English term
Cyperus gymnocaulos
They are type of rushes.
https://en.wikipedia.org/wiki/Cyperus_gymnocaulos
Thanks in advance,
| 4 | سعد شائك |
Hassan Achahbar
|
| 4 +1 | نبات السعادي الاسترالي/سعادي مشوك استرالي/سعادي استرالي بن الازهار |
Z-Translations Translator
|
| 4 | نبات السعد |
Ahmed Shalabi
|
Mar 26, 2021 17:51: Murad AWAD changed "Field" from "Other" to "Science" , "Field (write-in)" from "Cyperus gymnocaulos" to "(none)"
Proposed translations
Morocco
Bridging cultures since 2009
Native in: Arabic
Works in: English to Arabic, French to Arabic, Arabic to English, and 1 more.
سعد شائك
https://ar.wikipedia.org/wiki/سعد
From the list of its species it's obvious the Arabic name is a direct translation from Latin
https://en.wikipedia.org/wiki/Cyperus_gymnocaulos
The plant's common name is "spiny flatsedge", and spiny is probably what gymnocaulos means in Latin, though I could not confirm it with online dictionaries
So in Arabic I suggest السعد الشائك أو الشوكي
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Note added at 1 hr (2021-03-26 03:30:20 GMT)
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For the second species:
Cyperus vaginatus
سعد غمدي
| Do you suggestions for the second one (vaginatus), or do you want me to put it in separate question? Thank you. |
| Thank you. |
28 years of experience
Native in: Arabic (Variants: UAE, Lebanese, Syrian, Libyan, Kuwaiti, Standard-Arabian (MSA), Palestinian, Iraqi, Sudanese, Egyptian, Jordanian, Yemeni, Saudi ) 
Works in: English to Arabic, Arabic to English, Arabic, and 5 more.
نبات السعادي الاسترالي/سعادي مشوك استرالي/سعادي استرالي بن الازهار
"Cyperus gymnocaulos, commonly known as spiny flatsedge,"
Here we have brown flatsedge in Al Maany
https://www.almaany.com/ar/dict/ar-en/flatsedge/
From same reference
" is a sedge of the family Cyperaceae that is native to Australia"
We have carex :
"Carex is a vast genus of more than 2,000 species[3] of grass-like plants in the family Cyperaceae, commonly known as sedges (or seg, in older books)
https://en.wikipedia.org/wiki/Carex
in Arabic:
السعادي او النمص
https://ar.wikipedia.org/wiki/سعادى
So my suggestion:
سعادي استرالي
سعادي مشوك استرالي
سعادي استرالي بني الازهار
It has brown flowers
"........ producing brown flowers."
Senior Arabic Linguist & Interpreter
Native in: Arabic (Variants: Egyptian, Standard-Arabian (MSA)) 
, English (Variant: Canadian)
Works in: English to Arabic, Arabic to English, German to Arabic, and 4 more.
نبات السعد
http://www.theplantlist.org/tpl/record/kew-236863
https://ar.wikipedia.org/wiki/%D8%B3%D8%B9%D8%AF%D9%8A%D8%A9_(%D9%86%D8%A8%D8%A7%D8%AA)
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