Echium triste subsp. nivariense
Synonymy
Source: Valdés, B. & Raab-Straube, E. von (2011+): Boraginaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Echium triste subsp. nivariense in Lagascalia 2: 73. 1972
Content
Bibliography
A. Bramwell, D. 1972: A revision of the genus Echium in Macaronesia. – Lagascalia 2: 37-115 (as Echium triste var. gomeraeum)
B. Hansen, A. & Sunding, P. 1993: Flora of Macaronesia. Checklist of vascular plants. 4th revised edition. – Sommerfeltia 17 (as Echium triste var. gomeraeum)
C. Hansen, A. & Sunding, P. 1993: Flora of Macaronesia. Checklist of vascular plants. 4th revised edition. – Sommerfeltia 17 (as Echium triste var. nivariense)