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Key to Andersonglossum

Boraginaceae

Andersonglossum

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1 Nutlets 3.5-5 mm long; calyx lobes 1.5-3 mm long (from the pedicel insertion point to the apices of the lobes); corolla 2.5-6.3 (-7.6) mm wide; some stem leaves petiolate
1 Nutlets 5-8.7 mm long, calyx lobes 2-5 mm, slightly accrescent up to 6.2 mm in fruit; corolla 6-12 (-16) mm wide; all stem leaves clasping or sessile