Cyanthillium

Blume

Bijdr. Fl. Ned. Ind., 889. 1826.

Etymology: Origin uncertain probably Greek cyanos, blue, and anthyllion, little flower, alluding to corollas
Treatment appears in FNA Volume 19. Treatment on page 204. Mentioned on page 67, 201.

Annuals (perhaps persisting), 2–6(–12+) dm. Leaves mostly cauline (at flowering); petioles ± winged; blades ovate to trullate, deltate, oblanceolate, or spatulate, bases ± cuneate, margins serrate, apices rounded to acute, abaxial faces ± hirtellous to densely piloso-strigillose, resin-gland-dotted, adaxial faces ± scabrellous or glabrate. Heads discoid, ± pedunculate, not subtended by foliaceous bracts, (12–)40–100+ in ± corymbiform arrays (6–)10–15+ cm diam. Involucres ± campanulate to turbinate or hemispheric, 4–5 mm diam. Phyllaries 24–32+ in 3–4+ series, the outer subulate to lanceolate, inner ± lanceolate, all ± chartaceous, margins entire, tips apiculate to spinose, abaxial faces ± strigillose, ± resin-gland-dotted. Florets 13–20(–24+); corollas lavender to pink or purplish, tubes longer than funnelform throats, lobes 5, lance-linear, ± equal. Cypselae ± columnar, not ribbed, ± strigillose; pappi of ± 20 ± persistent outer scales, plus ± 20 caducous inner bristles. x = 9 (18?).

Distribution

Introduced; Fla., probably paleotropical in origin, now widely established in tropical and warm-temperate regions as naturalized ruderals.

Discussion

Species 1–2 (1 in the flora).

Selected References

None.

... more about "Cyanthillium"
John L. Strother +
Fla. +, probably paleotropical in origin +  and now widely established in tropical and warm-temperate regions as naturalized ruderals. +
Origin uncertain +  and probably Greek cyanos, blue, and anthyllion, little flower, alluding to corollas +
Bijdr. Fl. Ned. Ind., +
Compositae +
Cyanthillium +
Asteraceae tribe Vernonieae +