Oenothera hartwegii subsp. maccartii |
Oenothera hartwegii subsp. fendleri |
|
---|---|---|
Habit | Herbs usually sparsely strigillose, sometimes glandular puberulent. | Herbs usually glabrous throughout, sometimes glandular puberulent on distal parts, especially on ovaries. |
Leaves | 0.6–3.5 × 0.1–0.6 cm, fascicles of small leaves to 1.5 cm usually present in axils; blade usually narrowly lanceolate to lanceolate or oblanceolate, rarely linear, base attenuate, margins subentire or serrulate, usually crinkled-undulate or undulate. |
1–5 × 0.15–1 cm, fascicles of small leaves to 1 cm (when present); blade linear to oblanceolate or lanceolate, base attenuate to obtuse, rarely nearly clasping, margins entire or subentire, rarely undulate. |
Flowers | buds with free tips 1–6 mm; floral tube 17–45 mm; sepals 11–27 mm; petals 10–30 mm; filaments 6–12 mm, anthers 5–9 mm; style 25–60 mm. |
buds with free tips 0.5–3 mm; floral tube 30–50 mm; sepals 9–28 mm; petals 10–30 mm; filaments 5–12 mm, anthers 5–13 mm; style 40–75 mm. |
2n | = 14, 28. |
= 14. |
Oenothera hartwegii subsp. maccartii |
Oenothera hartwegii subsp. fendleri |
|
Phenology | Flowering Mar–Sep. | Flowering Apr–Oct. |
Habitat | Grasslands, sandy to gravelly soil, limestone, with Acacia, Larrea, Opuntia, Prosopis, and Yucca. | In scattered populations on clay or gravelly soil, sometimes calcareous, in grasslands, often with Juniperus and Prosopis, to woodlands with Juniperus, Pinus edulis, sometimes Pinus ponderosa. |
Elevation | 30–1500 m. (100–4900 ft.) | 300–2200 m. (1000–7200 ft.) |
Distribution |
TX; Mexico (Coahuila, Nuevo León, Tamaulipas) |
AZ; KS; NM; OK; TX; Mexico (Chihuahua) |
Discussion | Subspecies maccartii occurs on the south Texas Plains and along the Rio Grande from Kinney, Milam, Uvalde, and Val Verde counties south to southeastern Coahuila, central Nuevo León, and northwestern Tamaulipas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies fendleri is known from Barber, Comanche, and Morton counties, Kansas, south through western Oklahoma and scattered sites in the Texas Panhandle to eastern Chihuahua, central trans-Pecos Texas, central and western New Mexico, and east-central Arizona. It is the most distinctive subspecies in the complex. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 10. | FNA vol. 10. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Calylophus hartwegii var. maccartii | O. fendleri, Calylophus hartwegii subsp. fendleri, Galpinsia fendleri, G. hartwegii var. fendleri, O. hartwegii var. fendleri |
Name authority | (Shinners) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 212. (2007) | (A. Gray) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 212. (2007) |
Web links |