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Glossary


Alternate leaves
arranged singly at different levels on the stem.

Aril
an expansion of the seed stalk, growing partly or completely over the seed, usually fleshy and often brightly coloured.

Buttress
extension of the base of the trunk of a tree, often flange-like.

Canopy
the upper cover of foliage of a plant community.

Capsule
a dry, usually many-seeded fruit of two or more chambers, breaking open at maturity.

Coppice
extra leafy shoots produced from the base of a tree.

Epiphyte
a plant growing upon another plant, but never parasitic.

Family
a group of related genera.

Genus (plural, genera)
a group of closely related species.

Gland
a small structure on the surface, or within the tissue of a leaf or other organ, which secretes such substances as nectar or oil.

Lichen
a combination of an alga and a fungus, in such close association as to form what appears to be a single individual.

Opposite leaves
arising at the same level but on opposite sides of the stem.

Sepal
one of the usually green outer segments surrounding a flower, usually collectively known as the calyx.

Shrub
a woody plant less than eight metres high, usually branching lowdown or with many stems.

Species
a distinct, recognizable kind of plant or animal.

Stamen
the male organ of a flower, consisting of a stalk and a pollenbearing anther.

Stipules
one, or one pair of appendages, sometimes leafy and often very small, at the base of the leaf stalk.

Tendril
part of a plant modified into a slender, elongate climbing organ.

Whorl
a group of three or more leaves or other structures, arising at the same point.