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The margins are usually entire or toothed, and are rounded at the base. The texture of the leaves is leathery and stiff. The veins are parallel, and are sunken on the upperside and raised underneath. Leaves may begin to shed in late winter, or when new leaves emerge in spring. [7] Fruit: oblong acorn that is 1 ⁄ 2 to 1 in long. Acorns have ...
Temnothorax curvispinosus, the acorn ant, is a species of ant in the genus Temnothorax. [1] The species is common and widely distributed in eastern United States, where they tend to inhabit forested areas. The ground-dwelling ants build their nests in plant cavities, in the soil or under rocks. [2]
an abscission scar on the trunk of Castilla where a branch has been shed. Cladoptosis (Ancient Greek κλάδος kládos "branch", πτῶσις ptôsis "falling" [noun]; sometimes pronounced with the p silent) is the regular shedding of branches. [1] It is the counterpart for branches of the familiar process of regular leaf shedding by ...
Abscission (from Latin ab- 'away' and scindere 'to cut') is the shedding of various parts of an organism, such as a plant dropping a leaf, fruit, flower, or seed. In zoology , abscission is the intentional shedding of a body part, such as the shedding of a claw , husk, or the autotomy of a tail to evade a predator.
Some experimentation on plant litter from marcescent trees indicates that keeping the leaves above ground may increase the amount of photodegradation the leaves are exposed to. Because some marcescent species' leaves do not decompose well, the increased photodegradation may allow them to decompose better once they finally fall off the tree.
Plant embryonic development, also plant embryogenesis, is a process that occurs after the fertilization of an ovule to produce a fully developed plant embryo. This is a pertinent stage in the plant life cycle that is followed by dormancy and germination . [ 1 ]
Non-vascular plants , with their different evolutionary background, tend to have separate terminology. Although plant morphology (the external form) is integrated with plant anatomy (the internal form), the former became the basis of the taxonomic description of plants that exists today, due to the few tools required to observe. [2] [3]
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