Bradburia pilosa

(Nuttall) Semple

Rev. Heterotheca Phyllotheca, 7. 1996.

Common names: Soft goldenaster
IllustratedEndemic
Basionym: Chrysopsis pilosa Nuttall J. Acad. Nat. Sci. Philadelphia 7: 66. 1834
Synonyms: Chrysopsis nuttallianum Britton Diplogon nuttallii Kuntze Heterotheca pilosa (Nuttall) Shinners
Treatment appears in FNA Volume 20. Treatment on page 212. Mentioned on page 211.

Annuals, 15–80 cm; taprooted. Stems erect, branched distally (rarely at base), sparsely to densely pilose. Leaves: basal oblanceolate, 50–100 × 10–25 mm, margins entire to apically dentate, pilose, apices acute, faces pilose; cauline linear-elliptic, reduced distally to 10 mm or less, margins obscurely dentate or entire. Heads 1–30 (–70). Peduncles 1.5–7 cm, short-pilose, sometimes stipitate-glandular distally; bracts foliaceous, grading to linear scales. Phyllaries in 3–4 series, linear, unequal, margins scarious, faces sparsely to densely short to long-pilose, sparsely glandular. Ray-florets (11–) 16 (–24); laminae 7–12 × 1–2 mm. Disc-florets 25–60, bisexual, fertile; corollas 4.5–6 mm, lobes 0.5 mm. Cypselae stramineous to brown, obconic-obovoid, compressed (narrowly elliptic in cross-section), smooth or slightly ribbed, faces short-strigose; pappi in 2 (–3) series, outer of light tan, flat scales 0.5–1.1 mm, inner 1 (–2) of yellow to rust proximally, whitish to tan distally, linear, barbellate bristles 5–6 mm. 2n = 8.


Phenology: Flowering late spring–early summer.
Habitat: Sandy and rocky soils, dry prairies, fields, glades, roadsides
Elevation: 10–400 m

Distribution

V20-473-distribution-map.gif

Ark., Kans., La., Miss., Mo., Okla., Tenn., Tex.

Discussion

Bradburia pilosa grows in the western coastal plain province, southwestern central lowlands province, lower elevations of the Ozark Plateau province, and has possibly been introduced at a few locations in the interior low plateau province. It has possibly been introduced at a few sites in Kentucky, North Carolina, Virginia, and in Leon County, Florida.

Selected References

None.

Lower Taxa

None.

No values specified."[" is not declared as a valid unit of measurement for this property."]" is not declared as a valid unit of measurement for this property.

... more about "Bradburia pilosa"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
John C. Semple +
(Nuttall) Semple +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
decurrent +
Chrysopsis pilosa +
oblanceolate +
rugulose +  and muricate +
stramineous +  and rusty brown +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
linear-lanceolate +  and elliptic-oblong +
Soft goldenaster +
not 2-lipped +  and actinomorphic +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
ribbed +  and smooth +
beaked +, 2-ribbed +  and 5-ribbed +
stramineous +  and brown +
compressed +  and obconic-obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
Ark. +, Kans. +, La. +, Miss. +, Mo. +, Okla. +, Tenn. +  and Tex. +
10–400 m +
short-strigose +, long-pilose +  and pilose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy and rocky soils, dry prairies, fields, glades, roadsides +
in lax paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
yellow;rust proximally +
campanulate +
sessile +  and petiolate +
cauline +  and basal +
triangular +
entire +, dentate +  and apically dentate +
2-carpellate +
persistent +
stipitate-glandular +  and short-pilose +
1.5 cm15 mm <br />0.015 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Flowering late spring–early summer. +
linear +  and linear-lanceolate +
Rev. Heterotheca Phyllotheca, +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
papillate +  and smooth +
Chrysopsis nuttallianum +, Diplogon nuttallii +  and Heterotheca pilosa +
Bradburia pilosa +
Bradburia +
species +
cylindric +
expanded +
15 cm150 mm <br />0.15 m <br /> (80 cm800 mm <br />0.8 m <br />) +
tree +, shrub +  and subshrub +