A Grammatical Dictionary of Botanical Latin

Primocane (Eng.noun), the first-year, usually flowerless, cane (shoot) of Rubus: primocanna,-ae (s.f.I), abl. sg. primocanna, nom. pl. primocannae, acc. pl. primocannas, dat. & abl. pl. primocannis [> L. primo-, first + canna,-ae, s.f.I, a reed, 'canna palustris,' a swamp reed]; cf. floricane; see cane (Eng.noun), see canna,-ae (s.f.I);

- primocannae aestate arcuatae autumno apice decumbentes ad 2 m. longae 1-5 cm. crassae teretes aculeis multis curvatis armatae, primocanes (biennial shoots in the first year) in summer arching in autumn at the tip decumbent to 2 m. long 1.5 cm. thick terete armed with prickles many curved.

- folia primocannarum magna 5-foliolata, leaves of primocanes large with 5 leaflets; primocanna is adopted here as being etymologically preferable to primocanus (s.m.II), nom. pl. primocani (which could mean 'the first grey hairs'), used by L. H. Bailey in Gentes Herb. 2:279 (1932) (Stearn).