Echium virescens var. angustissimum Christ in Bot. Jahrb. Syst. 9: 127. 1888 Echium virescens var. angustissimum Christ in Bot. Jahrb. Syst. 9: 127. 1888Taxon for this nameEchium virescens var. angustissimum Christ in Bot. Jahrb. Syst. 9: 127. 1888
