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Autumn leaf color is a phenomenon that affects the normally green leaves of many deciduous trees and shrubs by which they take on, during a few weeks in the autumn season, various shades of yellow, orange, red, purple, and brown. [ 1] The phenomenon is commonly called autumn colours[ 2] or autumn foliage[ 3] in British English and fall colors ...
The plant grows well in bright light, but also tolerates partial shade at room temperatures from 12 °C through 25 °C. A plant's leaves may turn yellow and fall when days are shorter in autumn which is not a sign of disease, and the plant will restart its growth without problem the following spring. A tree is mature when 4–5 years old.
Being one of the more visible features, leaf shape is commonly used for plant identification. Similar terms are used for other plant parts, such as petals, tepals, and bracts. Oddly pinnate, pinnatifid leaves (Coriandrum sativum, coriander or cilantro) Partial chlorosis revealing palmate venation in simple leaves of Hibiscus mutabilis
The spots, which may be as much as 12 mm across, are generally circular and have an irregular edge often with a yellow halo. Leaves frequently turn yellow and fall early. Sometimes new leaves are produced, and these may also become affected. Continual defoliation will cause weakness, dieback or death of the plant. Some very susceptible species ...
In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes ), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory .
A new study has found how a rose and other plants like a tomato and eggplant came to get their prickles. The discovery could help engineer new thorn-free variants.
In the fields of horticulture and botany, the term deciduous ( / dɪˈsɪdʒu.əs /) [ 1][ 2] means "falling off at maturity" [ 3] and "tending to fall off", [ 4] in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit.
Taxodium distichum is a large, slow-growing, and long-lived tree. It typically grows to heights of 35–120 feet (10–40 m) and has a trunk diameter of 3–7 feet (0.9–2.1 m). [ 11][ 12] The main trunk is often surrounded by cypress knees.