
1) Asterid dicot genus 2) Genus rudbeckia
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https://www.crosswordclues.com/clue/rudbeckia

Rudbeckia ə is a plant genus of 23 species in the family Asteraceae. The species are commonly called coneflowers and black-eyed-susans; all are native to North America and many species are cultivated in gardens for their showy yellow or gold flower heads. The species are herbaceous, mostly perennial plants (some annual or biennial) growing to 0.5...
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http://en.wikipedia.org/wiki/Rudbeckia

• (n.) A genus of composite plants, the coneflowers, consisting of perennial herbs with showy pedunculate heads, having a hemispherical involucre, sterile ray flowers, and a conical chaffy receptacle. There are about thirty species, exclusively North American. Rudbeckia hirta, the black-eyed Susan, is a common weed in meadows.Rudbeckia: words ...
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http://thinkexist.com/dictionary/meaning/rudbeckia/

(from the article `coneflower`) ...have yellow ray flowers, brownish disk flowers, and segmented leaves. Prairie coneflower (Ratibida columnaris) and R. pinnata are grown in ...
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http://www.britannica.com/eb/a-z/r/76

(Black-Eyed Susan, Brown-Eyed Susan, Coneflower, Gloriosa Daisy) This group of hardy, herbaceous perennials and annuals come from North America and belong to the Daisy family, Compositae. They form neat clusters, 1 to 3 feet high. The oval to elliptic shaped leaves are mostly basal and grow 3 to 6 inches long. The single or double flowers are 2 to ...
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http://www.encyclo.co.uk/local/10004
Rud·beck'i·a noun [ New Latin So named after Olaf
Rudebeck , a Swedish botanist.]
(Botany) A genus of composite plants, the coneflowers, consisting of perennial herbs with showy pedunculate heads, having a hemispherical involucre, sterile ray flowers, and a conical chaffy receptacle...
Found on
http://www.encyclo.co.uk/webster/R/101

Rudbeckia is a genus of hardy North American herbaceous perennial plants, belonging to the family Compositae. They usually bear more or less purple flower heads, with or without yellow rays and with conical much-elevated receptacles.
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http://www.probertencyclopaedia.com/browse/BR.HTM

[
n] - North American perennial herbs with showy cone-shaped flower heads
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http://www.webdictionary.co.uk/definition.php?query=Rudbeckia
genus Rudbeckia noun North American perennial herbs with showy cone-shaped flower heads
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https://www.encyclo.co.uk/local/20974

any composite plant of the genus Rudbeckia, having alternate leaves and showy flower heads.
Found on
https://www.infoplease.com/dictionary/rudbeckia
No exact match found.