Search results
Results from the WOW.Com Content Network
Chamaenerion angustifolium. ( L.) Scop. Chamaenerion angustifolium is a perennial herbaceous flowering plant in the willowherb family Onagraceae. It is known in North America as fireweed and in the British Isles as rosebay willowherb. [ 1] It is also known by the synonyms Chamerion angustifolium and Epilobium angustifolium.
Corythucha elegans, the willow lace bug, is a bug species in the family Tingidae found on willows in North America. Rhabdophaga rosaria is a type of gall found on willows. Rust, caused by fungi of genus Melampsora, is known to damage leaves of willows, covering them with orange spots.
A piece of the stem or root of the source plant is placed in a suitable medium such as moist soil. If the conditions are suitable, the plant piece will begin to grow as a new plant independent of the parent, a process known as striking. A stem cutting produces new roots, and a root cutting produces new stems. Some plants can be grown from leaf ...
Salix alba, the white willow, is a species of willow native to Europe and western and central Asia. [ 2 ] [ 3 ] The name derives from the white tone to the undersides of the leaves. It is a medium to large deciduous tree growing up to 10–30 m tall, with a trunk up to 1 m diameter and an irregular, often-leaning crown.
A line of willow pollards near Sluis, Zeeland, Netherlands. Pollarding is a pruning system involving the removal of the upper branches of a tree, which promotes the growth of a dense head of foliage and branches. In ancient Rome, Propertius mentioned pollarding during the 1st century BCE. [ 1] The practice has occurred commonly in Europe since ...
Itea virginica. L. Itea virginica, commonly known as Virginia willow or Virginia sweetspire, is a small North American flowering shrub that grows in low-lying woods and wetland margins. Virginia willow is a member of the Iteaceae family, and native to the southeast United States. [ 2] Itea virginica has small flowers on pendulous racemes. [ 3]
Auxins were the first of the major plant hormones to be discovered. They derive their name from the Greek word αυξειν ( auxein – "to grow/increase"). Auxin is present in all parts of a plant, although in very different concentrations. The concentration in each position is crucial developmental information, so it is subject to tight ...
Description. Salix nigra is a medium-sized deciduous tree, the largest North American species of willow, growing to 10–30 m (35–100 ft) tall, exceptionally up to 45 m (148 ft), with a trunk 50–80 centimeters (20–30 in) diameter. The bark is dark brown to blackish, becoming fissured in older trees, and frequently forking near the base. [ 3]