Biarum tenuifolium

Biarum tenuifolium is a tuberous flowering plant species in the family Araceae.

Taxonomy
Within the genus Biarum, it is the only species in subgenus Biarum.

Subspecies
Six subspecies are generally recognized:
 * Biarum tenuifolium subsp. tenuifolium: southern Italy to the southern Balkans.
 * Biarum tenuifolium subsp. zelebori: Greece and south-western Turkey.
 * Biarum tenuifolium subsp. arundanum: heavy terra rossa soils in Portugal and Spain
 * Biarum tenuifolium subsp. galianii: loose sandy soils in south-western Spain.
 * Biarum tenuifolium subsp. abbreviatum: Central Mediterranean, from Italy to Greece.
 * Biarum tenuifolium subsp. idomenaeum: Crete.

Subspecies arundanum and galianii have also been treated as two independent species (Biarum arundanum and Biarum galianii), or lumped together under Biarum arundanum.