View source for Oenothera howardii

{{Treatment/ID
|accepted_name=Oenothera howardii
|accepted_authority=(A. Nelson) M. E. Jones ex Prain in B. D. Jackson et al.
|publications={{Treatment/Publication
|title=Index Kew., suppl.
|place=3: 121. 1908
|year=1908
|other_info_on_pub=(as howardi)
}}
|basionyms={{Treatment/ID/Basionym
|name=Lavauxiahowardii a.
|authority=Nelson
|rank=species
|publication_title=Bot. Gaz.
|publication_place=34: 368.  1902
}}
|synonyms=
|hierarchy=Onagraceae;Onagraceae subfam. Onagroideae;Onagraceae tribe Onagreae;Oenothera;Oenothera sect. Megapterium;Oenothera howardii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Onagraceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Onagraceae subfam. Onagroideae]]</div><div class="higher-taxon"><small>tribe</small>[[Onagraceae tribe Onagreae]]</div><div class="higher-taxon"><small>genus</small>[[Oenothera]]</div><div class="higher-taxon"><small>section</small>[[Oenothera sect. Megapterium]]</div><div class="higher-taxon"><small>species</small>[[Oenothera howardii]]</div></div>
|volume=Volume 10
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>acaulescent or sometimes caulescent, moderately to densely strigillose and glandular puberulent, sometimes also sparsely to moderately hirsute; from a taproot, sometimes lateral roots producing adventitious shoots. <b>Stems</b> (when present) ascending, longer ones becoming decumbent, leafy, sometimes densely so, 0–10(–30) cm. <b>Leaves</b> in a basal rosette, sometimes also cauline, (6–)8.5–17(–23) × (0.5–)1–2(–3) cm; petiole 2–7.5 cm; blade usually oblanceolate, elliptic to narrowly oblong, rarely lanceolate, margins often undulate, entire or remotely and irregularly pinnately lobed mostly in proximal 1/2, rarely more regularly pinnately lobed and lobing extending to distal 1/2, sinuses usually extending less than 1/2 to midrib, lobes triangular to oblong or linear, (1–)4–9(–13) mm, apex acute to obtuse. <b>Flowers</b> usually 1 or 2, rarely more, opening per day near sunset, strongly and sweetly scented; buds with unequal free tips 1–3(–4) mm; floral tube (43–)60–110(–125) mm; sepals (30–)35–60(–80) mm; petals brilliant yellow, fading deep red, drying deep reddish purple to reddish brown, usually broadly obovate, rarely subrhombic, (30–)40–60(–73) mm, sometimes with a terminal tooth; filaments (19–)25–38 mm, anthers 10–17 mm; style(90–)110–145(–165) mm, stigma exserted beyond anthers at anthesis. <b>Capsules</b> leathery, ovoid, narrowly ovoid, or narrowly lanceoloid to broadly ellipsoid, winged, wings (2–)4–7(–11) mm wide, body (20–)25–50(–80) × 4–6 mm, dehiscent 1/4–1/3 their length; pedicel 2–6 mm. <b>Seeds</b> numerous, usually in 1 row per locule, rarely in 2 rows toward base, obovoid to subcuboid, 3–8 × 2.5–3.5 mm. <b>2n</b> = 28, 42, 56.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jul.
|habitat=Open or rocky areas, in shale, fine-textured sandstones, clays, gypsum, or limestone from High Plains grasslands, open sites in pinyon-juniper woodlands, ponderosa pine-Douglas fir forests.
|elevation=(1000–)1500–2300(–3000) m.
|distribution=Colo.;Kans.;Nev.;Utah;Wyo.
|discussion=<p>Oenotherahowardii is known from three disjunct areas: three collections on the High Plains (Baca and Otero counties, Colorado, and Hamilton County, Kansas); open yucca-juniper grassland, rocky slopes or disturbed areas on shale substrates along the Colorado counties of Boulder, Denver, Jefferson, and Larimer, and just over the state line in Wyoming; and, common to scattered, mostly on rocky slopes but also in shaded canyon sites on fine-textured red sandstones, clays, gypsum, chalky white degraded limestone or limestone in pinyon-juniper woodland to ponderosa pine-Douglas fir forest in southern Utah and eastern Nevada.</p><!--
--><p>A. Nelson intended to publish Lavauxia howardii as a new combination and base it on Oenothera howardii M. E. Jones (1893), which was not validly published at the time, but inadvertently published L. howardii as a new species. Oenothera howardii (A. Nelson) W. L. Wagner is an isonym.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Oenothera howardii
|authority=(A. Nelson) M. E. Jones ex Prain in B. D. Jackson et al.
|rank=species
|parent rank=section
|synonyms=
|basionyms=Lavauxiahowardii a.
|family=Onagraceae
|phenology=Flowering May–Jul.
|habitat=Open or rocky areas, in shale, fine-textured sandstones, clays, gypsum, or limestone from High Plains grasslands, open sites in pinyon-juniper woodlands, ponderosa pine-Douglas fir forests.
|elevation=(1000–)1500–2300(–3000) m.
|distribution=Colo.;Kans.;Nev.;Utah;Wyo.
|reference=None
|publication title=Index Kew., suppl.
|publication year=1908
|special status=
|source xml=https://xjsachs2@bitbucket.org/aafc-mbb/fna-data-curation.git/src/1f4bf54ae2f7dbd5376c45b4fe1b388e15b53086/coarse_grained_fna_xml/V10/V10_58.xml
|subfamily=Onagraceae subfam. Onagroideae
|tribe=Onagraceae tribe Onagreae
|genus=Oenothera
|section=Oenothera sect. Megapterium
|species=Oenothera howardii
}}<!--

-->[[Category:Treatment]][[Category:Oenothera sect. Megapterium]]