Difference between revisions of "Inula"
Sp. Pl. 2: 881. 1753.
Gen. Pl. ed. 5, 375. 1754.
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|distribution=Old World. | |distribution=Old World. | ||
| + | |introduced=true | ||
|discussion=<p>Species ca. 100 (3 in the flora).</p><!-- | |discussion=<p>Species ca. 100 (3 in the flora).</p><!-- | ||
| − | --><p>The three species in the flora are probably escapes from cultivation. Formerly, Inula was circumscribed more broadly.</p> | + | --><p>The three species in the flora are probably escapes from cultivation. Formerly, <i>Inula</i> was circumscribed more broadly.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1753;1754 | |publication year=1753;1754 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_793.xml |
|tribe=Asteraceae tribe Inuleae | |tribe=Asteraceae tribe Inuleae | ||
|genus=Inula | |genus=Inula | ||
Latest revision as of 19:56, 5 November 2020
Perennials [annuals], 20–200 cm. Leaves basal (usually withering before flowering) and cauline; petiolate (proximal) or sessile (distal); blade margins usually serrate to dentate, sometimes entire. Heads radiate [disciform, discoid], borne singly or in open, corymbiform arrays. Involucres hemispheric or campanulate, [5–]10–40 mm diam. Phyllaries persistent, in 4–7+ series. Receptacles flat or convex, smooth or alveolate, epaleate. Ray florets (15–)50–150+, pistillate, fertile; corollas yellow [orange], laminae 10–30+ mm. Disc florets mostly (50–)100–250+; corollas yellow, lobes 5. Cypselae ± columnar (subterete) or prismatic (± 4–5-ribbed or -angled); pappi persistent, of basally connate, barbellate bristles or setiform scales in 1 series. x = 8, 9, 10.
Distribution
Introduced; Old World.
Discussion
Species ca. 100 (3 in the flora).
The three species in the flora are probably escapes from cultivation. Formerly, Inula was circumscribed more broadly.
Selected References
None.
Lower Taxa
Key
| 1 | Blades of basal (and proximal cauline) leaves 100–200 mm wide; involucres (20–)30–40 mm diam.; outer phyllaries 6–8(–20+) mm wide | Inula helenium |
| 1 | Blades of basal (and proximal cauline) leaves mostly 10–30 mm wide; involucres 7–15(–20) mm diam.; outer phyllaries mostly 0.5–2.5 mm wide | > 2 |
| 2 | Blades of cauline leaves lance-elliptic to lance-linear (venation not raised adaxially, reticulation not evident); outer phyllaries 4–6 × 0.5–0.8 mm | Inula britannica |
| 2 | Blades of cauline leaves broadly elliptic to lanceolate (venation raised adaxially, reticulation prominent); outer phyllaries 5–7 × 1.5–2.5 mm | Inula salicina |