Flora of North America species comparison

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Eremothera boothii subsp. boothii
Photo is of parent taxon

Booth's evening-primrose, Booth's mooncup, Booth's suncup
Habit Herbs villous and glandular puberulent, especially in inflorescence.
Stems

usually 15–60 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.
Inflorescences

± open.
Flowers

floral tube 4–8 mm;

petals white, 3.5–9 mm.
Capsules

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

dimorphic.

Eremothera boothii subsp. boothii
Phenology Flowering Jun–Aug.
Habitat Sandy flats, steep loose slopes, sagebrush shrublands, Joshua tree and pinyon-juniper woodlands.
Elevation 900–2400 m. (3000–7900 ft.)
Distribution
from FNA
AZ; CA; ID; NV; OR; WA
[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.)
Source FNA vol. 10.
Parent taxa 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
Synonyms Sphaerostigma lemmoniia., S. senex
Name authority unknown
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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