Helianthus porteri - Unknown
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Internal ID UUID643fc902065c1576535621
Scientific name Helianthus porteri
Authority (A.Gray) Pruski
First published in Castanea 63(1): 75 (1998): (1998)

Description Top

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Helianthus porteri, also known as Porter's sunflower, Stone Mountain daisy, and Confederate daisy, is a species of sunflower found in the southeastern United States. Despite its common names, it is actually a type of sunflower rather than a daisy. The plant was named in 1849 by Harvard botanist Asa Gray in honor of Thomas Conrad Porter, a minister and botanist who collected it in Georgia. It was later renamed Helianthus porteri by John F. Pruski in 1998. This sunflower is native to states like Alabama and Georgia, but has also been introduced to North Carolina where it can be found in granite outcrop areas. It typically grows on thin soils around flat rock granite and gneiss outcrops and can reach up to 100 cm in height. Each plant produces multiple flower heads with yellow ray and disc florets. Despite its connection to the Confederacy through its presence on Stone Mountain, its name is more closely related to its botanical history.

Synonyms Top

Scientific name Authority First published in
Rudbeckia porteri A.Gray Mem. Amer. Acad. Arts , ser. 2, 4(1): 83 (1849)
Helianthus porteri (A.Gray) Heiser Monogr. Indiana Acad. Sci. 88: 371 (1979), without direct ref. to place of publ.; cf. Gray Herb. Card Cat.:.
Gymnolomia porteri (A.Gray) A.Gray Proc. Amer. Acad. Arts 12: 59 (1876)
Viguiera porteri S.F.Blake Contr. Gray Herb. 54: 114 (1918)
Heliomeris porteri Cockerell Torreya 18: 183 (1918)

Common names Top

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Language Common/alternative name
English porter's sunflower

Subspecies (abbr. subsp./ssp.) Top

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Varieties (abbr. var.) Top

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Germination/Propagation Top

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Distribution (via POWO/KEW) Top

Legend for the distribution data:
- Doubtful data
- Extinct
- Introduced
- Native
  • Northern America
    • Southeastern U.S.A.
      • Alabama
      • Georgia
      • North Carolina
      • South Carolina

Links to other databases Top

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Database ID/link to page
World Flora Online wfo-0000026957
Flora of Alabama 1059
USDA Plants HEPO3
Tropicos 50113660
KEW urn:lsid:ipni.org:names:1000702-1
The Plant List gcc-126051
Open Tree Of Life 417264
NCBI Taxonomy 73305
Nature Serve 2.130723
IPNI 1000702-1
iNaturalist 163625
GBIF 3119169
EOL 491628
USDA GRIN 104319
Wikipedia Helianthus_porteri

Genomes (via NCBI) Top

No reference genome is available on NCBI yet. We are constantly monitoring for new data.

Scientific Literature Top

Below are displayed the latest 15 articles published in PMC (PubMed Central®) and other sources (DOI number only)!
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Title Authors Publication Released IDs
An empirical assessment of a single family‐wide hybrid capture locus set at multiple evolutionary timescales in Asteraceae Jones KE, Fér T, Schmickl RE, Dikow RB, Funk VA, Herrando‐Moraira S, Johnston PR, Kilian N, Siniscalchi CM, Susanna A, Slovák M, Thapa R, Watson LE, Mandel JR Appl Plant Sci 25-Oct-2019
PMCID:PMC6814182
doi:10.1002/aps3.11295
PMID:31667023
Diterpenes from Viguiera porteri Werner Herz, Palaniappan Kulanthaivel American Chemical Society (ACS) 30-May-2007
doi:10.1021/NP50040A039

Phytochemical Profile Top

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Below are displayed the proven (via scientific papers) natural compounds!
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Name PubChem ID Canonical SMILES MW Found in Proof
> Lipids and lipid-like molecules / Fatty Acyls / Fatty acids and conjugates / Long-chain fatty acids
Stearic Acid 5281 Click to see CCCCCCCCCCCCCCCCCC(=O)O 284.50 unknown https://doi.org/10.1021/NP50040A039
> Lipids and lipid-like molecules / Fatty Acyls / Lineolic acids and derivatives
Elaidolinolenic acid 5282822 Click to see CCC=CCC=CCC=CCCCCCCCC(=O)O 278.40 unknown https://doi.org/10.1021/NP50040A039
Linoleic Acid 5280450 Click to see CCCCCC=CCC=CCCCCCCCC(=O)O 280.40 unknown https://doi.org/10.1021/NP50040A039
Linolenic Acid 5280934 Click to see CCC=CCC=CCC=CCCCCCCCC(=O)O 278.40 unknown https://doi.org/10.1021/NP50040A039
> Lipids and lipid-like molecules / Prenol lipids / Diterpenoids / Kaurane diterpenoids
(5R,9S,13S)-5,9-dimethyl-14-methylidenetetracyclo[11.2.1.01,10.04,9]hexadecane-5-carboxylic acid 49775756 Click to see CC12CCCC(C1CCC34C2CCC(C3)C(=C)C4)(C)C(=O)O 302.50 unknown https://doi.org/10.1021/NP50040A039
Kaurenoic Acid 73062 Click to see CC12CCCC(C1CCC34C2CCC(C3)C(=C)C4)(C)C(=O)O 302.50 unknown https://doi.org/10.1021/NP50040A039
> Lipids and lipid-like molecules / Steroids and steroid derivatives / Stigmastanes and derivatives
17-(5-ethyl-6-methylheptan-2-yl)-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol 86821 Click to see CCC(CCC(C)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)O)C)C)C(C)C 414.70 unknown https://doi.org/10.1021/NP50040A039
24-Ethylcholest-5-en-3beta-ol 22012 Click to see CCC(CCC(C)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)O)C)C)C(C)C 414.70 unknown https://doi.org/10.1021/NP50040A039
Stigmasterol 5280794 Click to see CCC(C=CC(C)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)O)C)C)C(C)C 412.70 unknown https://doi.org/10.1021/NP50040A039

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