Difference between revisions of "Neoholmgrenia hilgardii"
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|subfamily=Onagraceae subfam. Onagroideae | |subfamily=Onagraceae subfam. Onagroideae | ||
|tribe=Onagraceae tribe Onagreae | |tribe=Onagraceae tribe Onagreae | ||
Latest revision as of 10:33, 9 May 2022
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Herbs finely strigillose, more densely so distally, especially on ovary. Stems erect to ascending, capillary, 1–15 cm. Leaves linear to linear-oblanceolate, 1–3 × 0.1–0.3 cm. Flowers opening near sunrise; floral tube 1.5–2 mm; sepals 2–3 mm; petals 2.5–5 mm; episepalous filaments 2–4 mm, epipetalous filaments 1.5–2.8 mm, sometimes epipetalous stamens absent, anthers of longer stamens 0.7–0.8 mm, those of shorter ones 0.5–0.6 mm; style 4.5–6 mm, sparsely pubescent near base, stigma 0.7–0.8 mm diam., surrounded by anthers at anthesis. Capsules ascending, strongly flattened from unequal width of valves, 5–10 × 1–1.3 mm. Seeds 0.7–1.3 × 0.3–0.4 mm. 2n = 14.
Phenology: Flowering May–Jul.
Habitat: Sandy or clay soil, in sagebrush scrub.
Elevation: 0–500 m.
Discussion
Neoholmgrenia hilgardii is probably self-compatible but outcrossing. The species occasionally grows sympatrically with N. andina (P. H. Raven 1969). It is known from Chelan, Douglas, Grant, Kittitas, Okanagan, and Yakima counties, Washington. The species was collected twice along the lower Columbia River, at Bingen, Klickitat County, Washington, and Hayden Island, Multnomah County, Oregon.
Selected References
None.