[Tidytips: The Genus Layia in the Columbia River Gorge of Oregon and Washington]

Whitedaisy Tidytips, White Daisy Tidytips, White Layia

Layia glandulosa

Synonyms: Layia glandulosa ssp. glandulosa, Layia glandulosa ssp. lutea

Whitedaisy Tidytips, White Daisy Tidytips, White Layia: Layia glandulosa (Synonyms: Layia glandulosa ssp. glandulosa, Layia glandulosa ssp. lutea)

White daisy tidytips as seen on sand dunes in north-south running valleys in the Goodnoe Hills of south-central Klickitat County, WA........April 20, 2011

Characteristics:

White layia is a branched annual with spreading hairs and glandular herbage. It ranges in height from 5-40 cm. The leaves are 1-6 cm long. They are narrow and pinnatifid or serrate to entire. The leaves are reduced in size on the stems.

The flower heads bear 8-9 broad white rays, 3-lobed at the tips. The rays are 4-15 mm long. The central disk is yellow and globose. The involucre is 6-9 mm tall and is both glandular and hairy. Flowers from April into July.


Habitat:

White layia is a plant of dry, open places in the deserts and foothills, often in sandy soil.


Range:

White layia is found from southern British Columbia south along the eastern edge of the Cascades and Sierra Nevada into Baja California, east to Idaho and New Mexico.

In the Columbia River Gorge, it is found from the mouth of the Deschutes River east.


Whitedaisy Tidytips, White Daisy Tidytips, White Layia: Layia glandulosa (Synonyms: Layia glandulosa ssp. glandulosa, Layia glandulosa ssp. lutea) - Whitedaisy Tidytips, White Daisy Tidytips, White Layia: Layia glandulosa (Synonyms: Layia glandulosa ssp. glandulosa, Layia glandulosa ssp. lutea)

White daisy tidytips blooming along Washington Highway 14 about one mile west of Rock Creek, Klickitat County, WA......May 2, 2019.

Whitedaisy Tidytips, White Daisy Tidytips, White Layia: Layia glandulosa (Synonyms: Layia glandulosa ssp. glandulosa, Layia glandulosa ssp. lutea) - Close-up of the involucral bracts of Whitedaisy Tidytips, White Daisy Tidytips, White Layia: Layia glandulosa (Synonyms: Layia glandulosa ssp. glandulosa, Layia glandulosa ssp. lutea) - Whitedaisy Tidytips, White Daisy Tidytips, White Layia: Layia glandulosa (Synonyms: Layia glandulosa ssp. glandulosa, Layia glandulosa ssp. lutea)

Additional close-ups of whitedaisy tidytips as seen on sand dunes in north-south running valleys in the Goodnoe Hills of south-central Klickitat County, WA........April 20, 2011.

Paul Slichter