Lygodesmia ramosissima

Greenman

Proc. Amer. Acad. Arts 35: 315. 1900.

Common names: Pecos River skeletonplant
Treatment appears in FNA Volume 19. Treatment on page 373. Mentioned on page 370.

Perennials 25–60 cm (dense bushy clumps); taproots deep, vertical, woody. Stems ascending to erect, pale green, striate, often much-branched from bases and distally, glabrous. Leaves: (basal forming rosettes, sometimes withered and absent at flowering) proximal blades linear, 50–70 × 1–2 mm, entire or sparingly laciniate; cauline 40 mm or less, reduced to scales distally. Heads (1–6), borne singly. Involucres cylindric, 14–21 × 4–6 mm, apices narrow. Calyculi of 8–10, ovate bractlets 2–3 mm, margins ciliate (apices often purple, with small appendages, faces glabrous, sometimes roughened). Phyllaries 5–7, linear-oblong, 16–20 mm, margins scarious, faces glabrous, apices appendaged (often dark). Florets 5–7; corollas lavender, 12–16 mm, ligules 5–6 mm wide. Cypselae 11–14 mm, faces smooth, adaxial weakly sulcate, glabrous; pappi 11–13 mm. 2n = 18.


Phenology: Flowering Jun–Oct.
Habitat: Rocky grasslands and oak forest, rocky soil, roadsides
Elevation: 1200–1900 m

Distribution

V19-600-distribution-map.gif

Tex., Mexico (Chihuahua), Mexico (Durango), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number."less" is not a number.

... more about "Lygodesmia ramosissima"
narrowed +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
David J. Bogler +
Greenman +
decurrent +
compound +  and simple +
linear;subulate +
reduced +
tuberculate +, rugose +, muricate +  and smooth +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
filiform +
Pecos River skeletonplant +
zygomorphic +, actinomorphic +  and (3-)5-merous +
white +, usually pink +  and lavender or purple +
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
pale green +  and tan +
angled +, subterete +, arcuate +  and subcylindric +
Tex. +, Mexico (Chihuahua) +, Mexico (Durango) +  and Mexico (Sonora) +
1200–1900 m +
rugose-roughened +  and smooth +
winged +  and beaked +
dispersed +
Rocky grasslands and oak forest, rocky soil, roadsides +
indeterminate +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
cauline +  and basal +
lobed +  and entire +
2-carpellate +
white +  and tawny +
persistent +
1.1 cm11 mm <br />0.011 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Flowering Jun–Oct. +
connate +  and distinct +
subequal +  and unequal +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
laciniate +  and entire +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Proc. Amer. Acad. Arts +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
much-branched +
pale green +
ascending +  and erect +
1 +  and 5 +
appendaged +  and truncate +
papillate +
Undefined tribe Lactuceae +
Lygodesmia ramosissima +
Lygodesmia +
species +
taprooted +  and rhizomatous +
25 cm250 mm <br />0.25 m <br /> (60 cm600 mm <br />0.6 m <br />) +
shrub +  and subshrub +