[The Genus Hesperochiron East of the Cascade Mts.]

Dwarf Hesperochiron

Hesperochiron pumilus

The photo above shows a close-up of dwarf hesperochiron as seen in moist meadows at Memaloose along Hat Pt. Road in Hells Canyon National Recreation Area...........June 28, 2007.

The photo at right shows a view of dwarf hesperochiron as seen along the north loop road of the Steens Mt..............late June, 1997.
Characteristics:

Dwarf hesperochiron is a small spring blooming perennial from 5 cm to 10 cm in height. The leaves are smooth and green, with ciliate margins, occasionally with short spreading hairs on the upper leaf surface.

This species generally has one to five flowers, with the corolla white or white with puplish linear markings running parallel to the axis of the petals. Individual flowers are saucer-shaped or rotate, with the lobes or free parts of the petals much longer than the central tube. Individual flowers are from 1.5 to 3 cm wide. The central tube is densely yellow haired.

Dwarf hesperochiron is similar to California hesperochiron Hesperochiron californicus, although the latter usually has more flowers (greater than 5) which are campanulate or funnelform, with the lobes about the same length as the tube. The latter plant also is found in more alkaline areas in the foothills and valleys.


Habitat:

Dwarf hesperochiron is plant of moist, open slopes, meadows, and swales. It may be found in the valley bottoms, but is more common in the uplands......the foothills and well up into the mountains. Where it occurs, it is frequently very numerous.


Range:

Dwarf hesperochiron is found wholly east of the Cascade Mt. range, from central Washington south through Oregon to California, and eastward to the western edge of Montana, then south to Utah, Colorado, and Arizona.


The photo above shows a close-up side-view of the saucer-shaped flower of dwarf hesperochiron as seen at a rocky meadow near 2800' along road K6000 on the eastern slopes of Mt. Adams...........May 6, 2006.

The photo above shows a close-up of dwarf hesperochiron as seen in moist meadows at Memaloose along Hat Pt. Road in Hells Canyon National Recreation Area...........June 28, 2007.

The photo above shows a close-up of dwarf hesperochiron as seen in moist meadows at Memaloose along Hat Pt. Road in Hells Canyon National Recreation Area...........June 28, 2007. Also in bloom at lower right is threeleaf lewisia (Lewisia triphylla).

The photo above shows a close-up of the flower of dwarf hesperochiron as seen at Wilson Creek, a BLM site about 10 miles southwest of Wilbur, WA.....................April 30, 2007.

The photo above shows a close-up of the flower of dwarf hesperochiron as seen at Wilson Creek, a BLM site about 10 miles southwest of Wilbur, WA.....................April 30, 2007.

Dwarf hesperochiron from Fremont Point, Winter Ridge, above Summer Lake, OR..........late May, 1996.

Paul Slichter