Sinosenecio

B. Nordenstam

Opera Bot. 44: 48, figs. 22F-K, 23. 1978.

Etymology: Greek Sino- , pertaining to China, and generic name Senecio
Treatment appears in FNA Volume 20. Treatment on page 618. Mentioned on page 542, 619.
 TaxonIllustrator 
FNA20 P66 Tephroseris palustris.jpegTephroseris palustris
Sinosenecio newcombei
Parasenecio auriculatus
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Perennials, 10–30 cm (glabrous or sparsely tomentose; caudices sometimes rhizomatous, sometimes fibrous-rooted). Stems single or loosely clustered, erect. Leaves basal and cauline (sometimes mostly basal, distal usually smaller, bractlike); alternate; petiolate (petioles sometimes proximally dilated, ± sheathing stems, distally not winged); blades palmately or subpalmately nerved, ovate to subreniform [orbiculate to deltate], margins lobulate-dentate [dentate, denticulate, entire], faces glabrous or sparsely arachnose to tomentose. Heads radiate, borne singly [in corymbiform to paniculiform arrays]. Calyculi 0 (cauline bractlets sometimes approaching bases of heads). Involucres campanulate to hemispheric, [3–] 6–10+ mm diam. Phyllaries persistent, usually 8 or 13 in (1–) 2 series, erect (reflexed in fruit), distinct [basally connate], ± lanceolate, equal, margins ± scarious. Receptacles flat to convex, smooth [foveolate, sometimes setaceous], epaleate. Ray-florets 8–13, pistillate, fertile; corollas yellow to orange-yellow (sometimes drying pink). Disc-florets [20–] 30–60+, bisexual, fertile; corollas yellow to orange-yellow, tubes shorter than or equaling funnelform [campanulate] throats, lobes 5, erect or recurved, lance-deltate; style-branches: stigmatic areas continuous [in 2 lines], apices rounded-truncate. Cypselae ± columnar to prismatic, 5-ribbed or 10-ribbed or nerved, glabrous [puberulent]; pappi persistent (fragile [readily falling]), of 40–60, white, barbellulate to smooth bristles [absent on ray cypselae]. x = 24.

Distribution

B.C., mostly e Asia, chiefly China and Korea

Discussion

Species ca. 30 (1 in the flora).

Selected References

None.

... more about "Sinosenecio"
not tailed +, rounded +  and obtuse +
papillate +
rounded-truncate +
scarious +
usually ovate +  and lance-linear +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John P. Janovec +  and Theodore M. Barkley† +
B. Nordenstam +
decurrent +
ovate;subreniform +
winged;nerved;ribbed +
barbellulate +  and smooth +
yellow +  and orange-yellow +
10-ribbed or nerved +  and 5-ribbed +
less columnar +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
B.C. +, mostly e Asia +  and chiefly China and Korea +
Greek Sino- , pertaining to China, and generic name Senecio +
sparsely arachnose +  and tomentose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
campanulate;hemispheric +
cauline +  and basal +
recurved;erect +
lance-deltate +
2-carpellate +
persistent +
lanceolate +
unequal +  and subequal +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
papillate +
Compositae +
Sinosenecio +
Asteraceae tribe Senecioneae +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
vine +, tree +, shrub +  and subshrub +