Arnoseris

Gaertner

Fruct. Sem. Pl. 2: 355, plate 157, fig. 3. 1791.

Etymology: Greek arnos, sheep, and seris, a kind of endive allusion unclear
Treatment appears in FNA Volume 19. Treatment on page 276. Mentioned on page 216.

Annuals, (5–) 10–30+ cm; taprooted. Stems 1–10+ (scapiform), erect, simple or branched distally, glabrous. Leaves mostly basal; obscurely petiolate; blades oblanceolate to spatulate, margins dentate (faces usually scabridulous, mostly near margins). Heads borne singly or (2–3) in loose, corymbiform arrays. Peduncles inflated (fistulose) distally, not bracteate. Calyculi 0 or of 1–10+, lanceolate bractlets. Involucres broadly campanulate or urceolate, 4–8 mm diam. Phyllaries 10–22+ in 1 (–2) series (basally connate), lanceolate to lance-linear (abaxially keeled proximally), equal or subequal, margins little, if at all, scarious, apices acuminate. Receptacles flat, pitted, glabrous, epaleate. Florets 20–50+; corollas yellow. Cypselae dark-brown, obovoid, not beaked, ribs 8–10 (3–5 stronger), stramineous, faces smooth or rugose between ribs, glabrous; pappi 0. x = 9.

Distribution

Introduced; Europe

Discussion

Species 1.

Selected References

None.

Lower Taxa

"fine" is not a number.

... more about "Arnoseris"
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
John L. Strother +
Gaertner +
decurrent +
compound +  and simple +
oblanceolate;spatulate +
tuberculate +, rugose +, muricate +  and smooth +
lanceolate +
filiform +
zygomorphic +, actinomorphic +  and (3-)5-merous +
Greek arnos, sheep, and seris, a kind of endive +  and allusion unclear +
rugose +  and smooth +
winged +  and beaked +
dispersed +
indeterminate +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
urceolate;campanulate +
divided +, lobed +  and dentate +
2-carpellate +
connate +  and distinct +
10 +  and 22 +
Fruct. Sem. Pl. +
flat;convex +
stramineous +
8 +  and 10 +
exalbuminous +
branched +  and simple +
1 +  and 10 +
appendaged +  and truncate +
papillate +
Undefined tribe Lactuceae +
Arnoseris +
Asteraceae tribe Cichorieae +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
shrub +  and subshrub +