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A plant which completes its life cycle (i.e. germinates, reproduces, and dies) within two years or growing seasons. Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid Forked; cut in two for about half its length. Compare trifid. bifoliate
Ceiba speciosa, the floss silk tree (formerly Chorisia speciosa), is a species of deciduous tree that is native to the tropical and subtropical forests of South America.It has several local common names, such as palo borracho (in Spanish literally "drunken stick"), or árbol del puente, samu'ũ (in Guarani), or paineira (in Brazilian Portuguese).
Cerbera odollam is a tree species in the family Apocynaceae commonly known as the suicide tree or pong-pong. [1] It bears a fruit known as othalanga whose seeds yield a potent poison called cerberin that has been used for trials by ordeal , [ 2 ] suicide, and poisonings.
Parkia timoriana is a species of flowering plant in the legume family. English common names include tree bean. [2] [3] [4] It is native to Thailand, Malaysia, Myanmar, Indonesia, and Assam and Manipur in India. It is widely cultivated for food and wood, [5] and as an ornamental. [6] The tree is vulnerable to the pest insect Cadra cautella, a moth.
Ajwain or ajowan (Trachyspermum ammi) [3] (/ ˈ æ dʒ ə w ɒ n /) —also known as ajowan caraway, thymol seeds, bishop's weed, or carom—is an annual herb in the family Apiaceae. [4] Both the leaves and the seed ‑like fruit (often mistakenly called seeds) of the plant are consumed by humans.
(pl.) aboiteaux A sluice or conduit built beneath a coastal dike, with a hinged gate or a one-way valve that closes during high tide, preventing salt water from flowing into the sluice and flooding the land behind the dike, but remains open during low tide, allowing fresh water precipitation and irrigation runoff to drain from the land into the sea; or a method of land reclamation which relies ...
Parkia biglobosa, the African locust bean, [3] is a perennial deciduous tree in the family Fabaceae. It is found in a wide range of environments in Africa and is primarily grown for its pods that contain both a sweet pulp and valuable seeds. Where the tree is grown, the crushing and fermenting of these seeds constitutes an important economic ...
Some plants will even reduce the germination rate of other plants by 50%. [33] Current research is focused on the effects of weeds on crops, crops on weeds, and crops on crops. [ 38 ] [ 39 ] This research furthers the possibility of using allelochemicals as growth regulators and natural herbicides , to promote sustainable agriculture. [ 40 ]