A Grammatical Dictionary of Botanical Latin

Year: annus,-i (s.m.II), abl.sg. anno;

- die 5 Maii anni 1856 lectum, collected on day 5 of May of the year 1856; cf. age.

- rosulae anni praeteriti, rosettes of the past year; cf. annotinus, hornotinus.

- anno vertente, in the course of a year.

- plantae ultra annum viventes, plants surviving beyond a year (ultra = prep. + acc.)

NOTE: hornotinus,-a,-um (adj.A) refers to growth of the 'current season', that is belonging to the present year, or season, not a year old; annotinus,-a,-um (adj.A) indicates "a year old."

perennial, lasting throughout the year: perennis,-e (adj.B).

pertaining to one year: annalis,-e (adj.B).

pertaining to last year: annotinus,-a,-um (adj.A), q.v.

pertaining to the present year: hornotinus,-a,-um (adj.A).

lasting or continuing:

two years: biennis,-e (adj.B), also 'two years old.'

three years: triennis,-e (adj.B), also 'three years old.'

four years: quadriennis,-e (adj.B), also 'four years old.'

two years old, of two years, continuing for two years, biennial: bimus,-a,-um (adj.A).

Bryum bimum Schreb

lasting:

a space or period of two years, two years: biennium,-ii (s.n.II), abl. sg. biennio.

- ultra biennium, beyond two years (ultra = prep. + acc.) a space of three years, three years: triennium,-i (s.n.II), abl. sg. triennio. a period of four years, four years: quadriennium,-ii (s.n.II), abl. sg. quadriennio.