[Owl-clovers East of the Cascade Mountains of Oregon and Washington]

Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover

Orthocarpus luteus

A portion of the inflorescence of Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover: Orthocarpus luteus

A close-up of a portion of the inflorescence of yellow owl-clover as seen along Forest Service Road #1647 in southeastern Logan Valley, Malheur National Forest.......July 18, 2010.

Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover: Orthocarpus luteusThe photo at right shows yellow owl-clover as seen at Arsenic Meadows at the eastern edge of the Bob Marshall Wilderness in Montana........July 24, 1999. Note the linear-lanceolate stem leaves.
Characteristics:

Yellow owl-clover is an attractive annual wildflower with slender, erect, simple or sparsely-branched stems from 10-35 cm high. The leaves are all on the stems and are narrowly linear-lanceolate in shape with entire margins. They are 1.5-3.5 cm long.

The inflorescence is narrow and loose below, and about 10 cm long. The bracts are shorter an wider than the leaves and 3-parted, the lobes arising near the base of the bract. The lower bracts are 2.5-3 cm long, the upper are much shorter. The calyx is 6-8 mm long and equally cleft about one third of its length. The deep yellow corolla is 9-12 mm long, the tube gradually widening to the funnel-like throat. The upper lip is 2-4 mm long and is short in broad in outline. The lower lip is slightly expanded and about the same length as the upper lip.


Habitat:

Yellow owl-clover may be found in open grassy to sagebrush meadows and open stands of aspen.


Range:

Yellow owl-clover may be found from British Columbia south to the east of the Cascade Mts. to Mono and Fresno Counties in California and east Michigan, Minnesota, Nebraska, Colorado and northern New Mexico.


Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover: Orthocarpus luteus - Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover: Orthocarpus luteus - Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover: Orthocarpus luteus

Additional photos (left and center) of yellow owl-clover as seen along Forest Service Road #1647 in southeastern Logan Valley, Malheur National Forest........July 18, 2010. The photo at right shows yellow owl-clover as seen in drying meadows near the junction of Forest Roads 42 and 4240, Ochoco National Forest.........July 13, 2017.

Inflorescence of Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover: Orthocarpus luteus - Inflorescence of Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover: Orthocarpus luteus

Yellow owl-clover blooming in the uplands immediately south of Summit Prairie, Malheur National Forest..........August 10, 2015.

Yellow Owl-clover, Yellow Owl's-clover, Golden-tongue Owl-clover: Orthocarpus luteus

The photo above shows a close-up of the inflorescence of yellow owl-clover as seen at Arsenic Meadows at the eastern edge of the Bob Marshall Wilderness in Montana........July 24, 1999.

Paul Slichter