distichous
/ˈdɪstɪkəs
/adjective Botany
(Of parts) arranged alternately in two opposite vertical rows.Castilla also has plagiotropic branches that are arranged continuously along monopodial trunks and bear distichous leaves....
- Poaceae species present a conserved distichous phyllotaxy (leaf position along the stem) and share common properties with respect to leaf initiation.
- Phyllotaxy ranges from distichous to having 56 rows of leaves and is not restricted to Fibonacci numbers.
Derivatives
distichously
- Leaves of this species are distichously arrayed on horizontal branches, and often hang down by 10-40° from the horizontal plane.
- Each floret is in the axil of a chaffy bract and these are arranged spirally or distichously in spikelets.
- These initials are distichously arranged as would be found in teosinte or lateral branches of the maize tassel.
Origin
Mid 18th century: via Latin from Greek distikhos (see distich) + -ous.