Random Plant: Pineapple weed

Pineapple weed (Matricaria discoidea, Asteraceae) photographed 05/27/2011 near Blissfield Michigan.

Pineapple weed (Matricaria discoidea, Asteraceae) is unique for a couple of reasons.  First, the flower heads lack the prominent ray florets typical of the aster family, possessing only cone-shaped aggregations of small disc florets.  Second, the finely-divided leaves produce a distinct pineapple-like scent when they’re crushed (Brandenburg 2010).

Pineapple weed (Matricaria discoidea, Asteraceae) photographed 05/27/2011 near Blissfield Michigan.

Despite these interesting traits, pineapple weed (also called disc mayweed) is often overlooked because it’s so common.  Native to the northwestern United States, it has spread over much of the continent (Brandenburg 2010).  It can usually be found in abundance in open, disturbed areas like trails, roadways, and fields.  These particular photos were taken along the edge of a farm field.

Literature cited:

Brandenburg, D.M.  2010.  National Wildlife Federation Field Guide to Wildflowers of North America.  Andrew Stewart Publishing, Inc., New York, NY.

Advertisements

About Jeremy Sell

Science and nature nerd.
This entry was posted in Botany, Random Plant and tagged , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s