HOARY CRESS Meaning and
Definition
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Hoary cress, sometimes referred to as white top, is a perennial herbaceous plant that belongs to the mustard family Brassicaceae. Its scientific name is Lepidium draba. Hoary cress is native to Eurasia but has been introduced to many parts of North America, where it is considered an invasive species.
This plant typically grows up to 1 meter in height and has deeply lobed, toothed leaves that are somewhat hairy or grayish-green in appearance, giving it a hoary or white-haired look. It produces small, white flowers that are arranged in clusters and has a deep taproot system.
Hoary cress is known for its aggressive growth and ability to quickly spread and establish in various habitats, including fields, pastures, roadsides, and disturbed areas. It can outcompete native plants, reducing biodiversity and impacting the ecological balance of an area.
The control and eradication of hoary cress can be challenging due to its extensive root system and prolific seed production. Control measures often involve a combination of cultural, mechanical, and chemical methods.
In some regions, hoary cress poses a threat to agriculture as it can reduce crop yields and contaminate forage. It is listed as a noxious weed in several states and countries, leading to efforts to manage its spread and limit its impact on ecosystems and agricultural activities.
Etymology of HOARY CRESS
The word "hoary" in "hoary cress" comes from the Old English word "hār" which means gray or grey-haired. The term "hoary" is used to describe things that are gray or whitish in appearance, often due to age or a covering of fine white hair.
The word "cress" in "hoary cress" comes from the Old English word "cresse" referring to a type of salad plant. "Cress" itself has its roots in the Latin word "crescere" meaning to grow, as cress is known for its fast growth.
Therefore, "hoary cress" essentially refers to a gray or whitish plant (hoary) that belongs to the cress family, known for its rapid growth.
