition of being epigynous.
epipetalous search for term
- a. (Gr. epi, upon; petalon, leaf) having stamens inserted on petals.
equitant search for term
- a. (L. equitare, to ride) overlapping; said of leaves whose bases overlap the leaves within or above them, as in the Iris.
erose search for term
- a. (L. erodere, to wear away) having small irregular notches in the margin, as if gnawed.
essential flower parts search for term
- the stamen and pistil organs of the flower that are required for pollination.
estuary search for term
- n. (L. aestuarium, part of the seacoast over which the tide ebbs and flows, from aestus, the tide) an inlet or arm of the sea; especially the wide mouth of a river, where the tide meets the current. pl. estuaries.
eutrophic search for term
- a. (Gr. ew, well; trophe, nourishment) the gradual increase in nutrients in a body of water. Natural eutrophication is a gradual process, but human activities may greatly accelerate the process.
eutrophication search for term
- a., the process of becoming eutrophic.
even-pinnate search for term
- said of compound leaves having an even number of leaflets, this is usually easily determined because there is a pair terminally.
excrescence search for term
- n. (L. excrescere, to grow out; ex, out; crescere, to grow) a normal outgrowth; a disfiguring addition.
excurrent search for term
- a. (L. excurrere, to run out, project) projecting beyond the tip, as the midrib of a leaf or bract.
exfoliate search for term
- vt. (L. ex, out; folium, leaf) peeling off in thin layers, shreds, or plates, as the bark of some trees.
exine search for term
- n. (L. ex, out of, out) the outer of two layers forming the wall of certain spores (as pollen grains) - called also exosporium.
exocarp search for term
- n. (Gr. exo, without; karpos, fruit) the outer layer of the wall of a matured ovary.
exotic search for term
- a species introduced to Florida, purposefully or accidentally, from a natural range outside of Florida.
exsert search for term
- vt. (L. exserere, to strech out) to put forth; to thrust out; to protrude.
exserted search for term
- a., sticking out; extending beyond (some enclosing part).
exstipulate search for term
- a. (L. ex, private; stipula, a stalk, stem) having no stem.