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    The genus was named by Stephan Endlicher (1804-1849). The Greek "thely" means "woman" and "pod" means "foot" or "tender", but the significance of these words as applied to the two plants shown on this page is lost in history.  Perhaps the long, slender pods reminded someone of the shape of a woman's foot.  Intermountain Flora indicates that the name refers to the stipe (the stalk) of the ovary.  Both Thelypodiums shown on this page inhabit occasionally moist, sandy areas.

 

Thelypodium laxiflorum
Brassicaceae (Mustard Family)

Foothills. Shrublands, openings. Summer, fall.
Prater Ridge Trail, Mesa Verde National Park, August 6, 2005.

This is a very noticeable, raggedy, gangly five foot tall plant with lovely violet/pink/white flowers in numerous terminal clusters.  Flowers are followed by two inch long, millimeter thin seed pods that arch (usually upward) and then droop from their weight like garden beans.  The pods are further distinguished by the constrictions between seeds that give the pod a spiral appearance.  Basal leaves are withered by flowering time and stem leaves are few.  The maroon-to-green stem itself often is bent over (as in this picture) by the weight of the flowers and seeds.

"Laxiflorum" is Latin for "loose flowers" referring to the open, airy clustering of the flowers.

Thelypodium laxiflorum
Brassicaceae (Mustard Family)

Foothills. Shrublands, openings. Summer, fall.
Upper Mule Canyon, Utah, October 23, 2006.

Marcus Jones collected this plant near Provo, Utah in 1895 but thought it was Thelypodium wrightii, a very similar species already named by Asa Gray in 1852 from a specimen collected by Charles Wright in Texas in 1849.  Ishan Al-Shehbaz, of the Missouri Botanical Garden and the University of Missouri in St. Louis, renamed the plant Thelypodium laxiflorum in 1973 from a specimen collected by L.C. Higgins in 1968 near Glenwood Springs, Colorado.

Thelypodium laxiflorum
Brassicaceae (Mustard Family)

Foothills. Shrublands, openings. Summer, fall.
Upper Mule Canyon, Utah, October 23, 2006.

Thelypodium laxiflorum
Brassicaceae (Mustard Family)

Foothills. Shrublands, openings. Summer, fall.
Prater Ridge Trail, Mesa Verde National Park, August 6, 2005.

Thelypodium laxiflorum
Brassicaceae (Mustard Family)

Foothills. Shrublands, openings. Summer, fall.
Prater Ridge Trail, Mesa Verde National Park, August 6, 2005.

 

Thelypodium integrifolium
Brassicaceae (Mustard Family)

Semi-desert, foothills. Shrublands, openings. Summer, fall.
Big Spring Trail, Canyonlands National Park, Utah, September 10, 2005.

You get noticed when you grow to nine feet tall and have multiple flower heads that look like bottle brushes.  Thelypodium integrifolium stems are maroon-to-green, leaves are narrow and long, flowers are raggedy, and seed pods are numerous and up-curved.

"Integrifolium" is Latin for "whole leaf", perhaps referring to the smooth margins of Thelypodium integrifolium leaves.

Thomas Nuttall collected the first specimen of this plant on his 1834-1837 trip across the Louisiana Territory with the Wyeth Expedition.  He named the plant Pachypodium integrifolium in 1838.  It was renamed Thelypodium integrifolium in 1842 by the Austrian botanist Stephan Endlicher.

Thelypodium integrifolium
Brassicaceae (Mustard Family)

Semi-desert, foothills. Shrublands, openings. Summer, fall.
Big Spring Trail, Canyonlands National Park, Utah, September 10, 2005.

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