Difference between revisions of "Soliva sessilis"
Syst. Veg. Fl. Peruv. Chil., 113, plate 24. 1798.
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|publication year=1798 | |publication year=1798 | ||
|special status=Introduced;Illustrated | |special status=Introduced;Illustrated | ||
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|tribe=Asteraceae tribe Anthemideae | |tribe=Asteraceae tribe Anthemideae | ||
|genus=Soliva | |genus=Soliva |
Latest revision as of 20:57, 5 November 2020
Plants (1–)2–5(–25+) cm (high or across), ± villous, glabrescent (not stoloniferous, stems purplish, prostrate to ascending, often rooting at nodes). Leaves basal and cauline; blades ± oblanceolate, 1–2(–3)+ cm, 2(–3)-pinnati-palmately lobed. Heads mostly scattered along stems. Involucres 2–4(–5) mm diam. Pistillate florets 5–8(–17+) in 1–2+ series. Disc florets 4–8+; corollas 1.5–2.5 mm. Cypselae: bodies ± obovate to lanceolate, (1.5–)2.5–3+ mm, usually winged (wings entire or ± sinuate to incised, each shoulder usually distally projecting as spinelike tooth), faces glabrous or ± scabrellous to hirtellous; pappi 0 (persistent stylar sheaths indurate, spinelike, 1–2+ mm, erect or slightly inflexed). 2n = ca. 92 (as S. pterosperma), 110+ (from Portugal), 118–120.
Phenology: Flowering Mar–Jun(–Dec).
Habitat: Disturbed sites, lawns, roadsides
Elevation: 0–600 m
Distribution
Introduced; B.C., Ala., Ark., Calif., Fla., Ga., La., Miss., N.C., Okla., Oreg., S.C., Tex., Va., Wash., South America, introduced also in Europe.
Discussion
Selected References
None.