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Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (/ ˌ æ n dʒ i ə ˈ s p ər m iː /), [5] [6] commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of broad-leaved trees , shrubs and vines , and most aquatic plants .
Structure of a plant cell. Plant cells are the cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae.Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or ...
The ABC model of flower development is a scientific model of the process by which flowering plants produce a pattern of gene expression in meristems that leads to the appearance of an organ oriented towards sexual reproduction, a flower. There are three physiological developments that must occur in order for this to take place: firstly, the ...
Orchidaceae is one of the two largest families of flowering plants, along with the Asteraceae. It contains about 28,000 currently accepted species distributed across 763 genera. [ 3][ 4] The Orchidaceae family encompasses about 6–11% of all species of seed plants. [ 5] The largest genera are Bulbophyllum (2,000 species), Epidendrum (1,500 ...
Arabidopsis thaliana is an annual (rarely biennial) plant, usually growing to 20–25 cm tall. [ 6 ] The leaves form a rosette at the base of the plant, with a few leaves also on the flowering stem. The basal leaves are green to slightly purplish in color, 1.5–5 cm long, and 2–10 mm broad, with an entire to coarsely serrated margin; the ...
However, more close examinations show that this is instead a liquid flowing directly from water lily flowers that were on the heads of certain gods. [34] It is likely that the Maya ingested these plants to create a non-ordinary state of consciousness, which makes sense because there is a class of opiate alkaloids in Nymphaeaceae. [34]
Evolutionary history of plants. A late Silurian sporangium, artificially colored. Green: A spore tetrad. Blue: A spore bearing a trilete mark – the Y -shaped scar. The spores are about 30–35 μm across. The evolution of plants has resulted in a wide range of complexity, from the earliest algal mats of unicellular archaeplastids evolved ...
Cass. Helianthus ( / ˌhiːliˈænθəs /) [ 3] is a genus comprising about 70 species of annual and perennial flowering plants in the daisy family Asteraceae commonly known as sunflowers. [ 4][ 5] Except for three South American species, the species of Helianthus are native to North America and Central America.