Liatris aestivalis

G. L. Nesom & O’Kennon

Sida 19: 768, figs. 1, 2. 2001.

Common names: Summer gayfeather
Treatment appears in FNA Volume 21. Treatment on page 520. Mentioned on page 514.

Plants 20–65 cm. Corms globose or subglobose. Stems glabrous. Leaves: basal and proximal cauline 1-nerved, linear to linear-lanceolate, 70–150 × 1–2.5 mm, abruptly or gradually reduced on distal 1/2 of stems, essentially glabrous (margins sometimes sparsely ciliate). Heads (closely spaced, stems obscured) in dense, (cylindric) spiciform arrays. Peduncles 0. Involucres cylindro-turbinate, 9–12 × 3.5–5 mm. Phyllaries in 2–3 series, (often dark purple in anthesis) oblong-lanceolate to lanceolate-triangular, weakly unequal, essentially glabrous, margins without hyaline borders, sometimes sparsely ciliate, apices acute to acute-attenuate (sometimes with narrow tips). Florets 3–4 (–5); corolla-tubes glabrate inside. Cypselae 4.5–6 mm; pappi: lengths ± equaling corollas, bristles plumose.


Phenology: Flowering mid Jul–Aug(–Sep).
Habitat: Shallow soils over limestone outcrops, slopes, bases of slopes, usually with yucca
Elevation: 100–400 m

Discussion

Selected References

None.

Lower Taxa

None.

"plumose" is not a number."fine" is not a number.

... more about "Liatris aestivalis"
not tailed +, truncate +, rounded +  and obtuse +
acute;acute-attenuate +
scarious +
usually ovate +  and lanceolate +
usually terete +  and clavate +
indeterminate +  and determinate +
Guy L. Nesom +
G. L. Nesom & O’Kennon +
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 +
Summer gayfeather +
white +, usually lavender +  and dark magenta or pinkish purple +
usually hirsutulous +  and hirtellous-pilose +
prismatic +
fertile +  and bisexual +
Okla. +  and Tex. +
100–400 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Shallow soils over limestone outcrops, slopes, bases of slopes, usually with yucca +
in usually determinate , rarely indeterminate , arrays +  and singly +
indeterminate +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
cylindro-turbinate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
7 cm70 mm <br />0.07 m <br /> (15 cm150 mm <br />0.15 m <br />) +
cauline +, proximal +  and basal +
linear;linear-lanceolate +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
lanceolate +  and lance-linear +
2-carpellate +
persistent +
Flowering mid Jul–Aug(–Sep). +
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 aestivalis +
species +
20 cm200 mm <br />0.2 m <br /> (180 cm1,800 mm <br />1.8 m <br />) +