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Plectranthus oertendahlii is a species of flowering plant in the sage and mint family, Lamiaceae.Common names include silverleaf spurflower, Swedish ivy, Oertendahl's spurflower, November lights [2] and Brazilian coleus, [3] though it is native to eastern South Africa rather than Brazil.
Plectranthus verticillatus is native to southern Africa where it occurs in the Cape Provinces, KwaZulu-Natal, Eswatini, the Northern Provinces and southern Mozambique. [7] It is found naturalized in El Salvador, Honduras, the Leeward Islands, the Venezuela Antilles, the Windward Islands, Venezuela, Puerto Rico, Hawaii as well as south-east Queensland and coastal areas of New South Wales in ...
While these plants are relatively low maintenance, it’s not unusual for peace lily leaves to turn yellow here and there due to stress, pests, or other issues. This guide explains the most common ...
The most obvious symptom of this disease is the yellowing of leaves before they drop in the early spring. Infected leaves are filled with numerous black lesions that cover an obvious portion of the leaf. [5] These lesions first appear as small purple spots which turn red to brown and then black.
Annual autumn leaf drop in temperate zones is caused by the abscission of the mature leaves from the growth season in response to the approach of cold winter weather. Abscission (from Latin ab- 'away' and scindere 'to cut') is the shedding of various parts of an organism, such as a plant dropping a leaf, fruit, flower, or seed.
It is distinguished from other water crowfoots by a lack of submerged capillary leaves, all leaves being shiny, ivy shaped with 3-5 shallow lobes, broadest at the base and sometimes darker in the centre. Ivy-leaved crowfoot grows in mineral waters whereas the similar-looking round-leaved crowfoot is "invariably" found in more peaty waters.
Deciduous trees experience much less branch and trunk breakage from glaze ice storms when leafless, and plants can reduce water loss due to the reduction in availability of liquid water during cold winter days. [16] Losing leaves in winter may reduce damage from insects; repairing leaves and keeping them functional may be more costly than just ...
For example, in tropical alpine environments a wide variety of plants in different plant families and different parts of the world have evolved a growth form known as the caulescent rosette, characterized by evergreen rosettes growing above marcescent leaves. Examples of plants for which the marcescent leaves have been confirmed to improve ...