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Sunny yellow, warm cinnamon, pastel pink, royal purple, rusty red—these are just a few of the available colors of chrysanthemums. Once those colorful blooms begin to fade, though, most gardeners ...
This particular type of chrysanthemum is noted to be affected by black plight. [20] In addition, in Korea and other Asian countries, C. lavandulifolium has contracted a downy mildew infection caused by Paraperonospora minor. The fungi-like agents grow on leaves and turn them a yellowish color, and the plant eventually wilts until it dies out.
Heliotropism, a form of tropism, is the diurnal or seasonal motion of plant parts (flowers or leaves) in response to the direction of the Sun. The habit of some plants to move in the direction of the Sun, a form of tropism, was already known by the Ancient Greeks. They named one of those plants after that property Heliotropium, meaning "sun turn".
A leafy herb, the garland chrysanthemum is an annual plant. It has yellow ray florets grouped in small flower heads and aromatic, bipinnately lobed leaves. Its seeds are ribbed and winged cypselae. [9] The vegetable grows very well in mild or slightly cold climates, but will go quickly into premature flowering in warm summer conditions.
Their foliage may be deciduous, turning bright orange, red, and yellow before dropping off in the fall, or evergreen, in which case it stays green year-round. Some ornamental foliage has a striking appearance created by lacy leaves or long needles, while other ornamentals are grown for distinctively colored leaves, such as silvery-gray ground ...
Puccinia horiana is a microcyclic, autoecious rust, meaning that the fungus has two known spore stages: teliospores and basidiospores, as well as no known alternate host. [6] Similar to other microcyclic rusts, two-celled teliospores produce unicellular basidiospores which are then dispersed via air currents.
Full bloom flowers of Chrysanthemum indicum in West Bengal, India. Chrysanthemum indicum is a plant of the temperate zone but it can be grown successfully outside the area such as in tropical areas as it is often cultivated in Southeast Asia with moist soil (pH around 6.5) in sunny weather. It can handle temperatures down to −10 °C (14 °F).