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Heliotropism, a form of tropism, is the diurnal or seasonal motion of plant parts (flowers or leaves) in response to the direction of the Sun. The habit of some plants to move in the direction of the Sun, a form of tropism, was already known by the Ancient Greeks. They named one of those plants after that property Heliotropium, meaning "sun turn".
There is a myth that Judas Iscariot hanged himself from a tree of this species, causing its white flowers to turn red. [10] This belief is related to the common name "Judas tree", which is possibly a corrupted derivation from the French common name, Arbre de Judée , meaning tree of Judea , referring to the hilly regions of that country where ...
A plant cutting is a piece of a plant that is used in horticulture for vegetative (asexual) propagation. 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.
Epicuticular wax is a waxy coating which covers the outer surface of the plant cuticle in land plants. It may form a whitish film or bloom on leaves, fruits and other plant organs. Chemically, it consists of hydrophobic organic compounds, mainly straight-chain aliphatic hydrocarbons with or without a variety of substituted functional groups ...
In most such species, the tumbleweed is in effect the entire plant apart from the root system, but in other plants, a hollow fruit or inflorescence might detach instead. [1] Xerophyte tumbleweed species occur most commonly in steppe and arid ecosystems , where frequent wind and the open environment permit rolling without prohibitive obstruction.
A flower, also known as a bloom or blossom, [1] is the reproductive structure found in flowering plants (plants of the division Angiospermae). Flowers consist of a combination of vegetative organs – sepals that enclose and protect the developing flower.
Trees can live for over 100 years, with 40-year-old trees achieving a trunk circumference of 2.7 m (9 ft) in cultivation. [ 12 ] The flowers serve as a rich source of nectar for other organisms, including fruit bats, a wide range of insect and bird species, [ 7 ] such as the scaly-breasted lorikeet ( Trichoglossus chlorolepidotus ).
Now the plant can absorb more light. When the sun dries the plants, they turn white. Thanks to this special survival trick, plants without roots can absorb fog droplets as well as rainwater and thus cover their water needs. [18] More than one-third of a tropical forest's vascular plants are epiphytes which species of Tillandsia are part of.