leaves are placed singly along the stem but not opposite each other.
part of the stamen that produces pollen.
angle formed by the upper side of a leaf and the stem.
fleshy fruit (remaining closed when mature) with the seed or seeds surrounded
raised part on a flat surface - a knob or a stud.
outer, non-reproductive parts of a flower, composed of free or joined
dry fruit, opening naturally when mature, formed from an ovary with
spike-like, hanging group of single sex flowers (either male or female)
Leaf:- When the blade of a leaf is divided into
two or more separate leaflets, each with its own stalk, the leaf is
said to be compound. The leaflets themselves are not leaves and this
is shown by the absence of buds in their axils. The whole leaf can be
pulled off as one, leaving a well-defined scar on the stem.
reproductive structure of Coniferous trees (which have bare seeds ie.
not enclosed in an ovary).
plant bearing cones.
or shrubs which are cut to ground level every few years and then regrow
from the stumps into a clump of stems.
and shrubs that lose their leaves in autumn.
there are only male OR female flowers on the same plant. Compare this
tropical hardwood species of tree, often used for carving, with black
heart wood and light brown outer wood.
person who studies insects.
and shrubs which keep most of their leaves throughout the year.
to reproduce sexually.
cleft or crack.
abnormal growth of tissue formed in response by the tree to an attack
by certain insects, fungi, bacteria etc
small arachnid (a small animal with 8, jointed limbs) found in a gall.
organ producing a secretion.
projecting (often wooden) structure to stop sand shifting along a beach.
plant resulting from a cross between two or more plants, genetically
unlike e.g. a cross between two species in the same genus (or even in
different genera) eg Wild Plum
arrangement of flowers on the floral stem; a flower cluster.
insect in the stage between egg and pupa.
leaf-like part of a compound leaf.
pore in the stem that allows gases to pass between the outside atmosphere
and the interior of the plant
leaf which is more than twice as long as it is broad and is over 5mm
across (e.g. the leaves of Grey Willow )
rich soil of clay, sand and organic matter.
which are divided into segments with spaces between which do not reach
the centre. (There is no hard and fast distinction between lobes and
large teeth. See the page of lobed leaves )
middle and principle vein of a leaf.
there are both male and female flowers on the same plant. Compare with
short straight point e.g.Yew.
plant which is thoroughly established after introduction from another
leaf which is at least 7 times as long as it is broad and less than
4mm across. e.g.Austrian Pine
which are placed along a stem in pairs, one on each side.
leaf which is arranged like the fingers of a hand i.e. arising from
approximately the same point and spreading outwards.e.g. the leaves
leaf with separate leaflets along each side of a common stalk.
(The leaflets may be alternate
cut a tree 2.5-4m above the ground to produce a close rounded head of
with a soft down.
leaf which is less than twice as long as it is broad.
small leaf, usually paper-like, and often found covering buds, bulbs
leaf:-A leaf of one piece
leaf:-A leaf which is a sharp woody or hardened
spike e.g. Gorse.
of the male sex organs on a flower, usually consisting of anther and
to reproduce sexually.
tip of the style, usually enlarged, on which the pollen grains land
leafy outgrowth, often one of a pair, situated at the base of the leaf
longitudinal lines, grooves or ridges for example on or under bark.
often long, top part of the female sex organs that has the stigma at its
shoot which grows from underground.
acidic substance, soluble in water, with a bitter taste, that is present
in a number of plants, especially in the bark of Quercus (Oak).
compound leaf with three leaflets
art of clipping shrubs etc. into ornamental shapes e.g. Box and Yew.
bundle:-One of the strands of tissue that carry water
and nutrients within the plant, consisting of xylem on the inside and
phloem on the outside, separated by a layer of cambium.
strand of vascular tissue in a leaf or other flat organ.