Lobed: show all. Leaves with distinct protrusions, either rounded or pointed. Pinnately lobed leaves have the lobes arranged on either side of a central axis like a feather. Palmately lobed leaves have the lobes spreading radially from a point, like fingers on a hand.
How do you identify a leaf?
- Determine the leaf type.
- Study the leaf arrangement.
- Identify the leaf shape.
- Analyze the leaf’s blade edges.
- Look at the leaf’s vein patterning.
- Check the leaf’s petiole, the stalk that connects the leaf to the tree.
- Record whether the leaf has a stipule.
- Write down the key physical traits of your leaf.
What are the two main leaf types?
The two main categories are simple leaves and compound leaves. A simple leaf has a single blade on its stalk and the stalk is attached to the plant body. A compound leaf is a leaf stalk that has more than one leaf blade on it, and the multiple leaf blades are called leaflets.
What does Palmately lobed mean?
Adj. 1. palmately-lobed – having lobes radiating from a central point. many-sided, multilateral – having many parts or sides. Based on WordNet 3.0, Farlex clipart collection.
Just so, what does lobed mean?
lobed in American English
1. having a lobe or lobes; lobate. 2. Botany (of a leaf) having lobes or divisions extending less than halfway to the middle of the base.
One may also ask, why are some leaves lobed?
So, lobed leaves may be selected for under certain environmental conditions. Lobed leaves may have greater hydraulic efficiency. For smaller veins, hydraulic pressure increases as they present an increased resistance to water flow. This places stress on the deliate outer leaf tissues.
What does lobe mean in medical terms?
Medical Definition of lobe
: a curved or rounded projection or division: as. a : a more or less rounded projection of a body organ or part the lobe of the ear. b : a division of a body organ (as the brain, lungs, or liver) marked off by a fissure on the surface.
Why do leaves have teeth?
Plants in drier regions seem to be better off if they have fewer teeth or are toothless. Another theory, proposed by Taylor Field at Taylor University, holds that leaf teeth serve as a sort of ‘release valve’ that prevents too much sap from collecting in the leaf.
What is the shape of a leaf?
Leaf shape can vary considerably. The most common shapes include oval, truncate, elliptical, lancolate, and linear. Leaf tips and bases may also be unique, with names based on their shapes.
Also, what does lobed mean on a leaf?
Noun. 1. lobed leaf – a leaf having deeply indented margins. foliage, leaf, leafage – the main organ of photosynthesis and transpiration in higher plants.
What is lobe in chemistry?
Illustrated Glossary of Organic Chemistry – Orbital lobe. Orbital lobe (lobe): A section of orbital bordered by one or more orbital nodes. The π orbital of ethylene has two orbital lobes (one shown in the red and the other in blue), and one orbital node (the plane which contains the atoms).
What is leaf type?
Leaf Type. Compound: The leaf is separated into distinct leaflets, each with its own small petiole (but without an axillary bud). Simple: The leaf may be lobed or divided, but does not form distinct leaflets. Petiole: The stalk of a leaf. Leaf blade: The broad, expanded part of a leaf.
What is lobe in antenna?
antenna lobe: A three-dimensional section of the radiation pattern of a directional antenna, bounded by one or more cones of nulls or by regions of diminished irradiance. (
What is a lobe in the brain?
Each side of your brain contains four lobes. The frontal lobe is important for cognitive functions and control of voluntary movement or activity. The parietal lobe processes information about temperature, taste, touch and movement, while the occipital lobe is primarily responsible for vision.
What is lobe in human body?
In anatomy, a lobe is a clear anatomical division or extension of an organ (as seen for example in the brain, lung, liver, or kidney) that can be determined without the use of a microscope at the gross anatomy level.
Is lobed a word?
adjective. having a lobe or lobes; lobate. (of a leaf) having lobes or divisions extending less than halfway to the middle of the base.
What plants have palmate leaves?
Think of maples (Acer species). These trees and shrubs, native to Asia, North America and Europe, all have palmate leaves. Perhaps the most common palmate plant in our landscapes is variegated dwarf schefflera ‘Trinette.
What is the meaning of lobe in biology?
Lobe. (Science: anatomy) a more or less well defined portion of any organ, especially of the brain, lungs and glands. Lobes are demarcated by fissures, sulci, connective tissue and by their shape.
What does a simple leaf look like?
A simple leaf is a single leaf that is never divided into smaller leaflet units. It is always attached to a twig by its stem or the petiole. The margins, or edges, of the simple leaf can be smooth, jagged, lobed, or parted. Lobed leaves will have gaps between lobes but will never reach the midrib.
What tree has a leaf with 5 points?
How do you know if a leaf is lobed?
Lobed leaves have distinct rounded or pointed projections, while unlobed leaves do not. Some lobed leaves are pinnate, meaning the lobes are located along a central axis, while others are palmate, meaning they radiate from a single point. Leaf lobes have their own veins, which connect to the midrib of the leaf.