In the true bluebell the flowering shoot is clearly one-sided with drooping rich blue (or white) flowers; anthers cream
Hyacinthoides hispanica. . . . Spanish Bluebell
Anthers same colour as 'petals', which can be white or blue; N.B. The true Spanish bluebell is rare - most 'Spanish' bluebells are hybrids (below)
Hyacinthoides x massartiana. . . . Hybrid Bluebell
Commoner than the H. non-scripta or H. hispanica parents and intermediate; tends to have paler blue flowers, erect flowering shoot with flowers on all sides of the shoot, flowers not drooping
The commonest of several mostly introduced spp.; flowers spread along stem - not actually an umbel; note green undersides of 'petals'(tepals) Several other spp. are native or have been naturalised in various places (O. pyrenaicum, O. nutans and O. arabicum)
Can be confused with - Alliums, but they have all fls coming from same point (true umbels):
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Asparagaceae/Polygonatum . . . . Solomon's-seal
Polygonatum multiflorum . . . . Solomon's-seal
Elliptic lvs (fls 9-15 mm long); locally frequent in basic woodland in En & Wa.
Polygonatum x hybridum . . . . Garden Solomon's-seal
Similar to Solomon's-seal (P. multiflorum) but fls 15-22 mm, and slightly ridged stems; scattered throughout BI