Search results
Results from the WOW.Com Content Network
Esotropia is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. [1] It is the opposite of exotropia and usually involves more severe axis deviation than esophoria. Esotropia is sometimes erroneously called ...
Eye care professionals use prism correction as a component of some eyeglass prescriptions. A lens which includes some amount of prism correction will displace the viewed image horizontally, vertically, or a combination of both directions. The most common application for this is the treatment of strabismus. By moving the image in front of the deviated eye, double vision can be avoided and ...
Stigma (botany) Diagram showing the stigma-style-ovary system of the female reproductive organ of a plant. The stigma is fixed to the apex of the style, a narrow upward extension of the ovary. The stigma ( pl.: stigmas or stigmata) [1] is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower .
These gorgeous low-maintenance container plants will shine on your patio all season long. Plus, get creative container gardening ideas and tips.
Diplopia is the simultaneous perception of two images of a single object that may be displaced horizontally or vertically in relation to each other. [1] Also called double vision, it is a loss of visual focus under regular conditions, and is often voluntary. However, when occurring involuntarily, it results from impaired function of the extraocular muscles, where both eyes are still functional ...
Heterostyly is a unique form of polymorphism and herkogamy in flowers. In a heterostylous species, two or three morphological types of flowers, termed "morphs", exist in the population. On each individual plant, all flowers share the same morph. The flower morphs differ in the lengths of the pistil and stamens, and these traits are not ...
Physiological plant disorders are caused by non- pathological conditions such as poor light, adverse weather, water-logging, phytotoxic compounds or a lack of nutrients, and affect the functioning of the plant system.
Hieracium ( / haɪ.əˈræsiəm / ), [3] known by the common name hawkweed [4] and classically as hierakion (from ancient Greek ιεράξ, hierax ' hawk '), [5] is a genus of flowering plant in the family Asteraceae, and closely related to dandelion ( Taraxacum ), chicory ( Cichorium ), prickly lettuce ( Lactuca) and sow thistle ( Sonchus ...
Ornithogalum umbellatum, the garden star-of-Bethlehem, grass lily, nap-at-noon, or eleven-o'clock lady, a species of the genus Ornithogalum, is a perennial bulbous flowering plant in the asparagus family ( Asparagaceae ). O. umbellatum is a relatively short plant, occurring in tufts of basal linear leaves, producing conspicuous white flowers ...
Sambucus nigra is a species complex of flowering plants in the family Adoxaceae native to most of Europe. [1] Common names include elder, elderberry, black elder, European elder, European elderberry, and European black elderberry. [2] [3] It grows in a variety of conditions including both wet and dry fertile soils, primarily in sunny locations.
