Search results
Results from the WOW.Com Content Network
Veronica hederifolia, the ivy-leaved speedwell, [1] is a flowering plant belonging to the family Plantaginaceae. It is native to Europe, western Asia and north Africa [2] and it is present in other places as an introduced species and a common weed. Solitary blue flowers occur in leaf axils, each with a corolla up to one centimetre (0.4 in) wide.
Hedera helix, the common ivy, European ivy, King's Choice ivy, or just ivy, is a species of flowering plant in the family Araliaceae. It is native to most of Europe and parts of western Asia. Ivy is a clinging evergreen vine that grows on tree trunks, walls, and fences in gardens, waste spaces, and wild habitats. Ivy is popular as an ornamental ...
Urushiol / ʊ ˈ r uː ʃ i. ɒ l / is an oily mixture of organic compounds with allergenic properties found in plants of the family Anacardiaceae, especially Toxicodendron spp. (e.g., poison oak, Chinese lacquer tree, poison ivy, poison sumac), Comocladia spp. (maidenplums), Metopium spp.
Hedera helix adult leaves and unripe berries in Ayrshire, Scotland. On level ground ivies remain creeping, not exceeding 5–20 cm height, but on surfaces suitable for climbing, including trees, natural rock outcrops or man-made structures such as quarry rock faces or built masonry and wooden structures, they can climb to at least 30 m above the ground.
It is a deciduous woody vine growing to 30 m tall or more given suitable support, attaching itself by means of numerous small branched tendrils tipped with sticky disks. The leaves are simple, palmately lobed with three lobes, occasionally unlobed or with five lobes, or sufficiently deeply lobed to be palmately compound with (usually) three leaflets; the leaves range from 5 to 22 cm across.
Chromolaena ivifolia called ivy-leaf false thoroughwort, [4] or ivyleaf thoroughwort, [5] is a species of flowering shrub in the family Asteraceae. It is native to North America and South America, from the south-eastern United States (eastern Texas , Louisiana , southern Mississippi , southern Alabama , and Florida ) to Argentina.
However, this comes at a price: while stomata are open to allow CO 2 to enter, water can evaporate. [33] Water is lost much faster than CO 2 is absorbed, so plants need to replace it, and have developed systems to transport water from the moist soil to the site of photosynthesis. [ 33 ]
The flowers growing from the leaf axils are bell-shaped and just over a centimeter long. They are yellow with five brown smudges in the throats. The five-lobed calyx of sepals at the base of the flower enlarges as the fruit develops, becoming an inflated, veined nearly spherical structure 2 or 3 centimeters long which contains the berry .