Arnoglossum diversifolium

(Torrey & A. Gray) H. Robinson

Phytologia 28: 294. 1974.

EndemicConservation concern
Basionyms: Cacalia diversifolia Torrey & A. Gray Fl. N. Amer. 2: 435. 1843
Synonyms: Conophora diversifolia (Torrey & A. Gray) Nieuwland Mesadenia difformis Small Mesadenia diversifolia (Torrey & A. Gray) Greene Senecio floridanus Schultz-Bipontinus
Treatment appears in FNA Volume 20. Treatment on page 624. Mentioned on page 623.

Plants 100–200 (–300) cm. Stems proximally ribbed (and purplish), distally angular (and greenish). Basal leaves: (petioles with brownish hairs) blades ovate to cordate-ovate, to 10 cm (bases truncate), margins denticulate. Cauline leaves: proximal petiolate, deltate-hastate, margins dentate (faces glabrous); distal petiolate or sessile, smaller (faces finely puberulent). Involucres (7.5–) 9–11 mm. Phyllaries lanceovate, midvein wings uniform or highest at apices. Corollas white or purplish, 8.5–9.5 (–10.5) mm. Cypselae fusiform, 3 mm; pappi (6–) 7–8 mm. 2n = 50.


Phenology: Flowering mid May–early Jul (Aug–Sep, peninsular Florida).
Habitat: Wet or mucky soils, along streams, swamps, woodlands
Elevation: 0–100 m

Discussion

Of conservation concern.

Arnoglossum diversifolium grows primarily in the Florida panhandle and adjacent Alabama and Georgia, and in Putnam and Levy counties, Florida.

Selected References

None.

Lower Taxa

None.

... more about "Arnoglossum diversifolium"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Loran C. Anderson +
(Torrey & A. Gray) H. Robinson +
decurrent +
Cacalia diversifolia +
ovate;cordate-ovate +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
winged;nerved;ribbed +
barbellate +  and smooth +
0.95 cm9.5 mm <br />0.0095 m <br /> (1.05 cm10.5 mm <br />0.0105 m <br />) +
purplish +  and white +
0.85 cm8.5 mm <br />0.0085 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
nerved +  and (4-)10-15-ribbed +
fertile +  and bisexual +
fertile +  and bisexual +
sessile +  and petiolate +
Ala. +, Fla. +  and Ga. +
0–100 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Wet or mucky soils, along streams, swamps, woodlands +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
cylindric;turbinate +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
recurved;spreading +
lanceolate +
denticulate +
2-carpellate +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
persistent +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering mid May–early Jul (Aug–Sep, peninsular Florida). +
lanceovate +
unequal +  and subequal +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
Endemic +  and Conservation concern +
appendaged +  and truncate +
papillate +
Conophora diversifolia +, Mesadenia difformis +, Mesadenia diversifolia +  and Senecio floridanus +
Arnoglossum diversifolium +
Arnoglossum +
species +
campanulate +
30 cm300 mm <br />0.3 m <br /> (300 cm3,000 mm <br />3 m <br />) +