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Photo is of parent taxon

Bailey's ivesia

Photo is of parent taxon

Bailey's ivesia, Owyhee ivesia

Basal leaves

sheathing base densely glandular abaxially, sometimes sparsely strigose.

sheathing base sparsely glandular abaxially, otherwise glabrous.

Pedicels

2–5 mm at flowering, to 12 mm in fruit.

5–6+ mm at flowering, to 15(–30) mm in fruit.

Flowers

(1–)5–30, 4–7 mm diam.;

epicalyx bractlets broadly lanceolate to ovate, 1.2–2.5 mm, ± 3/4 to as long as sepals;

hypanthium interior yellow to golden;

sepals (2–)2.5–4 mm;

petals pale yellow;

filaments yellow, anther margins not reddish.

5–40, 7–10 mm diam.;

epicalyx bractlets narrowly lanceolate, 0.8–1 mm, usually less than 1/2 as long as sepals;

hypanthium interior pale green or cream to maroon;

sepals (1.2–)1.5–2.5 mm;

petals white;

filaments white, anther margins reddish.

Achenes

± 1.5 mm, smooth.

± 2 mm, rugose.

2n

= 28.

Ivesia baileyi var. baileyi

Ivesia baileyi var. beneolens

Phenology Flowering summer. Flowering summer.
Habitat Crevices on north-facing cliffs or similarly protected sites in canyons and on rocky outcrops mainly of volcanic origin, in sagebrush communities, conifer woodlands Crevices on north-facing cliffs or similarly protected sites in canyons and rocky outcrops mainly of volcanic origin, in sagebrush communities, conifer woodlands
Elevation 1300–2600 m (4300–8500 ft) 1000–2600 m (3300–8500 ft)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
CA; ID; NV; OR
[BONAP county map]
Discussion

Of conservation concern.

Variety baileyi occurs from Lassen and Plumas counties, California, to Churchill, Humboldt, and Pershing counties, Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Variety beneolens occurs from Harney and Malheur counties, Oregon, to Modoc County, California, and to Elmore, Owyhee, and Twin Falls counties, Idaho, and Elko and Humboldt counties, Nevada. Plants are particularly common on the vertical sides of the river canyons that cut through the Owyhee Plateau. The variety also barely enters the Idaho Batholith on volcanic intrusions along the South Fork of the Boise River.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 9, p. 226. FNA vol. 9, p. 226.
Parent taxa Rosaceae > subfam. Rosoideae > tribe Potentilleae > Ivesia > sect. Setosae > Ivesia baileyi Rosaceae > subfam. Rosoideae > tribe Potentilleae > Ivesia > sect. Setosae > Ivesia baileyi
Sibling taxa
I. baileyi var. beneolens
I. baileyi var. baileyi
Synonyms Horkelia beneolens
Name authority unknown (A. Nelson & J. F. Macbride) Ertter: Syst. Bot. 14: 236. (1989)
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