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(Plants) any plant of the North American genus Rudbeckia, cultivated for their showy flowers, which have golden-yellow rays and green or black conical centres: family Asteraceae (composites). See also coneflower, black-eyed Susan
[C18: New Latin, named after Olaus Rudbeck (1630–1702), Swedish botanist]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(rʌdˈbɛk i ə, rud-)

n., pl. -i•as.
any composite plant of the genus Rudbeckia, having alternate leaves and showy flower heads.
[1750–60; < New Latin, after Olaus Rudbeck (1630–1702), Swedish botanist; see -ia]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rudbeckia - North American perennial herbs with showy cone-shaped flower headsRudbeckia - North American perennial herbs with showy cone-shaped flower heads
asterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs
aster family, Asteraceae, Compositae, family Asteraceae, family Compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia
coneflower - any of various plants of the genus Rudbeckia cultivated for their large usually yellow daisies with prominent central cones
Rudbeckia hirta, Rudbeckia serotina, black-eyed Susan - the state flower of Maryland; of central and southeastern United States; having daisylike flowers with dark centers and yellow to orange rays
cutleaved coneflower, Rudbeckia laciniata - tall leafy plant with erect branches ending in large yellow flower heads with downward-arching rays; grow in Rocky Mountains south to Arizona and east to the Atlantic coast
double gold, golden glow, Rudbeckia laciniata hortensia, hortensia - very tall branching herb with showy much-doubled yellow flower heads
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Others include echille (cassis), rudbeckia, delphinium, echinacia, dianthus, gaura, gaillardia, coreopsis and hosta.
Plants that will benefit from this include heleniums, sedums, rudbeckia, phlox and solidago.
Rudbeckia Viette's Little Suzy is a compact cultivar that blooms from midsummer to fall, glowing at the front of perennial borders.
Another option is the 'Indian Summer' variety of Rudbeckia hirta (Black-eyed Susan), which has swarms of jolly golden flowers from now right through to the first frost.
Rudbeckia These are bushy plants that create masses of bold, zingy yellow flowers.
Between cultured plants, the decorative species of Rudbeckia are present in particular or public gardens.
Plants that will benefit include heleniums, sedums, rudbeckia, phlox and solidago.
6 One annual we use here every year is Rudbeckia hirta 'Rustic Dwarfs Mixed'.
Many warm yellow herbaceous perennials look fantastic in mass plantings, such as the long-lasting Rudbeckia fulgida 'Goldsturm'' and late season heliopsis.
Officially named Rudbeckia Denver Daisy, the flower is based on the Rudbeckia hira, a daisy native to Colorado when pioneers founded the city, and Rudbeckia "Prairie Sun."