Slender St John's-wort
VU

Slender St John's-wort

Hypericum pulchrum

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Hypericum_pulchrum

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Slender St John's-wort faces significant pressure from habitat degradation and fragmentation of its specialized heathland and acidic grassland environments. Agricultural intensification and conversion of traditional grazing lands to more intensive farming practices have reduced suitable habitat across its range. Urban development and infrastructure expansion continue to fragment remaining populations, while changes in traditional land management practices, particularly the decline of extensive grazing systems, alter the open, nutrient-poor conditions this species requires.

Threat summary

Habitat

Slender St John's-wort inhabits acidic heathlands, moorlands, and nutrient-poor grasslands, typically on sandy or peaty soils. It thrives in open, sunny locations with low soil fertility, often associated with traditional extensive grazing systems and areas maintained by periodic disturbance.

TERRESTRIAL· major

Other threatened species in Hypericaceae

Trailing St John's-wortEN

Trailing St John's-wort

Hypericum humifusum

Unknown
Pale St John's-wortCR

Pale St John's-wort

Hypericum montanum

Unknown

Threatened in Algeria

Calidris ferrugineaVU

Calidris ferruginea

Declining
small mallowVU

small mallow

Malva pusilla

Unknown
Blind SnailVU

Blind Snail

Cecilioides acicula

Unknown
EN

Chalcides parallelus

Declining

Frequently asked questions

Why is Slender St John's-wort classified as Vulnerable?
Slender St John's-wort is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Slender St John's-wort faces significant pressure from habitat degradation and fragmentation of its specialized heathland and acidic grassland environments. Agricultural intensification and conversion of traditional grazing lands to more intensive farming practices have reduced suitable habitat across its range. Urban development and infrastructure expansion continue to fragment remaining populations, while changes in traditional land management practices, particularly the decline of extensive grazing systems, alter the open, nutrient-poor conditions this species requires.
Where does Slender St John's-wort live?
Slender St John's-wort occurs in Algeria, Australia, Austria, Belgium, Czechia, and Denmark (plus 22 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Slender St John's-wort?
The main threats to Slender St John's-wort are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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