Oenothera deltoides |
Oenothera neomexicana |
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basket evening-primrose, birdcage evening primrose, desert lantern, devil's lantern, dune primrose, hairy evening primrose, lion-in-a-cage |
New Mexico evening-primrose |
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Habit | Herbs usually winter-annual, sometimes perennial, glabrous, glandular puberulent, strigillose, and/or villous, sometimes more villous distally, hairs sometimes very curly, especially on flower parts; from a taproot or relatively long, fleshy roots. | Herbs perennial, glabrate proximally, strigillose and villous distally; from a taproot, also with lateral roots producing adventitious shoots. | ||||||||||||||||
Stems | central stem usually erect, usually thickened at base and spongy, branched or unbranched, branches few–several, slender, decumbent to ascending, from base, usually encircling central stem in older plants, 10–40(–100) cm. |
erect or ascending, unbranched or branched, 30–60 cm. |
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Leaves | in a basal rosette and cauline, rosette usually well developed (except subsp. howellii), basal 5–25 × 1–5 cm, cauline 4–12(–18) × 0.5–4 cm; petiole 1.5–8 cm; blade rhombic-obovate, lanceolate, or oblanceolate, margins subentire, dentate, or pinnatifid. |
in a basal rosette and cauline, rosette weakly developed or absent, at least during flowering, 3–9 × (0.6–)1–2.5 cm; petiole 0–2 cm; blade oblong to lanceolate or narrowly ovate, margins irregularly sinuate-dentate. |
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Flowers | 1–several opening per day near sunset; buds nodding, weakly or strongly quadrangular or fluted in distal 1/2, with free tips 0–9 mm; floral tube 20–40 mm; sepals (13–)15–35 mm, not spotted; petals white, fading pink to deep pink, broadly obovate or obcordate, 15–44 mm; filaments 8–15 mm, anthers 5–14 mm; style 35–60 mm, stigma exserted beyond anthers at anthesis. |
1–several opening per day near sunset; buds nodding, weakly quadrangular, with free tips 0.5–4 mm; floral tube 30–50 mm; sepals 20–30 mm, not spotted; petals white, fading pink, broadly obovate, 20–30 mm; filaments 10–15 mm, anthers 8–15 mm; style 50–70 mm, stigma exserted beyond anthers at anthesis. |
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Capsules | spreading, straight to curved, becoming somewhat woody in age, cylindrical to slightly 4-angled, widest toward base, tapering from base to apex, (15–)30–80 × 1.5–5 mm; sessile. |
erect or strongly ascending, not woody, straight or slightly curved, subcylindrical, obtusely 4-angled, tapering gradually from base to apex, 20–30 × 2–3 mm; sessile. |
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Seeds | numerous, in 1 row per locule, buff with dark spots or black, narrowly obovoid, 1.5–2.8 mm. |
numerous, in 1 row per locule, dark brown, narrowly obovoid, 1.5 mm. |
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2n | = 14. |
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Oenothera deltoides |
Oenothera neomexicana |
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Phenology | Flowering (Mar–)Jun–Jul(–Sep). | |||||||||||||||||
Habitat | Uncommon, in rocky or sandy clay or loamy soil in coniferous forest openings, stream valleys, roadsides. | |||||||||||||||||
Elevation | 1500–3300 m. (4900–10800 ft.) | |||||||||||||||||
Distribution |
w United States; nw Mexico
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AZ; NM
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Discussion | Subspecies 5 (5 in the flora). Oenothera deltoides is self-incompatible or self-compatible (W. M. Klein 1964; W. L. Wagner et al. 2007; K. E. Theiss et al. 2010). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Oenothera neomexicana is known from central to western New Mexico west of the Rio Grande Valley, except for the Organ Mountains, and eastern and central Arizona from the White Mountains south to Mount Graham and northwestward across the Mogollon Rim in Coconino and Yavapai counties. Oenothera neomexicana had been assumed to be self-incompatible (W. L. Wagner et al. 2007), but K. E. Theiss et al. (2010) determined one population sampled to be consistently self-compatible. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 10. | FNA vol. 10. | ||||||||||||||||
Parent taxa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Anogra | Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Anogra | ||||||||||||||||
Sibling taxa | ||||||||||||||||||
Subordinate taxa | ||||||||||||||||||
Synonyms | Anogra deltoides | Anogra neomexicana | ||||||||||||||||
Name authority | Torrey & Frémont in J. C. Frémont: Rep. Exped. Rocky Mts., 315. (1845) | (Small) Munz: Amer. J. Bot. 18: 317. (1931) | ||||||||||||||||
Web links |