pampas grass
noun
pam·pas grass ˈpam-pəz- 
-pəs-,
ˈpäm-
: a South American grass (Cortaderia selloana) often grown for ornament that has showy white panicles borne on tall stems
Example Sentences
Recent Examples on the Web Take a wedding in Kyoto which included an abundance of pampas grass, or a New York City affair at the Rainbow Room where the couple said their vows under an arch of moody Japanese maple leaves. 
Elise Taylor, Vogue, 16 Aug. 2022 Hough and Erbert, 27, announced their engagement on Instagram Thursday, showing that very transformation — their home was draped in white rose petals, pampas grass and white candles. Kelly Wynne, PEOPLE.com, 7 June 2022 Its pink, yellow, and purple flowers and pampas grass are intertwined with green leaves. Isabel Garcia, PEOPLE.com, 5 June 2022 Colorful floral arrangements in every shade of orchids, peonies, and pampas grass embellished the backdrop of glistening disco balls and rainbow neon signs. Concetta Ciarlo, Vogue, 2 June 2022 Add it to your mantel with greenery or pampas grass to finish the look. Better Homes & Gardens, 25 Feb. 2022 The aisle was lined with pampas grass and flowers in pale pink tones. Christian Allaire, Vogue, 28 Mar. 2022 Waves crash against the sea wall, which sits below a steep bank of weeds — susuki (Japanese pampas grass), Japanese mugwort and feral hydrangea. New York Times, 3 Dec. 2021 Feathery plumes of wheat-tone pampas grass are the star attraction on the formal dining table. Jody Garlock, Better Homes & Gardens, 23 Sep. 2021 See More
Elise Taylor, Vogue, 16 Aug. 2022 Hough and Erbert, 27, announced their engagement on Instagram Thursday, showing that very transformation — their home was draped in white rose petals, pampas grass and white candles. Kelly Wynne, PEOPLE.com, 7 June 2022 Its pink, yellow, and purple flowers and pampas grass are intertwined with green leaves. Isabel Garcia, PEOPLE.com, 5 June 2022 Colorful floral arrangements in every shade of orchids, peonies, and pampas grass embellished the backdrop of glistening disco balls and rainbow neon signs. Concetta Ciarlo, Vogue, 2 June 2022 Add it to your mantel with greenery or pampas grass to finish the look. Better Homes & Gardens, 25 Feb. 2022 The aisle was lined with pampas grass and flowers in pale pink tones. Christian Allaire, Vogue, 28 Mar. 2022 Waves crash against the sea wall, which sits below a steep bank of weeds — susuki (Japanese pampas grass), Japanese mugwort and feral hydrangea. New York Times, 3 Dec. 2021 Feathery plumes of wheat-tone pampas grass are the star attraction on the formal dining table. Jody Garlock, Better Homes & Gardens, 23 Sep. 2021 See More Word History
First Known Use
circa 1851, in the meaning defined above