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Penstemon digitalis Nutt. var. latifolius Rgl.
Genus:
Penstemon
Species:
digitalis var. latifolius
Author:
E.Regel
Published place:
St.Petersburg (Petropolitanus)
Published year:
1866
Published in:
E.Regel in: Index seminum, quae hortus botanicus imper. Petropolitanus pro mutua commutatione offert... 1866: 95
Original seen in:
Meise (BR); Leiden (L) photocopy; IDC microfiches (7888)
Notes:
