Rugelia

Shuttleworth ex Chapman

Fl. S.E. U.S., 246. 1860.

Common names: Rugelia Rugel’s ragwort winter well
Etymology: For Ferdinand Ignatius Xavier Rugel, 1806–1878, original collector of the species
Treatment appears in FNA Volume 20. Treatment on page 625. Mentioned on page 543.
 TaxonIllustrator 
FNA20 P68 Rugelia nudicaulis.jpegRugelia nudicaulis
Cacaliopsis nardosmia
Luina hypoleuca
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Linny Heagy

Perennials, 20–40 (–50) cm (rhizomes creeping, roots fibrous, branched). Stems 1 (–3), erect (scapiform, sparsely arachnoid, unevenly glabrescent proximally, hirsute and/or stipitate-glandular distally). Leaves mostly basal (cauline smaller); alternate; petiolate (bases ± sheathing); blades palmately or palmati-pinnately nerved, ovate to nearly cordate, margins dentate to denticulate, abaxial faces tomentose to arachnose-villous, glabrescent or glabrate, adaxial puberulent or glabrate. Heads discoid (often ± nodding), in cymiform (terminal or axillary) arrays. Calyculi 0 or of 1–3 bractlets. Involucres cylindric or turbinate, 10–12+ mm diam. Phyllaries persistent, 10–15 in 1–2 series, erect (spreading in age), distinct, lance-linear to linear, equal, margins ± scarious (abaxial faces ± hirsute). Receptacles flat or convex, smooth or ± foveolate, epaleate. Ray-florets 0. Disc-florets 30–40 (–80+), bisexual, fertile; corollas usually ochroleucous or whitish, sometimes greenish, tubes shorter to longer than narrowly cylindric throats, lobes 5, erect or spreading, lanceolate to lance-linear; style-branches: stigmatic areas continuous or in 2 lines, apices truncate to rounded-truncate. Cypselae cylindro-fusiform, 20-nerved, glabrous; pappi persistent, of 80–120, whitish to stramineous, barbellulate to smooth bristles (equaling or surpassing involucres). x = 7.

Distribution

se United States

Discussion

Species 1.

Selected References

None.

Lower Taxa

... more about "Rugelia"
tomentose +  and arachnose-villous glabrescent or glabrate +
glabrate +  and puberulent +
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Theodore M. Barkley† +
Shuttleworth ex Chapman +
decurrent +
ovate;nearly cordate +
winged;nerved;ribbed +
barbellulate +  and smooth +
whitish +  and stramineous +
Rugelia +, Rugel’s ragwort +  and winter well +
greenish +, whitish +  and ochroleucous +
cylindro-fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
se United States +
For Ferdinand Ignatius Xavier Rugel, 1806–1878, original collector of the species +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
turbinate;cylindric +
spreading;erect +
lanceolate +  and lance-linear +
dentate to pinnatifid +  and entire +
dentate +  and denticulate +
2-carpellate +
persistent +
lance-linear +  and linear +
unequal +  and subequal +
Fl. S.E. U.S., +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
foveolate +  and smooth +
convex;flat +
exalbuminous +
1 (?) +  and 3 (?) +
in 2 lines +  and continuous +
appendaged +  and truncate +
papillate +
Compositae +
Rugelia +
Asteraceae tribe Senecioneae +
cylindric +
shorter to longer +
40 cm400 mm <br />0.4 m <br /> (50 cm500 mm <br />0.5 m <br />) +
20 cm200 mm <br />0.2 m <br /> (40 cm400 mm <br />0.4 m <br />) +
vine +, tree +, shrub +  and subshrub +