Angiosperm | Definition, Reproduction, Examples, Characteristics, …
2024年10月22日 · Angiosperm, any of about 300,000 species of flowering plants, the largest and most diverse group in the plant kingdom. Angiosperms are vascular seed plants in which the …
Flower | Definition, Parts, Anatomy, Types,& Facts | Britannica
Flower, the characteristic reproductive structure of angiosperms. Flowers facilitate the reproduction of angiosperm species through the production of seed and the formation of fruit. …
Definition, Process, Types, Agents Of, & Facts - Britannica
As sedentary organisms, plants usually must enlist the services of external agents for pollen transport. In flowering plants, these are (roughly in order of diminishing importance) insects, …
Flowering Plants Portal | Britannica
Angiosperm, any of about 300,000 species of flowering plants, the largest and most diverse group within the kingdom Plantae. Angiosperms represent approximately 80 percent of all the known …
Plant reproductive system | Definition, Types, Examples, & Facts ...
In this category belong such flowering-plant structures as stolons, rhizomes, tubers, corms, and bulbs, as well as the tubers of liverworts, ferns, and horsetails, the dormant buds of certain …
Cross-pollination | Definition, Plants, Mechanism, & Facts | Britannica
2024年10月3日 · Cross-pollination is a type of pollination in which sperm-laden pollen grains are transferred from the cones or flowers of one plant to the egg-bearing cones or flowers of …
Fruit | Definition, Description, Types, Examples, & Facts | Britannica
2024年10月7日 · In a botanical sense, a fruit is the fleshy or dry ripened ovary of a flowering plant, enclosing the seed or seeds. Apricots, bananas, and grapes, as well as bean pods, corn …
Horticulture | Definition, Types, Techniques, & Uses | Britannica
Floriculture deals with the production of flowers and ornamental plants; generally, cut flowers, pot plants, and greenery. Landscape horticulture is a broad category that includes plants for the …
Rose | Description, Species, Images, & Facts | Britannica
2024年10月25日 · A rose is a plant that is a member of the genus Rosa, which consists of some 100 species of perennial shrubs in the rose family. Many roses are cultivated for their beautiful …
Botany | Definition, History, Branches, & Facts | Britannica
2024年9月30日 · The discovery of the pigment phytochrome, which constitutes a previously unknown light-detecting system in plants, has greatly increased knowledge of the influence of …