Thelesperma nuecense

B. L. Turner

Rhodora 61: 243. 1959.

Endemic
Treatment appears in FNA Volume 21. Treatment on page 202. Mentioned on page 200.

Annuals, 30–70 (–90+) cm. Cauline leaves ± scattered over proximal 1/4–1/2 (–3/4) of plant heights, internodes mostly 4–10 cm; lobes mostly linear to filiform, sometimes ± oblong, 25–50 (–120) × 0.5–1+ mm. Calyculi of 6–7+ narrowly triangular bractlets 2–4 mm. Ray-florets 8; laminae yellow to golden, usually proximally, sometimes almost wholly, suffused with redbrown or with a redbrown spot or band, 10–20+ mm. Disc corollas redbrown, throats shorter than lobes. Cypselae 5–5.5+ mm; pappi 0.5–1+ mm. 2n = 20.


Phenology: Flowering Mar–Jul.
Habitat: Disturbed sites on sands
Elevation: 0–200 m

Discussion

Distinctions between Thelesperma nuecense and T. filifolium are subtle; they may be better treated as one species.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Thelesperma nuecense"
not tailed +, rounded +  and obtuse +
dark +  and pale +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
John L. Strother +
B. L. Turner +
smooth +  and ciliate or barbed +
1 +  and 2 +
subulate +
redbrown spot +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
decurrent +
compound +  and simple +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
reflexed +  and spreading +
triangular +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
barbellulate +  and barbellate +
redbrown +, yellow +  and bicolored +
obcompressed +
fertile +  and bisexual +
fertile +  and bisexual +
0–200 m +
hairy +  and glabrous +
papillate +  and tuberculate or verrucate +
linear-fusiform;4-angled;ovate;orbiculate;oblong;linear;cuneate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Disturbed sites on sands +
discoid +  and radiate +
in loose , corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
obcompressed +  and columnar +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
hemispheric;urceolate +
suffused +, yellow +  and golden +
sessile +  and petiolate +
cauline +  and basal +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
oblong +, mostly linear +  and filiform +
unequal +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.1 cm1 mm <br />0.001 m <br /> (?) +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
obovate;oblong +
persistent +
of 1-2 , smooth to ciliate or barbed awns or scales +  and coroniform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Flowering Mar–Jul. +
2 +, 5 +  and 8 +
1/4 +  and 1/2-3/4 +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
subulate +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Thelesperma nuecense +
Thelesperma +
species +
toothed +  and entire +
70 cm700 mm <br />0.7 m <br /> (90 cm900 mm <br />0.9 m <br />) +
30 cm300 mm <br />0.3 m <br /> (70 cm700 mm <br />0.7 m <br />) +