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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 ...
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 ...
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 .
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]
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 ...
Harpalium (Cass.) 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.
Photoperiodism is the physiological reaction of organisms to the length of light or a dark period. It occurs in plants and animals. Plant photoperiodism can also be defined as the developmental responses of plants to the relative lengths of light and dark periods. They are classified under three groups according to the photoperiods: short-day ...
Amaryllis belladonna flowers. Amaryllis is a bulbous plant, with each bulb being 5–10 cm (2.0–3.9 in) in diameter. It has several strap-shaped, hysteranthous, green leaves with midrib, 30–50 cm (12–20 in) long and 2–3 cm (0.79–1.18 in) broad, arranged in two rows. Each bulb produces one or two leafless, stout, persistent and erect ...