Definitions for helianthus
he·lianthus

Princeton's WordNetRate this definition:0.0 / 0 votes

1. sunflower, helianthusnoun

   any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays

WiktionaryRate this definition:0.0 / 0 votes

1. helianthusnoun

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

WikipediaRate this definition:0.0 / 0 votes

1. Helianthus

   Helianthus () is a genus comprising about 70 species of annual and perennial flowering plants in the daisy family Asteraceae commonly known as sunflowers. Except for three South American species, the species of Helianthus are native to North America and Central America. The best-known species is the common sunflower (Helianthus annuus), whose round flower heads in combination with the ligules look like the Sun. This and other species, notably Jerusalem artichoke (H. tuberosus), are cultivated in temperate regions and some tropical regions, as food crops for humans, cattle, and poultry, and as ornamental plants. The species H. annuus typically grows during the summer and into early fall, with the peak growth season being mid-summer.Several perennial Helianthus species are grown in gardens, but have a tendency to spread rapidly and can become aggressive. On the other hand, the whorled sunflower, Helianthus verticillatus, was listed as an endangered species in 2014 when the U.S. Fish and Wildlife Service issued a final rule protecting it under the Endangered Species Act. The primary threats are industrial forestry and pine plantations in Alabama, Georgia, and Tennessee. They grow to 1.8 metres (6 feet) and are primarily found in woodlands, adjacent to creeks and moist, prairie-like areas.The common sunflower is the national flower of Ukraine, cultivated there for several centuries.

ChatGPTRate this definition:0.0 / 0 votes

1. helianthus

   Helianthus is the scientific genus name for a group of plants commonly known as sunflowers, primarily known for their characteristics such as bright yellow petals and large, round seed heads. These plants are native to the Americas and are often cultivated for their beauty and edible seeds. Some species are also used to produce sunflower oil, which is used in cooking and manufacturing.

WikidataRate this definition:0.0 / 0 votes

1. Helianthus

   Helianthus L. is a genus of plants comprising 52 species in the Asteraceae family, all of which are native to North America. The common name "sunflower" also applies to the popular annual species Helianthus annuus. This and other species, notably Jerusalem artichoke, are cultivated in temperate regions as food crops and ornamental plants. The genus is one of many in the Asteraceae that are known as sunflowers. It is distinguished technically by the fact that the ray flowers, when present, are sterile, and by the presence on the disk flowers of a pappus that is of two awn-like scales that are cauducous. Some species also have additional shorter scales in the pappus, and there is one species that lacks a pappus entirely. Another technical feature that distinguishes the genus more reliably, but requires a microscope to see, is the presence of a prominent, multicellular appendage at the apex of the style. There is quite a bit of variability among the perennial species that make up the bulk of the species in the genus. Some have most or all of the leaves in a rosette at the base of the plant and produce a flowering stem that has leaves that are reduced in size. Most of the perennials have disk flowers that are entirely yellow, but a few have disk flowers with reddish lobes. One species, H. radula, lacks ray flowers altogether.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Helianthus

   hē-li-an′thus, n. a genus of order Compositae, including the common sunflower. [Gr. hēlios, the sun, anthos, a flower.]

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Helianthus

   A genus of tall, erect American herbs of the Compositae. The seeds yield oil and are used as food and animal feed; the roots of Helianthus tuberosum (Jerusalem artichoke) are edible.

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1. • Flower

How to pronounce helianthus?

1. Alex

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   Mark

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   Daniel

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   Libby

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How to say helianthus in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of helianthus in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of helianthus in Pythagorean Numerology is: 9

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=helianthus
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Helianthus
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Helianthus
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=helianthus
6. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=helianthus