Difference between revisions of "Thymophylla tenuiloba"
Fl. S.E. U.S., 1295, 1341. 1903.
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>(rarely persisting), green, to 30 cm, glabrous or sparsely hirtellous. <b>Stems</b> decumbent to erect. <b>Leaves</b> mostly alternate (sometimes opposite at 1–3 proximal nodes); blades usually lobed, 12–28 mm overall, lobes 7–15, linear to filiform, pliable (blades mostly not lobed in var. wrightii). <b>Peduncles</b> 30–80 mm, glabrous or hirtellous. <b>Calyculi</b> of 3–8 deltate to subulate bractlets, lengths less than 1/2 phyllaries. <b>Involucres</b> obconic, 5–7 mm. <b>Phyllaries</b> 12–22, margins of outer distinct less than 1/5 their lengths, abaxial faces glabrous or sparsely hirtellous. <b>Ray</b> florets 10–21; corollas yellow-orange, laminae 4–10 × 1.5–3 mm. <b>Disc</b> florets 50–100+; corollas yellow, 2.5–4.5 mm (peripheral ± zygomorphic in some plants). <b>Cypselae</b> 2–3.5 mm; pappi of erose and/or aristate scales 0.7–3.5 mm.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>(rarely persisting), green, to 30 cm, glabrous or sparsely hirtellous. <b>Stems</b> decumbent to erect. <b>Leaves</b> mostly alternate (sometimes opposite at 1–3 proximal nodes); blades usually lobed, 12–28 mm overall, lobes 7–15, linear to filiform, pliable (blades mostly not lobed in <i></i>var.<i> wrightii</i>). <b>Peduncles</b> 30–80 mm, glabrous or hirtellous. <b>Calyculi</b> of 3–8 deltate to subulate bractlets, lengths less than 1/2 phyllaries. <b>Involucres</b> obconic, 5–7 mm. <b>Phyllaries</b> 12–22, margins of outer distinct less than 1/5 their lengths, abaxial faces glabrous or sparsely hirtellous. <b>Ray</b> florets 10–21; corollas yellow-orange, laminae 4–10 × 1.5–3 mm. <b>Disc</b> florets 50–100+; corollas yellow, 2.5–4.5 mm (peripheral ± zygomorphic in some plants). <b>Cypselae</b> 2–3.5 mm; pappi of erose and/or aristate scales 0.7–3.5 mm.</span><!-- |
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|publication year=1903 | |publication year=1903 | ||
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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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_597.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae | ||
Revision as of 16:35, 18 September 2019
Annuals (rarely persisting), green, to 30 cm, glabrous or sparsely hirtellous. Stems decumbent to erect. Leaves mostly alternate (sometimes opposite at 1–3 proximal nodes); blades usually lobed, 12–28 mm overall, lobes 7–15, linear to filiform, pliable (blades mostly not lobed in var. wrightii). Peduncles 30–80 mm, glabrous or hirtellous. Calyculi of 3–8 deltate to subulate bractlets, lengths less than 1/2 phyllaries. Involucres obconic, 5–7 mm. Phyllaries 12–22, margins of outer distinct less than 1/5 their lengths, abaxial faces glabrous or sparsely hirtellous. Ray florets 10–21; corollas yellow-orange, laminae 4–10 × 1.5–3 mm. Disc florets 50–100+; corollas yellow, 2.5–4.5 mm (peripheral ± zygomorphic in some plants). Cypselae 2–3.5 mm; pappi of erose and/or aristate scales 0.7–3.5 mm.
Distribution
Tex., n Mexico.
Discussion
Varieties 4 (4 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Leaf blades seldom lobed (linear to spatulate, usually entire, rarely with 3–5 toothlike lobes) | Thymophylla tenuiloba var. wrightii |
| 1 | Leaf blades lobed (lobes 7–15 linear) | > 2 |
| 2 | Pappi of 3–5-aristate scales | Thymophylla tenuiloba var. tenuiloba |
| 2 | Pappi of truncate to lanceolate and/or 1-aristate scales | > 3 |
| 3 | Pappi of 5 erose scales alternating with 5unequal, 1-aristate scales | Thymophylla tenuiloba var. treculii |
| 3 | Pappi of 5–10 lanceolate to muticous scales, all ± erose or 1–3, 1-aristate | Thymophylla tenuiloba var. texana |