Flora of North America species comparison

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Soliva sessilis

carpet burrweed, carpet burweed, common soliva, field burrweed, lawn burrweed, lawn burweed, prickly soliva, South American soliva
Habit 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.
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.
Heads

mostly scattered along stems.
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.

Soliva sessilis
Phenology Flowering Mar–Jun(–Dec).
Habitat Disturbed sites, lawns, roadsides
Elevation 0–600 m (0–2000 ft)
Distribution
from FNA
AL; AR; CA; FL; GA; LA; MS; NC; OK; OR; SC; TX; VA; WA; BC; South America [Introduced in North America; introduced also in Europe]
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 19, p. 546.
Parent taxa Asteraceae > tribe Anthemideae > Soliva
Sibling taxa
S. anthemifolia, S. stolonifera
Synonyms S. daucifolia, S. pterosperma
Name authority Ruiz & Pavón: Syst. Veg. Fl. Peruv. Chil., 113, plate 24. (1798)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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