Conifer: Any of various mostly needle-leaved or scale-leaved, chiefly evergreen (dawn redwood is a deciduous conifer) cone bearing trees.
Cultivar: A plant that has been selected and given a unique name because of its particular characteristics. It will be distinct from other cultivars and can be reproduced reliably. The cultivar name always follows the botanical name in single quotes e.g. Ginkgo biloba ‘Saratoga’
Cycad: a group of plants that look like palms or ferns, but are neither, belonging to the division Cycadophyta.
Deciduous: Loses all leaves/needles in the fall and remains dormant through the winter. Summer deciduous refers to a species such as California buckeye that drops leaves in the summer and remains dormant until new leaves emerge in the early spring.
Evergreen: Retains most leaves/needles for more than one year.
Epicormic shoots: Latent buds that sprout along branches resulting from severe pruning or may indicate that a tree is stressed or in decline.
Generic cross: (intergeneric) A hybrid that results from parents of two different genera as in Chitalpa,
× Chitalpa tashkentensis. An × at the beginning of the botanical name indicates such a cross. If the hybrid is between two species the × is in the middle as in oracle oak, Quercus × morehus
Hybrid: The result of the crossing of two separate genera or species such as the cross between American sycamore and Asian sycamore that resulted in London Plane, Platanus x hispanica.
Marcescence: Dead leaves remain on the tree all winter until new leaves emerge in the spring.
Petiole: The small stalk that attaches the leaf blade to the branch.
Phyllode: a modified petiole that is wide and flat, and functions as a leaf.
Pollard: A pruning method which is initiated when a tree is young and entails cutting back scaffold branches to just a few feet from the trunk on a yearly basis when the tree is dormant. It results in the proliferation of small branches which give the tree a bushy but compact appearance.
Scaffold branches: The main branches of trees that emerge directly from the trunk.
Cultivar: A plant that has been selected and given a unique name because of its particular characteristics. It will be distinct from other cultivars and can be reproduced reliably. The cultivar name always follows the botanical name in single quotes e.g. Ginkgo biloba ‘Saratoga’
Cycad: a group of plants that look like palms or ferns, but are neither, belonging to the division Cycadophyta.
Deciduous: Loses all leaves/needles in the fall and remains dormant through the winter. Summer deciduous refers to a species such as California buckeye that drops leaves in the summer and remains dormant until new leaves emerge in the early spring.
Evergreen: Retains most leaves/needles for more than one year.
Epicormic shoots: Latent buds that sprout along branches resulting from severe pruning or may indicate that a tree is stressed or in decline.
Generic cross: (intergeneric) A hybrid that results from parents of two different genera as in Chitalpa,
× Chitalpa tashkentensis. An × at the beginning of the botanical name indicates such a cross. If the hybrid is between two species the × is in the middle as in oracle oak, Quercus × morehus
Hybrid: The result of the crossing of two separate genera or species such as the cross between American sycamore and Asian sycamore that resulted in London Plane, Platanus x hispanica.
Marcescence: Dead leaves remain on the tree all winter until new leaves emerge in the spring.
Petiole: The small stalk that attaches the leaf blade to the branch.
Phyllode: a modified petiole that is wide and flat, and functions as a leaf.
Pollard: A pruning method which is initiated when a tree is young and entails cutting back scaffold branches to just a few feet from the trunk on a yearly basis when the tree is dormant. It results in the proliferation of small branches which give the tree a bushy but compact appearance.
Scaffold branches: The main branches of trees that emerge directly from the trunk.