Difference between revisions of "Dieteria bigelovii"
Sida 20: 1394. 2003.
Basionym: Aster bigelovii A. Gray in War Department [U.S.], Pacif. Railr. Rep. 4(5): 97. 1857
Synonyms: Machaeranthera bigelovii (A. Gray) Greene
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|name=Aster bigelovii | |name=Aster bigelovii | ||
|authority=A. Gray | |authority=A. Gray | ||
| + | |publication_title=in War Department [U.S.], Pacif. Railr. Rep. | ||
| + | |publication_place=4(5): 97. 1857 | ||
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Biennials </b>or short-lived perennials. <b>Stems</b>, branches, and peduncles sometimes puberulent or canescent, stipitate-glandular. <b>Leaf</b> blades lanceolate to oblanceolate (linear to linear-oblanceolate in <i></i>var.<i> mucronata</i>), mid 20–80 × (2–)5–15 mm, margins entire to irregularly dentate or serrate, faces glabrous or puberulent, often sparsely stipitate-glandular; distal bases usually cordate to auriculate, clasping. <b>Involucres</b> broadly turbinate to hemispheric. <b>Phyllaries</b> in 5–10 series, spreading to reflexed, apices long-acuminate, 2–6 mm, herbaceous (acute to acuminate, 1–3 mm in <i></i>var.<i> commixta</i>), faces stipitate-glandular. <b>Receptacles</b> 4–9 mm diam. <b>Ray</b> florets pistillate, fertile; laminae blue to purple, 10–25 × 1–2 mm. <b>Disc</b> corollas 5–7(–8) mm. <b>Cypselae</b> sparsely appressed-hairy.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Biennials </b>or short-lived perennials. <b>Stems</b>, branches, and peduncles sometimes puberulent or canescent, stipitate-glandular. <b>Leaf</b> blades lanceolate to oblanceolate (linear to linear-oblanceolate in <i></i></i>var.<i><i> mucronata</i>), mid 20–80 × (2–)5–15 mm, margins entire to irregularly dentate or serrate, faces glabrous or puberulent, often sparsely stipitate-glandular; distal bases usually cordate to auriculate, clasping. <b>Involucres</b> broadly turbinate to hemispheric. <b>Phyllaries</b> in 5–10 series, spreading to reflexed, apices long-acuminate, 2–6 mm, herbaceous (acute to acuminate, 1–3 mm in <i></i></i>var.<i><i> commixta</i>), faces stipitate-glandular. <b>Receptacles</b> 4–9 mm diam. <b>Ray</b> florets pistillate, fertile; laminae blue to purple, 10–25 × 1–2 mm. <b>Disc</b> corollas 5–7(–8) mm. <b>Cypselae</b> sparsely appressed-hairy.</span><!-- |
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_905.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Dieteria | |genus=Dieteria | ||
Revision as of 18:45, 24 September 2019
Biennials or short-lived perennials. Stems, branches, and peduncles sometimes puberulent or canescent, stipitate-glandular. Leaf blades lanceolate to oblanceolate (linear to linear-oblanceolate in var. mucronata), mid 20–80 × (2–)5–15 mm, margins entire to irregularly dentate or serrate, faces glabrous or puberulent, often sparsely stipitate-glandular; distal bases usually cordate to auriculate, clasping. Involucres broadly turbinate to hemispheric. Phyllaries in 5–10 series, spreading to reflexed, apices long-acuminate, 2–6 mm, herbaceous (acute to acuminate, 1–3 mm in var. commixta), faces stipitate-glandular. Receptacles 4–9 mm diam. Ray florets pistillate, fertile; laminae blue to purple, 10–25 × 1–2 mm. Disc corollas 5–7(–8) mm. Cypselae sparsely appressed-hairy.
Distribution
w United States.
Discussion
Varieties 3 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Involucres hemispheric, widths 2–3 times heights; phyllaries 90–100, 0.5–1 mm wide (at midpoint), apices long-acuminate, 2–5 mm | Dieteria bigelovii var. mucronata |
| 1 | Involucres broadly turbinate to hemispheric, 1–2(–3) times heights; phyllaries 25–100, 1–2 mm wide (at midpoint), apices acute to long-acuminate | > 2 |
| 2 | Phyllaries 50–100, apices long-acuminate, 3–6 mm, ray florets 30–60 | Dieteria bigelovii var. bigelovii |
| 2 | Phyllaries 25–50, apices acute to acuminate, 2–4 mm; ray florets 12–30 | Dieteria bigelovii var. commixta |