Wild Chamomile, aka Pineappleweed

I was caring for a seedling in the blueberry bed that looked like

it might have been a cosmo or poppy or marigold, at least something from seeds I'd thrown there.

Turns out it's a weed.

Wild Chamomile or Pineappleweed - Matricaria discoidea

It's not bad looking for a weed.

It has really weird flowers though, like chamomile, but without the petals!

Just little yellow buttons. 

It's supposed to smell like pineapple when crushed.

I thought it was called pineappleweed because of its shape, so haven't tried crushing and smelling yet.

It's also edible, and like other chamomiles makes a nice tea.

They are disk flowers.  These are the ones with tiny tubular flowers in the center part, and no ray florets, what we call petals.

Many flowers, sunflowers and black-eyed Susans for example, have both disk flowers and ray flowers.  They are called "composite" flowers, with the disk forming the center "eye," and the rays the petals.  Botanically speaking each petal is a flower!  And, a flower isn't really a flower, but many florets!  But, in order to produce seeds, a plant must have the disk florets. 

To make it even more confusing, some flowers look like they have petals, but are made up of only disk florets.  Straw flowers are an example of this type.

So, I take this as meaning a flower can have only disk florets, but not only rays.  Without the disks a flower can't reproduce.

At any rate, the wild chamomile is an interesting plant.  "Wild chamomile" sounds so much better than calling it a weed!