Difference between revisions of "Oenothera hartwegii subsp. filifolia"
Syst. Bot. Monogr. 83: 212. 2007.
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Latest revision as of 21:02, 7 June 2022
Herbs glandular puberulent throughout, more densely so on distal parts, sometimes also sparsely strigillose on ovaries and leaves. Leaves 0.3–4 × 0.04–0.3 (–0.4) cm, fascicles of small leaves to 1.5 cm often present in axils; blade filiform to narrowly lanceolate, base attenuate, margins entire or remotely serrulate, sometimes undulate. Flowers: buds with free tips 0.5–4 mm; floral-tube 16–50 mm; sepals 7–17 mm; petals 12–23 mm; filaments 6–13 mm, anthers 6–11 mm; style 26–60 mm. 2n = 14.
Phenology: Flowering May–Oct.
Habitat: Highly local, often abundant, almost always on semiarid gypsum flats, dunes, or outcrops, with Juniperus, Larrea, and Yucca.
Elevation: 600–1900 m.
Distribution
N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Zacatecas)
Discussion
Subspecies filifolia occurs in Otero and Torrance counties in southeastern New Mexico, south and east through the Trans-Pecos and southern Panhandle of Texas to Cottle County in Texas, and southward from widely scattered localities in central Chihuahua, Coahuila, and Zacatecas, Mexico.
Selected References
None.
Lower Taxa
No values specified.