Senecio ampullaceus

Hooker

Bot. Mag. 63: plate 3478. 1836.

Endemic
Synonyms: Senecio ampullaceus var. floccosus Engelmann & A. Gray Senecio ampullaceus var. glaberrimus Engelmann & A. Gray
Treatment appears in FNA Volume 20. Treatment on page 561. Mentioned on page 548.

Annuals, (10–) 20–80 cm (roots relatively thin, branching). Herbage loosely arachno-tomentose, unevenly glabrate or glabrescent. Stems single. Leaves progressively reduced distally; petiolate (petioles broadly winged); blades ovatelanceolate, 3–8 (–10) × (1–) 1.5–3 (–4) cm, bases tapered or ± truncate, margins dentate to subentire (mid leaves subsessile, lanceolate; distal subulate, bractlike). Heads (1–) 10–30 in corymbiform arrays. Calyculi of 2–8 bractlets (1–2+ mm). Phyllaries ± 13, (6–) 7–10 mm, tips green to grayish. Ray-florets ± 8; corolla laminae 8–15 mm. Cypselae hirtellous.


Phenology: Flowering early–mid spring.
Habitat: Open sandy or disturbed sites
Elevation: 100–800 m

Discussion

Senecio ampullaceus has been reported for Arkansas and Missouri (St. Louis). It is similar to S. quaylei.

Selected References

None.

Lower Taxa

None.
... more about "Senecio ampullaceus"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Theodore M. Barkley† +
Hooker +
tapered +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
ovatelanceolate +
1.5cm;3cm +
winged;nerved;ribbed +
barbellulate +  and smooth +
white +  and stramineous +
purplish +, reddish +, white +, ochroleucous +, yellow +  and white rarely reddish +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
angled +, 5-ribbed +, prismatic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
100–800 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open sandy or disturbed sites +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
glabrescent +, glabrate +  and arachno-tomentose +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
turbinate;campanulate +
cauline +  and basal +
reduced +
erect;recurved +
deltate +
dentate to pinnatifid +  and entire +
dentate +  and subentire +
2-carpellate +
persistent +
Flowering early–mid spring. +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
mostly oblong +  and lanceolate or linear +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
papillate +
Senecio ampullaceus var. floccosus +  and Senecio ampullaceus var. glaberrimus +
Senecio ampullaceus +
species +
campanulate +
green +  and grayish +
denticulate +  and serrate or toothed +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
shrub +  and subshrub +