Flora of North America species comparison

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Eremothera boothii subsp. desertorum
Photo is of parent taxon

Booth's desert primrose
Habit Herbs strigillose and/or glandular puberulent, especially in inflorescence.
Stems

10–35 cm.
Leaves

often clustered toward base, 1–9 × 0.2–1.4 cm;

petiole 0–4.5 cm;

blade narrowly elliptic to narrowly ovate or oblanceolate, margins subentire to sparsely denticulate.
Inflorescences

relatively leafless.
Flowers

floral tube (2–)4–8 mm;

petals white, 3–7 mm.
Capsules

flexuous-contorted, apex often curved downward, 1–1.6 mm diam. near base.
Seeds

dimorphic.

Eremothera boothii subsp. desertorum
Phenology Flowering Apr–Aug.
Habitat Sandy or gravelly slopes and washes, creosote desert shrublands, pinyon-juniper woodlands.
Elevation 400–2400 m. (1300–7900 ft.)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Subspecies desertorum is intermediate geographically and morphologically between subspp. condensata and decorticans (P. H. Raven 1969). Populations from Inyo County, where they grow on limestone, have relatively small flowers and lax inflorescences, which gives them a distinctive appearance; these were named Oenothera boothii subsp. inyoensis. Very extensive intergradation between them and more typical subsp. desertorum caused Raven to consider them part of subsp. desertorum.

(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. boothii, E. boothii subsp. condensata, E. boothii subsp. decorticans, E. boothii subsp. intermedia
Synonyms Oenothera decorticans var. desertorum, Camissonia boothii subsp. desertorum, C. boothii var. desertorum, C. boothii subsp. inyoensis, O. boothii subsp. desertorum, O. boothii subsp. inyoensis
Name authority (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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