Get notified whenever new sightings are posted via our Twitter account @NLNatureAlerts

St. Johns wort (Hypericum perforatum) Links

Previous Sightings by Marcel Roy

Thumbnail ImageWhite clover (Trifolium repens) on July 01, 2011
Thumbnail ImageJapanese knotweed (Polygonum cuspidatum) on June 06, 2011
Thumbnail ImageCrackerberry (Cornus canadensis) on July 29, 2011
Thumbnail ImageCommon Merganser on January 28, 2011
Thumbnail ImageRowan (aka Dogberry) on July 18, 2011
Thumbnail ImageEuropean Starling (Sturnus vulgaris) on November 07, 2010
Thumbnail ImageGray Jay on September 28, 2009

Statistics

  • Viewed: 1656 times
  • Liked: 5 times

Do you like the sighting?

5 liked it
Contributors » Marcel Roy » St. Johns wort (Hypericum perforatum)

St. Johns wort (Hypericum perforatum) discovered by Marcel Roy (#728)

Powered By Subgurim(http://googlemaps.subgurim.net).Google Maps ASP.NET

Sighting Info

Observed: August 11, 2011 @ 6:00 PM
Posted on: January 24, 2012 @ 7:44 AM (diff: 166 days)
Comments:
John's Wort - This introduced perennial plant is 1–2½' tall, branching frequently. The round stems are hairless and light green; the larger stems have a pair of small longitudinal ridges. The opposite leaves are about 1" long and 1/3" across. They are oblong, hairless, and sessile. The surface of these leaves is perforated by numerous translucid dots, and there are often scattered black dots along the margin of the lower surface. The upper stems terminate in flat-headed clusters of several flowers (cymes). Each flower is about ¾" across, consisting of 5 yellow petals, 5 green sepals, 3 styles, and numerous stamens (more than 20).

Sighting's Identification

Help to Identify

Newfoundland Nature

Newfoundland Nature

Leave Your Comment

In order to leave a comment, you need to register. It is very fast and easy

Click here to login or register