Flaveria brownii

A. M. Powell

Ann. Missouri Bot. Gard. 65: 611, fig. 4. 1979.

Common names: Brown’s yellowtops
Endemic
Treatment appears in FNA Volume 21. Treatment on page 248. Mentioned on page 247.

Perennials (perhaps flowering first-year), 15–70 cm (glabrate). Stems erect or decumbent. Leaves sessile; blades linear, 5–12 cm × 2–8 mm, bases barely connate, margins entire or weakly serrate. Heads 20–100+, in ± open, paniculiform-corymbiform arrays. Calyculi of 1–2 linear bractlets 1–2.5 mm. Involucres oblong-angular, 4–5 mm. Phyllaries 5–6, boatshaped (phyllaries enclosing ray-florets conspicuously keeled). Ray-florets 0 or 1; laminae yellow, oblongelliptic, 2 mm. Disc-florets (5–) 7–10; corolla-tubes 0.8–1.2 mm, throats funnelform, 1.2–1.5 mm (distal 1/2 expanded). Cypselae linear, 1.5–2 mm (those of rays longer); pappi 0.2n = 36.


Phenology: Flowering Jun–Dec.
Habitat: Saline, sandy, and marshy areas of costal flats and islands
Elevation: 0–30 m

Discussion

Flaveria brownii, which has radiate heads present among the discoid heads in each capitulescence, is superficially similar to the discoid F. oppositifolia. It occurs in the lower Gulf Coast region of Texas; the latter is Mexican.

Selected References

None.

Lower Taxa

None.
... more about "Flaveria brownii"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform-corymbiform +  and open +
indeterminate +  and determinate +
Sharon C. Yarborough +  and A. Michael Powell +
A. M. Powell +
connate +
decurrent +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
oblong-ovate;lanceolate or linear +
2mm;8mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
barbellulate +  and barbellate +
Brown’s yellowtops +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
yellow +  and whitish +
hairy +  and glabrous +
linear-oblong +, oblanceolate +  and compressed +
fertile +  and bisexual +
fertile +  and bisexual +
0–30 m +
short-pubescent +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Saline, sandy, and marshy areas of costal flats and islands +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
turbinate;cylindric;turbinate;cylindric;urceolate;oblong +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
oblongelliptic +
2 cm20 mm <br />0.02 m <br /> (?) +
deltate +
serrate +  and entire +
toothed +  and entire +
2-carpellate +
persistent +
coroniform +
Flowering Jun–Dec. +
Ann. Missouri Bot. Gard. +
bearing subulate enations +, hairy +  and bristly +
2 +  and 4 +
exalbuminous +
decumbent +  and erect +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Flaveria brownii +
Flaveria +
species +
campanulate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
15 cm150 mm <br />0.15 m <br /> (70 cm700 mm <br />0.7 m <br />) +