Arnoglossum album

L. C. Anderson

Sida 18: 378, figs. 1, 6-9. 1998.

Treatment appears in FNA Volume 20. Treatment on page 623.

Plants 80–100+ cm. Stems strongly ridged. Basal leaves: (petioles 12–18+ cm) blades (lateral-veins appressed to midveins 2–4 cm, then spreading) broadly ovate to narrowly oblong-lanceolate, 15–37 cm, margins usually entire, rarely sinuate or serrulate-denticulate. Cauline leaves: proximal petiolate, blades ovate (12–18+ cm, bases cuneate), margins serrate (apices acuminate); distal sessile, smaller. Involucres 10–12.5+ mm. Phyllaries (chalky white) ± ovate, midvein wings highest at bases. Corollas white, rarely tinged with pink, 9–10.5 mm. Cypselae cylindric to narrowly clavate, 4.2–5 mm; pappi 6–7 mm. 2n = 50.


Phenology: Flowering May–mid July.
Habitat: Poorly drained, acidic loamy sands, savannas, open pinewoods
Elevation: 0–10 m

Discussion

Of conservation concern.

Arnoglossum album is known only from Bay and Gulf counties.

Selected References

None.

Lower Taxa

None.

... more about "Arnoglossum album"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Loran C. Anderson +
L. C. Anderson +
decurrent +
ovate;broadly ovate;narrowly oblong-lanceolate +
15 cm150 mm <br />0.15 m <br /> (37 cm370 mm <br />0.37 m <br />) +
winged;nerved;ribbed +
barbellate +  and smooth +
tinged with pink +  and white +
0.9 cm9 mm <br />0.009 m <br /> (1.05 cm10.5 mm <br />0.0105 m <br />) +
nerved +  and (4-)10-15-ribbed +
cylindric +  and narrowly clavate +
fertile +  and bisexual +
fertile +  and bisexual +
0–10 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Poorly drained, acidic loamy sands, savannas, open pinewoods +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
cylindric;turbinate +
1 cm10 mm <br />0.01 m <br /> (1.25 cm12.5 mm <br />0.0125 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
recurved;spreading +
lanceolate +
serrulate-denticulate +, sinuate +  and entire +
2-carpellate +
persistent +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering May–mid July. +
unequal +  and subequal +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
appendaged +  and truncate +
papillate +
Conophora +  and Mesadenia +
Arnoglossum album +
Arnoglossum +
species +
campanulate +
30 cm300 mm <br />0.3 m <br /> (300 cm3,000 mm <br />3 m <br />) +