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The Heliotropism section mentions "The heliotropic motion of the bud is performed by the pulvinus, a flexible segment just below the bud, due to reversible changes in turgor pressure, which occurs without growth". How is turgor pressured changed actively by the plant? Is the citation for the line the same as the citation for the previous sentence? If not, what is the source?
Thank you in advance to whoever holds the knowledge and responds. 冷雾 (talk) 00:38, 28 July 2013 (UTC)
i think that this is a very well done article. It has all the sections clearly labeled and it is easy to read. One small thing would maybe be to have less sections, although I do think that for showing so many different aspects of the sunflower you do a good job of keeping it focused. Overall well done, probably one of the best I have read. I would say try to simplify it a little bit, and are all the pictures relevant to the article? Adrian Arias —Preceding unsigned comment added by Aarias (talk • contribs)
what do they get out of it? is this known? guessed by relevant public work? I myself would even take a clue, here. (thats I really wanna get info on this) Bye and thanks. Pablo2garcia 00:25, 2 February 2007 (UTC)
It says that he cultivated them around 1000 B.C.... but this is impossible because Pizarro didn't even go to the Americas until the 16th century A.D.
There are many species in the genus Helianthus all of them "sunflowers", they possibly deserve a mention as do the decorative, dwarf and giant varieties that can aparently grow upto 7.76m (25ft 5.5in) tall. Some mention could also be made of sunflower growing competitions or how to grow them. 84.51.146.100 06:19, 19 April 2007 (UTC)
I made a comment about this on my Talk page, and I will copy an excerpt here as my source:
Here's a line from the beginning of the Weed article (emphasis mine):
Weeds may be unwanted because they are unsightly, or they limit the growth of other plants by blocking light or using up nutrients from the soil.
I would also agree with the "unsightly" definition to an extent, but you cannot generalize it to "any plants that are unwanted, or haven't been planted by the grower." What if, for example, an acorn is somehow brought onto the property (maybe by an animal)? Is the oak tree that grows from it considered a weed? --Procrastinatrix 18:42, 2 August 2007 (UTC)
REALLY PEOPLE!!! Look up the definition of WEED in the dictionary! Learn instead of making up meanings of words! — Preceding unsigned comment added by 67.247.188.156 (talk) 21:16, 1 June 2012 (UTC)
Wikipedia articles aren't really supposed to be general image gallery pages; ideally, each image should have a specific role in illustrating some fact about sunflowers. AnonMoos 07:22, 12 September 2007 (UTC)
I don't understand this sentence...
"Sunflowers can be processed into a peanut butter alternative, Sunbutter, especially in China, Russia, the United States, the Middle East and Europe."
It seems redundant. It lists pretty much the whole world. maybe it should be rephrased? —Preceding unsigned comment added by Lordmichael21 (talk • contribs) 20:14, 2 October 2007 (UTC)
The sentence doesn't make sense because it is grammatically incorrect. (Rikku 16:04, 26 October 2007 (UTC))
You guys should try to make more pictures of sunflower seeds such as the process of frying it. Tell me when it is posted. Andygusgs (talk) 23:52, 12 April 2008 (UTC)
This article talk page was automatically added with ((WikiProject Food and drink)) banner as it falls under Category:Food or one of its subcategories. If you find this addition an error, Kindly undo the changes and update the inappropriate categories if needed. The bot was instructed to tagg these articles upon consenus from WikiProject Food and drink. You can find the related request for tagging here . Maximum and careful attention was done to avoid any wrongly tagging any categories , but mistakes may happen... If you have concerns , please inform on the project talk page -- TinucherianBot (talk) 01:33, 4 July 2008 (UTC)
In fact, the origin of domestication has been fairly conclusively shown to have happened in the southeastern US. Basically, all domesticated sunflowers (whether from mexico or wherever) are more closely related to wild populations from the US than to wild populations in mexico. This has been shown using allozymes, nuclear, and chloroplast markers. There are only two archeological sites in mexico, plus some ehtnographic data to suggest otherwise, and these could have originated from an early (pre-columbian) introduction from the north.
lots of evidence to back this up:
Burke, John, M., Shunxue Tang, Steven J. Knappb, and Loren H. Rieseberg. 2002. Genetic Analysis of Sunflower Domestication. Genetics, 161: 1257-1267
Abigail V. Harter, Keith A. Gardner1, Daniel Falush2, David L. Lentz3, Robert A. Bye4 & Loren H. Rieseberg. 2004. Origin of extant domesticated sunflowers in eastern North America. Nature, 430: 201-205
Rieseberg, Loren H. and Gerald J. Seiler. 1990. Molecular Evidence and the Origin and Development of the Domesticated Sunflower (Helianthus annum , Asteraceae). Economic Botany 44: 79-91.
Admittedly there is "controversy" in the field about this but the article should at least reflect both perspectives, since the evidence is definitely on the side of one domestication origin in the US.
24.84.193.187 (talk) 14:26, 31 July 2008 (UTC)maayan
This page needs to be moved to ''Helianthus annuus'' or Common sunflower. Sunflower covers a large group of plants and the only vernacular name limited to this species is "Common sunflower". Note this search for a quick overview. [1]. Hardyplants (talk) 07:04, 11 December 2008 (UTC)
Sunflowers take from 10-20 days to start gerrmination to get them too start gerrmination you have to have them in a sunny spot. —Preceding unsigned comment added by 69.14.133.164 (talk) 20:40, 18 April 2009 (UTC)
Sunflowers may also be used to extract toxic ingredients from soil, such as lead, arsenic and uranium. They were used to remove uranium, cesium-137, and strontium-90 from soil after the Chernobyl disaster (see phytoremediation).
This doesn't explain why Sunflowers may be used for this purpose? Is it just that they are an abundant organic substance that is found in surroundings at these circumstance and therefore free access (that organic substances have a hygroscopic or "sponging" effect to the high end element or such?). In addition the Cough medicine article says that the sunflower is an expectorant, is this do to a molecule or alkaloid that grows within it or a combination of the elements that form it; or is this a common facet to grass and hay and most other plant life (which I know animals eat for various gastro-intestinal remedies)? 4.242.174.188 (talk) 11:46, 6 October 2009 (UTC)
--222.64.215.115 (talk) 05:41, 6 April 2010 (UTC)
Hello! This is a note to let the editors of this article know that File:Sunflower sky backdrop.jpg will be appearing as picture of the day on January 31, 2011. You can view and edit the POTD blurb at Template:POTD/2011-01-31. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page so Wikipedia doesn't look bad. :) Thanks! howcheng {chat} 06:27, 29 January 2011 (UTC)
The notion that mature sunflower heads track the sun appears to be widespread. I suspect many people come to the WP page to find out if this is true. I think it is relevant to note that this notion is not true. To say that mature sunflowers exhibit no diurnal movement is not strong enough a refutation of this myth, and the use of the word diurnal is unnecessarily obscure, in my opinion.```` — Preceding unsigned comment added by Michaplot (talk • contribs) 09:52, 18 April 2011 (UTC)
The following images were in a gallery removed from the page per WP:IG because they're a rather indiscriminate collection of images of the article subject. When the article is expanded, some may be moved back to the article inline with prose. Until then they're queued here. Rkitko (talk) 13:55, 8 July 2012 (UTC)
I've restored the page following an undiscussed move. If the page needs renaming, seek consensus here first. Vsmith (talk) 23:27, 15 August 2012 (UTC)
I am not sure the new section at the beginning has improved the article. It is an plethora of botany jargon (dicot, radicle, taproot, apical meristem, plumule, xylem, phloem, cortex, pith, calyx, corolla, and perianth). I would think it is not something the general reader of wikipedia would want to read, outside the scope of wikipedia. Ceinturion (talk) 18:26, 5 December 2012 (UTC)
I think it would be better to remove the entire 'culture' section, which currently is just a bullet list of non-encyclopedic information (tourist information and company logos). Any objections? Ceinturion (talk) 09:48, 3 July 2013 (UTC)
This article is full of incorrectly used jargon and some bizarre usages, some of which are not even botanical. Either someone is messing with us, or the article was edited by someone with a poor grasp of botany. The entire structure section should probably be removed or completely rewritten, and the rest of the article rewritten as well. This article used to be better. What happened? Any thoughts?Michaplot (talk) 17:17, 17 April 2014 (UTC)
More information on agricultural cultivation and world production areas would be welcome. The map is nice but a description would be desirable. It is for example not clear how the crop is normalised but I guess that maybe a crop of x kg/ha might be an average eg corresponding to a case where 25% of the cultivated soil is used for sunflower giving 4x kg/ha on average for those 25% i.e. x=25%*4x. — Preceding unsigned comment added by 150.227.15.253 (talk) 21:18, 4 July 2014 (UTC)
The result of the move request was: page moved. Armbrust The Homunculus 08:12, 5 July 2014 (UTC)
Common sunflower → Helianthus annuus – Botany article on a species, belongs under its own Latin-named article space. Consensus seems to be that this is where it belongs, without controversy. Would move it there myself over the current redirect but there is already an edit history so no can do. KDS4444Talk 10:56, 28 June 2014 (UTC)
Hello! This is a note to let the editors of this article know that File:Iglesia de Nuestra Señora de La Blanca, Cardejón, España, 2012-09-01, DD 02.JPG will be appearing as picture of the day on October 18, 2014. You can view and edit the POTD blurb at Template:POTD/2014-10-18. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page. Thanks! — Crisco 1492 (talk) 02:13, 27 September 2014 (UTC)
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I plan on adding a sentence to the heliotropism section to include a detail I thought would help others understand how helioptropism works. This is my first time editing a wiki article so I am still not sure what the proper etiquette is for informing others that I am adding onto an article. If it is necessary, the sentence I am going to add is: They are able to regulate their circadian rhythm in response to the blue-light emitted by a light source. Leetif03 (talk) 22:54, 21 April 2018 (UTC) [1]
I am curious why so little information is included about all the different ways it is used as a food source. The only thing mentioned is use of seeds but nothing about the other parts of the plant. One can find dozens of videos and many articles on the internet about the use of Sunflower seedlings as microgreens as just one example. There are old wife's tales about the leaves being poisonous but I've been eating them in salad since I was a kid. If they are toxic they sure do take a long time to make you sick as I'm in my sixties. Would it not be appropriate to add a section expounding upon the use of various parts of the plant for food. As far as I know the entire plant is edible. Roots can be cut up and eaten raw as a slaw or boiled to make a tea. The stalk can be cooked in a soup or steamed or pealed and eaten raw and taste a little like celery. The leaves, flower petals, bud all can be eaten raw or cooked. The plant is loaded with nutrients. — Preceding unsigned comment added by 35.142.155.80 (talk) 07:57, 11 April 2020 (UTC)
I added in a sentence explaining why the Helianthus annuus is harmful to the crops which were listed previously. — Preceding unsigned comment added by Finfinbear (talk • contribs) 21:04, 21 October 2021 (UTC)
It has been proposed in this section that Common sunflower be renamed and moved to Sunflower. A bot will list this discussion on the requested moves current discussions subpage within an hour of this tag being placed. The discussion may be closed 7 days after being opened, if consensus has been reached (see the closing instructions). Please base arguments on article title policy, and keep discussion succinct and civil. Please use ((subst:requested move)) . Do not use ((requested move/dated)) directly. |
Helianthus annuus → Sunflower – Sunflowers are exceedingly too common & well known to have their article be placed under the Latin name rather than the common name. The rationale for moving it here was a supposed "consensus" that all articles on plants must be under the Latin names; this is apparently a consensus of purely botany-interested editors, and not of the community at large, and for relatively obscure plants, that practice seems fine. Sunflower is not one of such plants. For analogy, we have the articles apple, plum, rose, pineapple, and tulip, not Malus domestica, Prunus domestica, Rosa spp., Ananas comosa, and Tulipa. Note: for whatever reason, "sunflower" currently redirects to the article on the genus; I think that page should be left where it is, but sunflower should be the name of this article; we can put a hatnote at the top that says something like "For the genus, which contains some species that are also sometimes called sunflowers, see..." 2600:1702:4960:1DE0:50F6:C1D6:31E7:5B10 (talk) 03:31, 1 March 2022 (UTC)