Parasenecio

W. W. Smith & J. Small

Trans. & Proc. Bot. Soc. Edinburgh 28: 93, plate 3. 1922.

Etymology: Greek para, beside or near, and generic name Senecio
Treatment appears in FNA Volume 20. Treatment on page 619. Mentioned on page 543, 611, 620.
 TaxonIllustrator 
FNA20 P66 Tephroseris palustris.jpegTephroseris palustris
Sinosenecio newcombei
Parasenecio auriculatus
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Perennials, [20–] 60–120 [–200] cm (rhizomes fibrous-rooted; plants caulescent [subscapiform], glabrous or hairy). Stems usually 1, erect. Leaves basal and cauline; alternate; petiolate (petiole bases ± auriculate and clasping to sheathing; proximal and middle leaves largest); blades palmately nerved [and lobed], reniform to ± deltate [orbiculate, sometimes peltate], margins usually raggedly dentate, abaxial faces glabrous or puberulent (on veins) [puberulent to sericeous], adaxial glabrous. Heads discoid (nodding), in racemiform or subpaniculiform arrays. Calyculi 0 [present]. Involucres cylindric to weakly turbinate, 2–3+ mm diam. Phyllaries persistent, [3–] 5+ in 1–2 series, erect, distinct, oblong to linear, equal, margins ± scarious. Receptacles flat, smooth or foveolate, epaleate. Ray-florets 0. Disc-florets [1–] 4–7 [–20], bisexual, fertile; corollas white or ochroleucous [yellowish], tubes longer than funnelform throats, lobes 5, recurved or coiled, lance-linear to deltate; style-branches: stigmatic areas continuous, apices rounded-truncate. Cypselae ± ellipsoid, sometimes finely 10-ribbed, glabrous; pappi readily falling or fragile, of 100–120+, white [reddish], barbellulate bristles. x = 30.

Distribution

Alaska, mostly in ne Asia, especially China, Japan, and the Russian Far East

Discussion

Species ca. 60 (1 in the flora).

Species of this group were long treated in Cacalia; difficulties with the typification of that name led to its rejection (T. M. Barkley 1999). The genus Koyamacalia was erected by H. Robinson and R. D. Brettell (1973) for the Asiatic “core” of Cacalia, including the single species in the flora area; the name Parasenecio has priority.

Selected References

None.

... more about "Parasenecio"
puberulent +  and glabrous +
not tailed +, rounded +  and obtuse +
papillate +
rounded-truncate +
scarious +
usually ovate +  and lance-linear +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Theodore M. Barkley† +
W. W. Smith & J. Small +
decurrent +
reniform;more or less deltate +
winged;nerved;ribbed +
ochroleucous +  and white +
ellipsoid +
fertile +  and bisexual +
fertile +  and bisexual +
Alaska +, mostly in ne Asia +, especially China +, Japan +  and and the Russian Far East +
Greek para, beside or near, and generic name Senecio +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
cylindric;weakly turbinate +
cauline +  and basal +
lance-linear +  and deltate +
2-carpellate +
oblong +  and linear +
unequal +  and subequal +
Trans. & Proc. Bot. Soc. Edinburgh +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
foveolate +  and smooth +
conic;usually flat;convex +
exalbuminous +
appendaged +  and truncate +
papillate +
Compositae +
Parasenecio +
Asteraceae tribe Senecioneae +
120 cm1,200 mm <br />1.2 m <br /> (200 cm2,000 mm <br />2 m <br />) +
60 cm600 mm <br />0.6 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
vine +, tree +, shrub +  and subshrub +