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Epilobium hirsutum seed head dispersing seeds. In spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. [1] Plants have limited mobility and rely upon a variety of dispersal vectors to transport their seeds, including both abiotic vectors, such as the wind, and living vectors such as birds.
The seeds are shiny brown. The seed is used as bird food and is generally mixed with rapeseed and other seeds that cheapen it. It should be kept in a dry place and away from vermin. Industrially, a flour made from seed is employed in the manufacture of fine cotton goods and silk stuffs.
Crotalaria cunninghamii - this form has distinctive green flowers in axillary clusters.. Crotalaria cunninghamii, also known as green bird flower, bird flower ratulpo, parrot pea, or regal bird flower, is a plant of the legume family Fabaceae, [1] named Crotalaria after the Greek word for rattle because their seeds rattle, and cunninghamii after early 19th-century botanist Allan Cunningham.
Also known as giant bird-of-paradise plants, these larger types look more like trees and can reach up to 30 feet tall when grown in USDA Plant Hardiness Zones 9B through 11, according to the ...
Seeds can be difficult to acquire, and some plants do not produce seed at all. Some plants (like certain [4] plants modified using genetic use restriction technology) may produce seed, but not a fertile seed. [5] In certain cases, this is done to prevent the accidental spreading of these plants, for example by birds and other animals. [6]
The amount of light is vital for growth, as well as the plant relying on sunlight for adequate flower production. Some specimens can grow in excess of 20 feet high by 10 feet across. Propagation is done via division of clumps, by cuttings of offsets; less often from seed. Plants require many years of growth before they begin blooming. [6]
Frugivore seed dispersal is a common phenomenon in many ecosystems. However, it is not a highly specific type of plant–animal interaction. For example, a single species of frugivorous bird may disperse fruits from several species of plants, or a few species of bird may disperse seeds of one plant species. [3]
Barochory is seed dispersal by gravity alone in which a plant's seeds fall beneath the parent plant. [8] These seeds commonly have heavy seed dispersal syndromes. [13] However, heavy seeds may not be a form of seed dispersal syndrome, but a random seed characteristic that has no dispersal purpose.