<entry id="2229320" stat="A" corpus="jmdict" type="jmdict">
<ent_corp type="jmdict">jmdict</ent_corp>
<ent_seq>2540300</ent_seq>
<k_ele>
<keb>花椿</keb>
</k_ele>
<r_ele>
<reb>はなつばき</reb>
</r_ele>
<sense>
<pos>&n;</pos>
<misc>&rare;</misc>
<gloss>flowering camellia</gloss>
<gloss>camellia flower</gloss>
</sense>
<info>
<audit time="2010-04-15 00:00:00" stat="A">
<upd_detl>Entry created</upd_detl>
</audit>
<audit time="2023-04-23 17:48:37" stat="A" unap="true">
<upd_name>Brian Krznarich</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>Compare results of these three searches:
"椿の花の色" reasonable actual results
"椿花の色" a few actual results
"花椿の色" no real results (incidental alignment of 花 and 椿)

花椿	27320
This entry is not common for its dictionary definition, but for its association with the makeup company Shiseido. 
https://www.youtube.com/watch?v=HG615nCBi9c

There is a magazine by this title associated with the company. If you image-search  花椿, you get magazine covers.

Reverso entries are almost all about Shiseido, and or the street it stands on in Ginza, 花椿通り. (A few entries are from fiction, where 花椿 is a school name or something like that, but never a flower).
https://context.reverso.net/translation/japanese-english/%E8%8A%B1%E6%A4%BF

To the extent that it has a definition, the primary one seems to be , as the kanji order suggests, an entire flowering plant.  A single flower is offered by one source as a secondary option.

If it were me, I'd delete the entry entirely.  Not in sankoku, nikk, or daijs.  Guessing it was added explicitly to some references due to the popularity of the company name. Not used for literary purposes that I can see.

(Part of the reason for deleting is A+B, the meaning and reading are plainly obvious, and the better way to say "camellia flower" is 椿の花, or even 椿花, both of which seem more common than this for the purpose of referring to actual flowers)

And/Or, I'd add an actual entry for the magazine/company, but I'm not sure it's popular enough to break it out of jmnedict.</upd_detl>
<upd_refs>https://corp.shiseido.com/en/company/company-name/
Shiseido’s symbolic camellia logo was designed in 1915 by the company’s first president Shinzo Fukuhara. It may have had a few minor adjustments since then, but it has stood the test of time and remains a firm part of Shiseido’s identity to this day.

https://ja.wikipedia.org/wiki/%E8%8A%B1%E6%A4%BF
花椿（はなつばき）は資生堂のPR誌、企業文化誌。1937年創刊。


https://hyogen.info/word/3216497
花が咲いている椿。また椿の花。
例文はまだありません

https://www.weblio.jp/content/%E8%8A%B1%E6%A4%BF
季語・季題辞典 索引トップランキング
日外アソシエーツ株式会社日外アソシエーツ株式会社
花椿
読み方：ハナツバキ（ｈａｎａｔｓｕｂａｋｉ）
花の咲いた椿</upd_refs>
<upd_diff>@@ -11,0 +12,2 @@
+&lt;misc&gt;&amp;rare;&lt;/misc&gt;
+&lt;gloss&gt;flowering camellia&lt;/gloss&gt;</upd_diff>
</audit>
<audit time="2023-04-23 18:05:23" stat="A" unap="true">
<upd_name>Brian Krznarich</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>Might be poetic.  Twitter is mostly the cosmetics company too, but here is a reference including tanka poetry...

It is a flowering camellia, not a single flower.

(twitter search now requires a login to use, that's a shame)

https://nitter.net/nijioka/status/1639035301694959616#m</upd_detl>
</audit>
<audit time="2023-04-24 02:08:54" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_refs>Not in JEs.</upd_refs>
</audit>
</info>
</entry>