CR

Thin-flowered Colchicum

Colchicum leptanthum

Declining

Overview

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

Colchicum leptanthum faces severe threats from agricultural expansion and intensive grazing in its limited Mediterranean range. The species' extremely restricted distribution makes it particularly vulnerable to habitat conversion, while overgrazing by livestock degrades the specialized grassland communities where it occurs. Urban development pressure in coastal Mediterranean regions further fragments its already tiny populations.

Threat summary

Habitat

This autumn-flowering bulb inhabits dry grasslands, rocky slopes, and open woodlands in Mediterranean climates. It typically grows in well-drained soils on hillsides and coastal plains at low to moderate elevations.

Grassland· major

Conservation measures underway

Species recovery

Other threatened species in COLCHICACEAE

EN

Colchicum rechingeri

Declining
EN

Iphigenia stellata

Declining
VU

Colchicum psammophilum

Declining
EN

Iphigenia ratnagirica

Declining

Threatened in Türkiye

Luschan's SalamanderEN

Luschan's Salamander

Lyciasalamandra luschani

Declining
EN

Baran's Newt

Neurergus barani

Declining
CR

Tatli's Milk Vetch

Astragalus tatlii

Unknown
Scarce BlackneckCR

Scarce Blackneck

Lygephila craccae

Unknown

Frequently asked questions

Why is Thin-flowered Colchicum classified as Critically Endangered?
Thin-flowered Colchicum is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Colchicum leptanthum faces severe threats from agricultural expansion and intensive grazing in its limited Mediterranean range. The species' extremely restricted distribution makes it particularly vulnerable to habitat conversion, while overgrazing by livestock degrades the specialized grassland communities where it occurs. Urban development pressure in coastal Mediterranean regions further fragments its already tiny populations.
Where does Thin-flowered Colchicum live?
Thin-flowered Colchicum occurs in Türkiye. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Thin-flowered Colchicum?
The main threats to Thin-flowered Colchicum are 1.1, 4.1, 7.2, and ai-1. The full IUCN-classified threat record for this species is detailed on the species page.

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