Carrot-leaf Horkelia

Leonard and I just returned from a camping trip to Oregon where we hiked to the top of Upper Table Rock near Medford OR. We saw many wildflowers in bloom, including carrot-leaf horkelia (Horkelia daucifolia). The genus name of this member of the Rose Family (Rosaceae) honors Johann Horkel (1769 – 1846), a German plant physiologist, botanist and physician. The specific epithet means “carrot-like” in Latin.

Carrot-leaf horkelia is a native perennial arising from a branching caudex. The stems are reddish. This glandular plant has a basal rosette of leaves and alternate cauline leaves. The leaves are pinnately divided into 10 to 20 crowded leaflets. Each leaflet is divided three fourths of the way to the base.

The carrot-leaf inflorescence is a terminal cluster of crowded flowers. Each flower has five hairy sepals united at the base and narrow, pointed bractlets. The five white (drying to yellowish) petals are free. The flower has ten stamens and 5 to 15 pistils on the superior ovary. The fruits are dark brown achenes.

Carrot-leaf horkelia is endemic to the Klamath Mountains and surrounding ranges in Northern California and Southern Oregon. Often growing in serpentine soils, it can be found in grassy fields, mountain slopes and other open, dry places.

This entry was posted in Wildflowers and tagged , . Bookmark the permalink.