Salvia rosmarinus (rosemary), widespread in the Mediterranean region, and
Salvia jordanii (formerly
Rosmarinus eriocalyx), native to northwest Africa and southern Spain have long been widely recognized.
Salvia granatensis (formerly
Rosmarinus tomentosus) was first recognized as a separate species in 1941.
Rosmarinus palaui was first described as a species in 2002, although recognition of this species remains controversial. Recent research has indicated that while
S. granatensis forms a
monophyletic group, this group is nested within a
paraphyletic S. jordanii.
Salvia jordanii differs from the well-known herb rosemary in its smaller
leaves, only long and less than broad, and densely hairy flower stems. It also tends to be lower-growing, often under tall and prostrate, and never exceeding tall (
S. rosmarinus can reach , exceptionally , tall). Rosemary can be propagated from seed or cuttings in summer, and can be spread by carelessly discarding garden waste. ==Species==