Yes, BUGLOSS is a Scrabble word!

Letter values in Scrabble US: B 3, U 1, G 2, L 1, O 1, S 1, S 1.

Is it a valid word?

BUGLOSS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

perennial or biennial herb cultivated for its delicate usually blue flowers
widespread European weed with spiny tongue-shaped leaves and yellow flowers; naturalized in United States

Also: anchusa officinalis, bristly oxtongue, picris echioides.