Wild Flowers of Sleepy Hollow LakeConeflower, Green-Headed (Rudbeckia laciniata)
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Coneflower, Green-Headed (Rudbeckia laciniata)
Table of Contents

Coneflower, Green-Headed (Rudbeckia laciniata) - 01
(Coneflower, Green-Headed (Rudbeckia laciniata) - 01)  This small patch of green-headed coneflowers was growing a short distance off the side of the road, which is typical of this wildflower.  It can also be found in rich, moist fields and thickets.  Mature green-headed coneflowers can grow from three feet to twelve feet in height.
Coneflower, Green-Headed (Rudbeckia laciniata) - 01a
(Coneflower, Green-Headed (Rudbeckia laciniata) - 01a)  Green-headed coneflowers bloom from July to September.  Their name comes from the yellow ray flowers that surround a green disk.  As the disc flowers mature, they turn brown, making identification harder.  When the ray flowers first open they extend outward, producing a three inch diameter flower; but as they mature they droop downward, making their diameter appear smaller.
Coneflower, Green-Headed (Rudbeckia laciniata) - 01b
(Coneflower, Green-Headed (Rudbeckia laciniata) - 01b)  We have noticed that the ray flowers of the green-headed coneflower are relatively fragile and seem to fall off easily.  We could not find anything in the literature stating how many ray flowers the green-headed coneflower has, but from our own observation, nine seems to be common, but that number could vary.
Coneflower, Green-Headed (Rudbeckia laciniata) - 02
(Coneflower, Green-Headed (Rudbeckia laciniata) - 02)  The disk flowers on this green-headed coneflower have mostly turned brown.  The ray flowers have three "ribs" with a somewhat ragged tip.
Coneflower, Green-Headed (Rudbeckia laciniata) - 02a
(Coneflower, Green-Headed (Rudbeckia laciniata) - 02a)  This photo gives us a closer look at the maturing disk flowers of the green-headed coneflower.  The pistil can be seen protruding above most of the mature disk flowers.
Coneflower, Green-Headed (Rudbeckia laciniata) - 03
(Coneflower, Green-Headed (Rudbeckia laciniata) - 03)  We took this photo of the green-headed coneflower in the early morning, when it was still covered with dew drops.
Coneflower, Green-Headed (Rudbeckia laciniata) - 03a
(Coneflower, Green-Headed (Rudbeckia laciniata) - 03a)  This is a bee's-eye view of the mostly immature disk flowers of the green-headed coneflower.  The disk flowers mature from the ray flowers upward to the tip of the cone.
Coneflower, Green-Headed (Rudbeckia laciniata) - 04
(Coneflower, Green-Headed (Rudbeckia laciniata) - 04)  This fully mature green-headed coneflower has lost all its ray flowers.
Coneflower, Green-Headed (Rudbeckia laciniata) - 04a
(Coneflower, Green-Headed (Rudbeckia laciniata) - 04a)  We did not find anything in the literature concerning the number of stamens each disk flower of the green-headed coneflower has, but from our observation, each disk flower appears to have three stamens and one pistil.
Coneflower, Green-Headed (Rudbeckia laciniata) - 05
(Coneflower, Green-Headed (Rudbeckia laciniata) - 05)  We have observed that some of the cones of the green-headed coneflower are concave at the tip.  From this photo we can also observe that as the disk flowers mature, the green buds elongate; then the brown center projects outward, followed by the pistil with its "winged" stigma.
Coneflower, Green-Headed (Rudbeckia laciniata) - 06
(Coneflower, Green-Headed (Rudbeckia laciniata) - 06) In this photo, we have a close up look at some of the yellow ray flowers of the green-headed coneflower.
Coneflower, Green-Headed (Rudbeckia laciniata) - 07
(Coneflower, Green-Headed (Rudbeckia laciniata) - 07) This is another look at a green-headed coneflower.

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