Ageratum
Ageratum
Ageratum (pronounced: /əˈdʒɛrətəm/), also known as Flossflower, is a genus of 40 to 60 tropical and warm temperate flowering annuals and perennials from the family Asteraceae, native to Central America, Mexico, and the United States. The name Ageratum is derived from the Greek ageratos meaning 'ageless', in reference to the longevity of the flowers.
Description
Ageratum plants are characterized by their compact, bushy growth and their small, fluffy, blue, pink, or white flowers. The leaves are opposite, cordate, and downy. The flowers are borne in dense corymbs. The ray flowers are threadlike and fluff-textured, leading to the common name, Flossflower.
Cultivation and Uses
Ageratum is commonly grown in gardens for its attractive flowers and beneficial properties. It is often used in butterfly gardens, as it is a favorite nectar source for many species of butterflies. Some species of Ageratum are also used in traditional medicine for their supposed healing properties.
Species
There are several species of Ageratum, including Ageratum houstonianum, Ageratum conyzoides, and Ageratum littorale. Ageratum houstonianum, also known as Flossflower, is the most commonly cultivated species and is often used in bedding.
Etymology
The genus name Ageratum is derived from the Greek ageratos or 'ageless', which refers to the long-lasting nature of the flowers. The specific epithet houstonianum is in honor of William Houston, a Scottish surgeon and botanist.
Related Terms
- Asteraceae: The family to which Ageratum belongs.
- Ageratum houstonianum: The most commonly cultivated species of Ageratum.
- Ageratum conyzoides: A species of Ageratum used in traditional medicine.
- Ageratum littorale: A coastal species of Ageratum.
External links
- Medical encyclopedia article on Ageratum
- Wikipedia's article - Ageratum
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