Oenothera suffrutescens |
Oenothera mckelveyae |
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linda tarde, scarlet beeblossom, scarlet evening-primrose, scarlet gaura, wild honeysuckle |
Mckelvey's beeblossom |
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Habit | Herbs perennial, densely strigillose, sometimes also long-villous proximally, sometimes glabrate; from a deep, thick taproot, often with branching underground stems, or branching only at surface, these often becoming horizontal or nearly so and giving rise to new plants. | Herbs perennial, clumped, long-villous, more sparsely so distally, hairs erect, 2–4 mm, also strigillose, sometimes glabrate distally or also sparsely glandular puberulent; from twisted, woody rootstock. |
Stems | erect or ascending, usually many-branched, 10–120 cm. |
ascending, branched below or just above ground, branched also proximal to inflorescences, 30–70(–120) cm. |
Leaves | in a basal rosette (but not present at flowering) and cauline, 0.7–6.5 × 0.1–1.5 cm, blade linear to narrowly elliptic, margins entire or remotely and coarsely serrate. |
in a basal rosette and cauline, basal 3–17 × 0.8–2 cm, blade oblanceolate, cauline 1–6.5 × 0.1–1.5 cm, sessile, blade narrowly oblanceolate to elliptic, margins conspicuously sinuate-dentate, often undulate. |
Inflorescences | slender. |
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Flowers | 4-merous, zygomorphic, opening near sunset; floral tube 4–11(–13) mm; sepals 5–9(–10) mm; petals white, fading salmon pink to scarlet-red, slightly unequal, obovate to elliptic-obovate or elliptic, 3–7(–8) mm, abruptly clawed; filaments 3–6.5(–7) mm, anthers (2.5–)3–5(–5.5) mm; style 10–22 mm, stigma exserted beyond anthers at anthesis. |
4-merous, zygomorphic, opening near sunset; floral tube 2–3.5 mm; sepals 6–12 mm; petals white, fading dark pink to red, slightly unequal, elliptic-obovate, 7–11 mm, long-clawed; stamens presented in lower 1/2 of flower, filaments 5–9 mm, lanate at very base, anthers 2–4 mm, pollen 90–100% fertile; style 9–16 mm, stigma exserted beyond anthers at anthesis. |
Capsules | erect, pyramidal in distal 1/2 and abruptly constricted to terete proximal part, pyramidal part weakly or strongly angled, not conspicuously bulging at base, 4–9 × (1–)1.5–3 mm; sessile. |
reflexed, lanceoloid to narrowly ovoid, narrowly 4-winged, 8–19 × 1.5–2 mm, tapering to a sterile stipe 3–9 mm. |
Seeds | (1–)3 or 4, light to reddish brown, 1.5–3 × 1–1.5 mm. |
(1 or)2–4, 2–3 × 1 mm, yellowish to reddish brown. |
2n | = 14, 28, 42, 56. |
= 14. |
Oenothera suffrutescens |
Oenothera mckelveyae |
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Phenology | Flowering Apr–Aug(–Nov). | Flowering Mar–Jun. |
Habitat | Sandy or clay soil, often calcareous, desert shrublands to pinyon-juniper or oak woodlands, grasslands, disturbed areas. | Sandy soil. |
Elevation | 150–2000(–3000) m. (500–6600(–9800) ft.) | 0–300 m. (0–1000 ft.) |
Distribution |
AZ; CA; CO; IA; IL; IN; KS; MI; MN; MO; MT; ND; NE; NM; NV; NY; OK; SD; TX; UT; WI; WY; AB; BC; MB; ON; SK; Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Guanajuato, Hidalgo, Jalisco, México, Nuevo León, Oaxaca, Puebla, San Luis Potosí, Sonora, Tamaulipas, Veracruz, Zacatecas); introduced in South America (Brazil); Europe (Wales)
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TX; Mexico (Nuevo León, Tamaulipas) |
Discussion | Oenothera suffrutescens is naturalized sporadically in southern California (Los Angeles, San Diego, Santa Barbara, and Ventura counties; although native in eastern part of the state), Illinois, Indiana, Michigan, New York, southern Ontario, and Wisconsin. P. H. Raven and D. P. Gregory (1972[1973]) determined Oenothera suffrutescens to be self-incompatible and polyploid. It is known to form hybrids with O. calcicola and O. hispida. Schizocarya kunthii Spach is an illegitimate name based on Gaura epilobioides that pertains here. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Oenothera mckelveyae, on the Rio Grande Plain, is found in an area bounded by from Dimmit and LaSalle counties east to Karnes and Refugio counties in the north, southward through south Texas, extending to northeastern Tamaulipas and adjacent Nuevo León. P. H. Raven and D. P. Gregory (1972[1973]) found Oenothera mckelveyae to be self-incompatible. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 10. | FNA vol. 10. |
Parent taxa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Gaura > subsect. Campogaura | Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Gaura > subsect. Stipogaura |
Sibling taxa | ||
Synonyms | Gaura suffrutescens, G. bracteata, G. coccinea, G. coccinea var. arizonica, G. coccinea var. epilobioides, G. coccinea var. glabra, G. coccinea var. integerrima, G. coccinea var. parvifolia, G. epilobioides, G. glabra, G. induta, G. linearis, G. marginata, G. multicaulis, G. odorata, G. parvifolia, G. spicata | Gaura villosa var. mckelveyae, Gaura mckelveyae |
Name authority | (Seringe) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 214. (2007) | (Munz) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 213. (2007) |
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