[Hoarycress, Pepperweeds & Whitetops: The Genus Lepidium East of the Cascade Mountains of Oregon and Washington]

Globepodded Hoarycress, Globe-podded Hoarycress, Hairy Whitetop

Lepidium appelianum

Synonyms: Cardaria pubescens, Cardaria pubescens var. elongata, Hymenophysa pubescens

Globepodded Hoarycress, Globe-podded Hoarycress, Hairy Whitetop: Cardaria pubescens (Synonyms: Cardaria pubescens var. elongata, Hymenophysa pubescens, Lepidium appelianum)

Globepodded hoarycress from roadside near Blue Sky, Hart Mt. National Antelope Refuge.......July 5, 1996.

Characteristics:

Globepodded hoarycress is also known as Siberian mustard. It is a weedy perennial species with long, thick, spreading roots which give rise to new plants. The stems are branched above and range from 15-50 cm high and are covered with short, stiff hairs that give the plants a gray-green appearance. The stem leaves are linear to oblong, ranging from 1-6 cm long. The margins are sharply toothed and the bases of the upper leaves are heart-shaped and clasp the stem. Those leaves of the lower stems are short-petiolate.

The numerous racemes are short and dense at first, but elongate with age. The sepals are pubescent while the 4 white petals are each 2-3 mm long. The stems below the fruits are 6-10 mm long. The fruits are wide, ovoid silicles which are 3-4 mm long and are covered with short hairs.


Habitat:

Globepodded hoarycress is found in disturbed areas such as old fields, waste areas and along roadsides.


Range:

Globepodded hoarycress is a native of Eurasia. It may be found across much of the US and southern Canada.


Globepodded Hoarycress, Globe-podded Hoarycress, Hairy Whitetop: Cardaria pubescens (Synonyms: Cardaria pubescens var. elongata, Hymenophysa pubescens, Lepidium appelianum) - Globepodded Hoarycress, Globe-podded Hoarycress, Hairy Whitetop: Cardaria pubescens (Synonyms: Cardaria pubescens var. elongata, Hymenophysa pubescens, Lepidium appelianum)

Globepodded hoarycress observed just downstream of the Cottonwood Canyon State Park campground..........April 6, 2015.

Paul Slichter