Definition of Helianthus laetiflorus

1. Noun. Tall rough-leaved perennial with a few large flower heads; central United States.

Exact synonyms: Showy Sunflower
Generic synonyms: Helianthus, Sunflower

Helianthus Laetiflorus Pictures

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Lexicographical Neighbors of Helianthus Laetiflorus

Helenium autumnale
Helenium hoopesii
Helenium puberulum
Helianthemum canadense
Helianthemum scoparium
Helianthus angustifolius
Helianthus annuus
Helianthus giganteus
Helianthus laetiflorus
Helianthus maximilianii
Helianthus petiolaris
Helianthus tuberosus
Helichrysum bracteatum
Helichrysum secundiflorum
Helicteres isora
Helie's bundle
Heliobacter pylori

Literary usage of Helianthus laetiflorus

Below you will find example usage of this term as found in modern and/or classical literature:

1. An Illustrated Flora of the Northern United States: Canada and the British by Nathaniel Lord Britton, Addison Brown (1898)
"1842. Leaves thick, very rough on both sides; heads larger; involucral bracts more spreading. Nebraska to Arkansas. 20. helianthus laetiflorus Pers. ..."

2. The Vascular Flora of Pennsylvania: Annotated Checklist and Atlas by Ann Fowler Rhoads, William M. Klein (1993)
"helianthus laetiflorus Pers. Showy sunflower Herbaceous perennial Old fields and stream banks. Considered by some to be a hybrid of H and H. tuberosus. ..."

3. The American Botanist edited by Willard Nelson Clute (1907)
"helianthus laetiflorus. A tall slender species with few branches, bearing at top a cluster of very large flowers. Leaves ovate-lanceolate and flowers very ..."

4. Useful wild plants of the United States and Canada by Charles Francis Saunders (1920)
"Mr. WN Clute, in "The American Botanist," February, 1918, noted that the prairie species, helianthus laetiflorus, Pers., also bears tubers, which are little ..."

5. Sessional Papers by Ontario Legislative Assembly (1899)
"... helianthus laetiflorus, and Hibiscus moscheutos. Though perennials thrive best when given good soil and good cultivation, a large number of them will ..."

6. Journal of Mycology by William Ashbrook Kellerman, Job Bicknell Ellis, Benjamin Matlack Everhart (1905)
"... from helianthus laetiflorus, H. mollis, and H. grosse-serratus on 15 species of Helianthus. Arthur.] Jour. Mycol. 11:53-4- Mar. 1905. ..."

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