Plant Terminology Flashcards
Plant definitions to help with ID
What does Basal Leaves mean?
an arrangement of leaves radiating from the base of the stem and usually placed close to the ground.
What does raceme mean?
a flower cluster with the separate flowers attached by short equal stalks at equal distances along a central stem. The flowers at the base of the central stem develop first.
What does glabrous mean?
Smooth or hair less
What are sepals?
Sepals are small, leaf-shaped, green-coloured and outermost part of the flower.
What are bracts?
a modified leaf or scale, typically small, with a flower or flower cluster in its axil. Bracts are sometimes larger and more brightly colored than the true flower, as in poinsettia.
what is this structure called?
Bract. Specifically a involucral bracts
what does Cyme mean?
a flower cluster with a central stem bearing a single terminal flower that develops first, the other flowers in the cluster developing as terminal buds of lateral stems.
What does Pinnately mean?
resembling a feather especially in having similar parts arranged on opposite sides of a long thin central part like a stem. a pinnate leaf. pinnately adverb.
What does corolla mean?
All of the petals of a flower are collectively known as the corolla.
What does calyx mean?
the sepals of a flower, typically forming a whorl that encloses the petals and forms a protective layer around a flower in bud.
What do pseudowhorled leaves look like?
pseudowhorled: of leaves, arranged in clusters on the stem, the clusters separated by regular intervals, usually produced behind a scaly bud.
Define sporophyll
A sporophyll is a leaf that produces spores.
What does involucres mean?
a whorl or rosette of bracts surrounding an inflorescence (especially a capitulum) or at the base of an umbel.
Label the following
Label the following
Define catkin
a flowering spike of trees such as willow and hazel. Catkins are typically downy, pendulous, composed of flowers of a single sex, and wind-pollinated.
How can you easily identify sedges?
Many sedges have triangular shaped stems, giving them edges. This is easily felt by rolling the stem between your fingers. They don’t have any nodes along their stems, and the stems are not hollow. Sedges with triangular stems have three ranked leaves, which means the leaves are arranged on all three sides of the stem.
What tree do these leaves belong to?
difference between alternatue and opposite leaved
In alternate-leaved plants, the leaves are single at each node and borne along the stem alternately in an ascending spiral. In opposite-leaved plants, the leaves are paired at a node and borne opposite to each other.
What does bramble mean?
a prickly scrambling vine or shrub
Whats the difference between a simple and a compound leaf
Simple is just one leaf whereas compound has many.
