Common names:
Round-headed leek, Bristol onion
Family:
Scientific name:
Allium sphaerocephalon
Main flower color:
Range:
Native only to the Avon Gorge and Jersey; introduced to a few other locations in southern England, mainly coastal
Height:
Up to 80 cm
Habitat:
Limestone cliffs and hills
Flowers:
Reddish-purple, with exserted stamens (six) and stigmas, in a dense, compact, spherical cluster, of few to many. No bulbils; only flowers. The inflorescence is subtended by a pair of thin, papery bracts
Leaves:
Grass-like, half-cylindrical in cross-section
Season:
June to July
Rarity:
★★★★★
