Leaf Characteristics What you need to know to identify plants
Wildland Plant Identification REM 252 Leaf & Stem Arrangement
Basal Alternate Opposite Whorled Fascicled
basal Alternate Opposite Whorled Leaf & Stem Arrangement
Basal Basal Opposite Arrangement: Agoseris glauca Alternate Whorled Fascicled
Fascicled: Pinus edulis Leaf Arrangements
Alternate Opposite Whorled Leaf Arrangement
Opposite
Alternate
Whorled Leaf Attachment
Clasping Sessile Petiolate Sheathing Petiolate
Sheathing Clasping
Sessile Leaf Type: Simple or Compound Leaf Types
Simple
Compound
Palmately Compound Pinnately Compound Compound Leaves
Palmate
Pinnate Simple Leaves
uptreeid.com
gobotany.com uptreeid.com Leaf Shapes
Linear Elliptic Lanceolate Oblanceolate
Ovate Obovate Palmate Wedge-shaped Arrow-shaped Leaf Shapes
Elliptic Lanceolate Oblanceolate Arctostaphylos pungens Linear Senecio serra Hymenoxys hoopesii Salix exigua
Obovate Ovate Arctostaphylos Palmate Wedge-shaped Arrow-shaped Populus tremuloides Uva-ursi Acer glabrum Artemisia tridentata Balsamorhiza sagittata Leaf Shapes Fig. 11 Leaf Veinations
Parallel Pinnate Palmate Netted Palmate Venation
Pinnate Venation
Parallel Venation Netted Venation Leaf Margins
Pinnately Lobed Palmately Lobed
Entire Serrated Scalloped Toothed Leaf Margins
Pinnately Lobed Palmately Lobed Quercus gambelii Rubus parviflorus
Entire Serrated Scalloped Toothed Symphoricarpos albus Symphoricarpos occidentalis Amelanchier alnifolia Prunus virginiana More Leaf Margins
www.infovisual.info/01/011_en.html
If a leaf margin is very ragged and like it has been cut and sliced… then the margin would be called incised or divided. It could be palmately divided, pinnately divided or highly divided: More Leaf Margins If a leaf margin is very ragged and like it has been cut and sliced… then the margin would be called incised or divided.
It could be palmately divided, pinnately divided or simply “highly divided” Examples of Incised or Divided Leaf Margins
lucidcentral.org
greergardens.com Palmately Divided Maple (Acer sp.)
pnwherbaria.org Incised Highly Divided Common dandelion botany.0catch.com Queen Anne’s lace (Daucus carota) (Taraxacum officinale) Pinnately Divided Black mustard (Brassica nigra) Leaf Margins Fig. 13 in Brown Book Websites
http://www.pnwherbaria.org/ http://plants.usda.gov/java/ http://biology.burke.washington.edu/herbariu m/imagecollection.php http://idahograssbook.wix.com/close-up