Flower of the Day: Water Willow

Justicia americana; Acanthaceae (acanthus family)

On a mid-June weekend Steve and I walked along the C&O Canal towpath from Pennyfield Lock to Violette’s Lock.  The wildflower scene was lean.  I have a rule that’s a cynical twist on Murphy’s Law: if it’s found growing along the canal, it’s probably an alien. Sadly on that day the rule mostly held.  But then I saw this:

20140615-DSC_0009

Tricky to photograph, as the plants were growing right in the water.  I couldn’t get any closer without sliding down the embankment into the water myself.  I figured these for aliens, too, but took some pictures, went home, and cracked open Newcomb’s.  And guess what?  They’re natives!

There’s another native with the common name water willow, Decodon verticillatus, aka swamp loosestrife.  They aren’t even closely related. Common names are an annoyance.

Water willow grows in colonies in wet soils or shallow water, from Texas east and north through Quebec.  It stands about three feet tall with narrow leaves; the purple and white flowers are borne on long stems arising from the middle and upper leaf axils.

20140615-DSC_0025

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 )

Google photo

You are commenting using your Google 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 )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.