Square-stemmed St John's Wort
Taken at Baron's Haugh on 24th June 2022 using Panasonic Lumix TZ70 in macro mode.
Fact File



 




Taken at Baron's Haugh 28th June 2018 using Nikon D5200 with Sigma 600 mm zoom lens.
Fact File

Square-stemmed St John's Wort.
Species:
Order:
Family:
Habit:
AKA: 		Hypericum tetrapterum.
Malpighiales.
Hypericaceae.
Perennial
Habitat:
Blooms:
Height:
Feature:
 Damp places, marshes, pond and river margins.
June - September.
30 - 60 cms.
St. John's-worts can occur as nuisance weeds in farmland and gardens. On pastures, some can be more than a nuisance, causing debilitating photosensitivity and sometimes abortion in livestock.