ray flower
The bilaterally symmetrical flowers around the edge of the head in many members of Compositae; each ray flower resembles a single petal.
GardenWeb Glossary of Botanical Terms
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Ray flower A flower with a strap-shaped corolla, usually found on the outer edge of a Compositae inflorescence.
Reblooming Typically said of a plant with a spring and later fall blooming ...
ray flower One of several small flowers often forming a ring around the disc flowers in a composite head.
receptacle The enlarged end of a flower stalk to which the flower parts are attached.
The brown-yellow-tipped ray flowers of Ratibida columnifera unfurl around the brownish central disk, but you can sometimes find reddish and yellow petals, too.
After the ray flowers have fallen off, cover the head with a cheesecloth or paper bag to keep birds away until you cut it and bring it inside. Two varieties popular for seed production are 'Giant Grey Stripe' and 'Mammoth Russian'.
Ask a child to draw a flower and chances are you'll be presented with a daisy lookalike, a central disk surrounded by ray flowers. That's the hallmark of the aster family, Asteraceae, also known as the composite family, Compositae.
It's about 2 feet tall; flowers have drooping ray flowers of yellow, butterscotch, and brownish purple. There's a columnar brown disc, which makes the flower looks like a sombrero with a drooping brim.
Yellow Salsify Tragopogon dubius (Composite-Asteracae) has yellow ray flowers on a multi-branched stem that contains a milky juice.
disc flowers search for term- the radially symmetrical flowers of the head in Compositae, as distinguished from the ligulate ray flowers.discoid search for term- a.
 See also: Flower, Ray flowers, Plant, Petal, Water
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