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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.
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 ...
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.
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 ...
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 ...
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]
Salix planifolia is a shrub varying in size from low and bushy, to long thickets, to a treelike form 9 m (30 ft) in height. The leaves are generally oval in shape with pointed tips, measuring up to 6.5 cm long. They are smooth-edged or serrated, glossy on the upper surface, and sometimes with silky hairs.