Of the Family 'Asteraceae' or Sunflower Family
The family Asteraceae or, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown.
Of this family, is Artemisia - a large, diverse genus of plants with between 200 and 400 species with common names for various species in the genus include mugwort, wormwood, tarragon, and sagebrush. In plants of the family Asteraceae, what appears to be a single flower is actually a cluster of much smaller flowers. The overall appearance of the cluster, as a single flower, functions in attracting pollinators in the same way as the structure of an individual flower in some other plant families. The older family name, Compositae, comes from the fact that what appears to be a single flower is actually a composite of smaller flowers.
The "petals" or "sunrays" in a sunflower head are actually individual strap-shaped flowers called ray flowers, and the "sun disk" is made of smaller circular shaped individual flowers called disc flowers. The cluster of flowers that may appear to be a single flower, is called a head. The entire head may move tracking the sun, like a "smart" solar panel, which maximizes reflectivity of the whole unit and can thereby attract more pollinators.
The name Asteraceae comes to international scientific vocabulary from New Latin, from Aster, the type genus, + -aceae, a standardized suffix for plant family names in modern taxonomy. The genus name comes from the Classical Latin word aster, "star", which came from Ancient Greek ἀστήρ (astḗr), "star". It refers to the star-like form of the inflorescence. The original name Compositae is still valid under the International Code of Nomenclature for algae, fungi, and plants. It refers to the "composite" nature of the capitula, which consist of a few or many individual flowers. The vernacular name daisy, widely applied to members of this family, is derived from the Old English name of the daisy (Bellis perennis): dæġes ēaġe, meaning "day's eye". This is because the petals open at dawn and close at dusk.
Compositae, the original name for Asteraceae, were first described in 1740 by Dutch botanist Adriaan van Royen. Traditionally, two subfamilies were recognised: Asteroideae (or Tubuliflorae) and Cichorioideae (or Liguliflorae). The latter has been shown to be extensively paraphyletic, and has now been divided into 12 subfamilies, but the former still stands. The study of this family is known as synantherology.
Of this family is the Genus 'Cosmos' whch are from shrubs to herbaceous plants, from perennials to annuals, growing 30cm to 2 meters in height. The leaves range from simple, pinnate, to bipinnate, and are arranged in opposite pairs. The flowers are produced in a capitulum with a ring of broad ray florets and a center of disc florets; flower color is very variable between the different species. The genus 'Cosmos' includes several ornamental plants, along with numerous hybrids and cultivars.
Of this family, is Artemisia - a large, diverse genus of plants with between 200 and 400 species with common names for various species in the genus include mugwort, wormwood, tarragon, and sagebrush. In plants of the family Asteraceae, what appears to be a single flower is actually a cluster of much smaller flowers. The overall appearance of the cluster, as a single flower, functions in attracting pollinators in the same way as the structure of an individual flower in some other plant families. The older family name, Compositae, comes from the fact that what appears to be a single flower is actually a composite of smaller flowers.
The "petals" or "sunrays" in a sunflower head are actually individual strap-shaped flowers called ray flowers, and the "sun disk" is made of smaller circular shaped individual flowers called disc flowers. The cluster of flowers that may appear to be a single flower, is called a head. The entire head may move tracking the sun, like a "smart" solar panel, which maximizes reflectivity of the whole unit and can thereby attract more pollinators.
The name Asteraceae comes to international scientific vocabulary from New Latin, from Aster, the type genus, + -aceae, a standardized suffix for plant family names in modern taxonomy. The genus name comes from the Classical Latin word aster, "star", which came from Ancient Greek ἀστήρ (astḗr), "star". It refers to the star-like form of the inflorescence. The original name Compositae is still valid under the International Code of Nomenclature for algae, fungi, and plants. It refers to the "composite" nature of the capitula, which consist of a few or many individual flowers. The vernacular name daisy, widely applied to members of this family, is derived from the Old English name of the daisy (Bellis perennis): dæġes ēaġe, meaning "day's eye". This is because the petals open at dawn and close at dusk.
Compositae, the original name for Asteraceae, were first described in 1740 by Dutch botanist Adriaan van Royen. Traditionally, two subfamilies were recognised: Asteroideae (or Tubuliflorae) and Cichorioideae (or Liguliflorae). The latter has been shown to be extensively paraphyletic, and has now been divided into 12 subfamilies, but the former still stands. The study of this family is known as synantherology.
Of this family is the Genus 'Cosmos' whch are from shrubs to herbaceous plants, from perennials to annuals, growing 30cm to 2 meters in height. The leaves range from simple, pinnate, to bipinnate, and are arranged in opposite pairs. The flowers are produced in a capitulum with a ring of broad ray florets and a center of disc florets; flower color is very variable between the different species. The genus 'Cosmos' includes several ornamental plants, along with numerous hybrids and cultivars.
'Cosmos' Species include;
|
|
© 2014 Bohemefit for Fuerza International.
No content or information herein may be used elsewhere on social media, without written permission,
yet alone be out of context and or for content on other social media sites.
No content or information herein may be used elsewhere on social media, without written permission,
yet alone be out of context and or for content on other social media sites.