Liatris oligocephala

J. R. Allison

Castanea 66: 175, figs, 8, 9C,F. 2001.

Common names: Cahaba torch
Treatment appears in FNA Volume 21. Treatment on page 523. Mentioned on page 513, 514, 535.

Plants (12–) 25–48 (–55) cm. Corms subglobose to depressed hemispheric. Stems glabrous. Leaves: basal scalelike (usually withering before flowering), cauline 1-nerved, mostly linear, 12–20 (–230) × 1.2–3 (–4.5) mm, gradually reduced beyond midstem, essentially glabrous (margins ciliate). Heads borne singly or (2–10) in subcorymbiform arrays. Peduncles (5–) 12–40 mm. Involucres campanulate-turbinate, 10–19 (–23) × (8–) 10–17 (–21) mm. Phyllaries in ± 3–4 series, (green or purple) lanceolate to linear-oblong, unequal, essentially glabrous or sparsely pilose, margins with or without hyaline borders, ciliate, apices long to short-acuminate. Florets (11–) 14–21 (–25); corolla-tubes glabrous inside. Cypselae (3.5–) 5–7 mm (glabrous); pappi: lengths ± 1/2–2/3 corollas, bristles barbellate.


Phenology: Flowering Jun–Jul(–Aug).
Habitat: Open, grassy areas of dolomitic glades
Elevation: 50–200 m

Discussion

Of conservation concern.

Liatris oligocephala is known only from Bibb County.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Liatris oligocephala"
not tailed +, truncate +, rounded +  and obtuse +
short-acuminate +
scarious +
usually ovate +  and lanceolate +
usually terete +  and clavate +
spiciform +, racemiform +, cymiform +  and corymbiform +
subcorymbiform +
indeterminate +  and determinate +
Guy L. Nesom +
J. R. Allison +
decurrent +
not enlarged +
5-nerved +, 3-nerved +  and 1-nerved +
dissected +, lobed +, toothed +  and entire +
mostly linear;ovatelanceolate +
papillate +  and rugose +
(4-)5-angled;10-ribbed +
linear-clavate +
barbellate +
2 cm20 mm <br />0.02 m <br /> (23 cm230 mm <br />0.23 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
Cahaba torch +
white +, usually lavender +  and dark magenta or pinkish purple +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
usually hirsutulous +  and hirtellous-pilose +
prismatic +
fertile +  and bisexual +
50–200 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open, grassy areas of dolomitic glades +
indeterminate +
each +  and sessile +
1.9 cm19 mm <br />0.019 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
1.7 cm17 mm <br />0.017 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
campanulate-turbinate +
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
lanceolate +  and lance-linear +
2-carpellate +
persistent +
1/2 +  and 2/3 +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering Jun–Jul(–Aug). +
pilose +  and glabrous +
18 +  and 40 +
bearing subulate enations +, hairy +  and bristly +
conic;spheric;usually flat;convex +
exalbuminous +
branched +  and simple +
appendaged +  and truncate +
hirsutulous +
papillate +
Compositae +
Liatris oligocephala +
species +
20 cm200 mm <br />0.2 m <br /> (180 cm1,800 mm <br />1.8 m <br />) +
48 cm480 mm <br />0.48 m <br /> (55 cm550 mm <br />0.55 m <br />) +