Flora of North America species comparison

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Eremothera boothii subsp. boothii

Eremothera boothii subsp. intermedia
Photo is of parent taxon

Booth's evening-primrose, Booth's mooncup, Booth's suncup
Photo is of parent taxon

Booth's hairy evening-primrose
Habit Herbs villous and glandular puberulent, especially in inflorescence. Herbs densely villous, also densely glandular puberulent, especially in inflorescence.
Stems

usually 15–60 cm.

5–20 cm.
Leaves

not especially clustered toward base, mostly evenly distributed, 1–6 × 0.6–2.2 cm;

petiole 0.1–2.6 cm;

blade narrowly lanceolate, narrowly ovate, or ovate to elliptic, margins coarsely serrulate to sinuate-toothed.

not especially clustered toward base, mostly evenly distributed, 2–5 × 0.3–1.5 cm;

petiole 0–1.5 cm;

blade narrowly elliptic to narrowly lanceolate or lanceolate, sometimes oblanceolate proximally, margins sparsely serrulate to sometimes sinuate-toothed.
Inflorescences

± open.

leafy.
Flowers

floral tube 4–8 mm;

petals white, 3.5–9 mm.

floral tube 3–5 mm;

petals white, 4–5 mm.
Capsules

slightly curved outward to contorted, 1.3–1.9 mm diam. near base.

usually curved outward or slightly contorted, 0.9–1.4 mm diam. near base.
Seeds

dimorphic.

dimorphic.

Eremothera boothii subsp. boothii

Eremothera boothii subsp. intermedia
Phenology Flowering Jun–Aug. Flowering late May–Aug(–Sep).
Habitat Sandy flats, steep loose slopes, sagebrush shrublands, Joshua tree and pinyon-juniper woodlands. Sandy or gravelly slopes and flats, sagebrush, shadscale, and rabbitbrush shrublands, pinyon-juniper woodlands.
Elevation 900–2400 m. (3000–7900 ft.) 1200–2000 m. (3900–6600 ft.)
Distribution
from FNA
AZ; CA; ID; NV; OR; WA
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Subspecies boothii is known from northwest Arizona; east-central California and west Nevada; south Idaho, east Oregon, south and east Washington.

Subspecies boothii intergrades broadly with subspp. alyssoides and intermedia in the Nevada portion of its range.

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

Subspecies intermedia is somewhat invariant; it bridges the morphological gap between subspp. alyssoides and boothii. It occurs in Nevada from southeastern Churchill and southern Lander counties south throughout Nye and Esmeralda counties and in southern Mineral County, in northeastern Inyo County, California, and in the Kingston Range, northeastern San Bernardino County, California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Eremothera > Eremothera boothii Onagraceae > subfam. Onagroideae > tribe Onagreae > Eremothera > Eremothera boothii
Sibling taxa
E. boothii subsp. alyssoides, E. boothii subsp. condensata, E. boothii subsp. decorticans, E. boothii subsp. desertorum, E. boothii subsp. intermedia
E. boothii subsp. alyssoides, E. boothii subsp. boothii, E. boothii subsp. condensata, E. boothii subsp. decorticans, E. boothii subsp. desertorum
Synonyms Sphaerostigma lemmoniia., S. senex Oenothera boothii subsp. intermedia, Camissonia boothii subsp. intermedia
Name authority unknown (Munz) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 209. (2007)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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