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Helianthus
Sunflower (Helianthus annuus)
Sunflower (Helianthus annuus)
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Subfamily: Helianthoideae
Tribe: Heliantheae
Genus: Helianthus
L.
Species

See text. Plants are living Organisms belonging to the kingdom Plantae. The flowering plants or angiosperms ( Angiospermae or Magnoliophyta) are the most widespread group Magnoliopsida is the Botanical name for a class of Flowering plants By definition the class will include the family Magnoliaceae, but its The Asterales are an order of Dicotyledonous Flowering plants which include the composite family Asteraceae ( Sunflowers daisies The family Asteraceae or Compositae (known as the aster, daisy, or sunflower family) is the largest family of Flowering The tribe Heliantheae is the most familiar tribe of the Sunflower family ( Asteraceae) Carl Linnaeus (Latinized as Carolus Linnaeus, also known after his ennoblement as, May 23 new style (13 May old style 1707 who laid the foundations for

The Helianthus L. genus comprises 67 species and several subspecies in the Asteraceae family, all of which are native to North America, with some species (particularly Helianthus annuus (sunflower) and Helianthus tuberosus (Jerusalem artichoke)) cultivated in Europe and other parts of the world as food crops and ornamental plants. Carl Linnaeus (Latinized as Carolus Linnaeus, also known after his ennoblement as, May 23 new style (13 May old style 1707 who laid the foundations for A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic The family Asteraceae or Compositae (known as the aster, daisy, or sunflower family) is the largest family of Flowering The sunflower ( Helianthus annuus) is an Annual plant in the family Asteraceae and native to the Americas, with a large flowering The Jerusalem artichoke ( Helianthus tuberosus) also called the sunroot or sunchoke or earth apple or topinambur, is a species

These are usually tall, annual or perennial plants, growing to a height of 50-390 cm. Botanically an annual plant is a Plant that usually germinates, Flowers and dies in one Year. A perennial plant or perennial ( Latin per, "through" annus, "year" is a Plant that lives for more than The rough and hairy stem is branched in the upper part. A stem is one of two main structural axes of a Vascular plant. The petiolate leaves are dentate and often sticky. In Botany, a leaf is an above-ground Plant organ specialized for Photosynthesis. The lower leaves are opposite, ovate or often heart-shaped. The upper leaves are alternate and narrower.

They bear several to many wide, terminal capitula (flower heads), with bright yellow ray florets at the outside and maroon disc florets inside. These flower heads follow the direction of the sun, going from east to west during the day. The Sun (Sol is the Star at the center of the Solar System.

Helianthus species are used as food plants by the larvae of some Lepidoptera species - see list of Lepidoptera that feed on Helianthus. A larva ( Latin; plural larvae) is a juvenile form of Animal with indirect development, undergoing Metamorphosis (for example Lepidoptera is an order of Insect that includes Moths and butterflies. Helianthus species are used as food plants by the Larvae of a number of Lepidoptera species including Monophagous

Species

Prairie Sunflower (Helianthus petiolaris)
Prairie Sunflower (Helianthus petiolaris)
Willowleaf Sunflower (Helianthus salicifolius)
Willowleaf Sunflower (Helianthus salicifolius)

External links

The Jerusalem artichoke ( Helianthus tuberosus) also called the sunroot or sunchoke or earth apple or topinambur, is a species

Dictionary

helianthus

-noun

  1. Any plant, of the genus Helianthus, having large flower heads with dark disk florets and showy yellow rays; the sunflowers
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