St. John’s-wort

Gordon Neish

Plant Bio

Common Name:St. John's-wort
Family:Hypericaceae
Genus:Hypericum
Species:perforatum
Classification/Rank:Aggressive or Under Bio-control
Method of Transportation:
Habitat/Range:• a companion with common tansy in the Terrace area. • prevalent along Hwy 16 from the Skeena River Bridge west to the A&W in Terrace. • moving east and small infestations are appearing along Hwy 16 through to the eastern edge of the region. • moving north towards the region along the CN rail line and Hwys 5 and 97. • not thought to present a serious threat due to successful biological control

Description

• perennial herb from a rhizome; grows 0.1 to 1.0 m tall
• stems erect, much branched above, smooth
• stem leaves lance-shaped, unstalked, obtuse, smooth with translucent glandular dots throughout and black marginal dots
• flowers are yellow; occur as an inflorescence of over 100 flowers

News

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posted: September 11, 2017
Annual General Meeting - Northwest Invasive Plant Council

Join us for our Annual General Meeting.

October 19th, 2017
9:30 AM to 2:00 PM
North Cariboo Senior Soccer League Clubhouse
4222 18th Ave,...

posted: July 14, 2017
Attend the BC Northern Exhibition for free!

The Northwest Invasive Plant Council will have an Information Booth at this year's BCNE, and we're looking for volunteers to help out.

You...