The Red Fir Forest

Leaf Shape Terms

Leaf Shape

Ovate

Ovate leaves are shaped like an egg, with the broader end of the leaf nearest the petiole.

Pennyroyal and Mountain Spiraea leaves tend to be ovate.

Obovate

Obovate leaves are shaped like an egg, with the broader end of the leaf farthest from the petiole.

Mountain Pride leaves and Mousetail Ivesia petals are obovate.

Spatulate

Spatulate leaves are broadly rounded at the apex and gradually curve down toward the base.

Pussy Paws and Lambstongue Groundsel provide examples of spatulate leaves.

Round

Round leaves are broadly rounded at the apex and the base.

Mountain Jewel Flower has rounded leaves and Mousetail Ivesia has rounded petals.

Cordate

Cordate leaves are shaped like hearts. The stem is attached at the wide end of the leaf.

Yellow Pond-lily and Spreading Dogbane have heart-shaped leaves.

Obcordate

Obcordate leaves are shaped like hearts. The stem is attached at the narrow end of the leaf.

Drummond's Cinquefoil has heart-shaped petals.

Elliptic

Elliptic leaves are about twice as long as broad. The broadest part is in the middle and the two ends narrow equally.

Corn Lily and Spreading Dogbane leaves are often elliptic.

Lanceolate

Lanceolate leaves are significantly longer than wide and widest below the middle, gradually tapering toward the apex.

The Stickseed and Elephanthead Lousewort leaves are lanceolate.

Oblanceolate

Obanceolate leaves are significantly longer than wide and widest above the middle, gradually wideninging toward the apex.

Alpine Shooting Star and Whitney's Dealbata leaves are oblanceolate.

Oblong

Oblong leaves almost resemble a rectangle, except that their corners are rounded. They are at least twice as long as they are wide.

Shaggy Hawkweed and Anderson's Thistle leaves are oblong.

Linear

Linear leaves are more than twelve times longer than wide. They are long and narrow with more or less parallel margins or sides.

The Alpine Shooting Star, Whorled Penstemon and Pearly Everlasting have linear leaves.

Needlelike

Needlelike leaves are like needles.

Needle Navarretia and Red Heather have needlelike leaves.