Thelesperma subnudum

A. Gray

Proc. Amer. Acad. Arts 10: 72. 1874.

IllustratedEndemic
Synonyms: Thelesperma caespitosum Dorn Thelesperma marginatum Rydberg Thelesperma pubescens Dorn Thelesperma pubescens var. caespitosum (Dorn) C. J. Hansen Thelesperma subnudum var. alpinum S. L. Welsh Thelesperma subnudum var. marginatum (Rydberg) Cronquist Thelesperma subnudum var. pubescens (Dorn) S. L. Welsh Thelesperma windhamii
Treatment appears in FNA Volume 21. Treatment on page 201. Mentioned on page 200.

Perennials, 10–30 (–40+) cm (caudices often woody). Cauline leaves mostly crowded over proximal 1/4 (–1/2) of plant heights, internodes mostly 1–5 (–35 mm); lobes mostly oblanceolate to linear, (5–) 10–35 (–45+) × (1–) 2–3 (–5) mm. Calyculi of 7–9 deltate to lance-linear bractlets 2–4+ mm. Ray-florets 0, or 8; laminae yellow, (6–) 12–20+ mm. Disc corollas yellow, sometimes with redbrown nerves, throats equal to or longer than lobes. Cypselae 5–7 mm; pappi usually 0, rarely 0.1–0.5 mm. 2n = 22, 24.


Phenology: Flowering May–Sep.
Habitat: Openings in pinyon/juniper or yellow-pine forests, often on talus or "balds"
Elevation: 1000–2900 m

Distribution

V21-493-distribution-map.gif

Alta., Ariz., Colo., Mont., Nev., N.Mex., N.Dak., Utah, Wyo.

Discussion

As here circumscribed, Thelesperma subnudum includes plants that have been treated as distinct species and/or varieties (some of which have been treated as of conservation concern). See C. J. Hansen et al. (2002) for an alternate interpretation of T. subnudum.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Thelesperma subnudum"
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 +
A. Gray +
smooth +  and ciliate or barbed +
1 +  and 2 +
subulate +
decurrent +
compound +  and simple +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
reflexed +  and spreading +
deltate;lance-linear +
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 +
Alta. +, Ariz. +, Colo. +, Mont. +, Nev. +, N.Mex. +, N.Dak. +, Utah +  and Wyo. +
1000–2900 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 +
Openings in pinyon/juniper or yellow-pine forests, often on talus or "balds" +
discoid +  and radiate +
in loose , corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
obcompressed +  and columnar +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
hemispheric;urceolate +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
3.5 cm35 mm <br />0.035 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
mostly oblanceolate +  and linear +
unequal +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 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 +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Flowering May–Sep. +
2 +, 5 +  and 8 +
1/4 +  and 1/2 +
Proc. Amer. Acad. Arts +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
subulate +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Thelesperma caespitosum +, Thelesperma marginatum +, Thelesperma pubescens +, Thelesperma pubescens var. caespitosum +, Thelesperma subnudum var. alpinum +, Thelesperma subnudum var. marginatum +, Thelesperma subnudum var. pubescens +  and Thelesperma windhamii +
Thelesperma subnudum +
Thelesperma +
species +
toothed +  and entire +
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +