Cirsium turneri

Warnock

SouthW. Naturalist 5: 101. 1960.

Common names: Cliff thistle
Treatment appears in FNA Volume 19. Treatment on page 144. Mentioned on page 99, 101, 142, 145.

Perennials 15–45 cm; stout, branched caudices. Stems 5–30+, horizontal or hanging from cliff sides, thinly appressed gray-tomentose and villous with septate trichomes; branches 0–few, distal, ascending. Leaves: blades oblongelliptic to oblanceolate, 5–30 × 1–5 cm, shallowly to deeply pinnatifid, lobes spreading, triangular, coarsely dentate or lobed, obtuse to acute, main spines slender, 4–10 mm, abaxial faces green or gray-tomentose, villous with septate trichomes along midveins, ± glabrate, adaxial green and glabrous or thinly tomentose, ± glabrate; basal often present at flowering, spiny winged-petiolate; principal cauline sessile, gradually reduced distally; distal oblong, bases ± clasping, usually less deeply lobed and often spinier than proximal. Heads 1–6+, borne singly or in condensed corymbiform arrays. Peduncles 0–1 cm. Involucres cylindric to narrowly campanulate, 3.5–4.5 × 1.5–2 cm, loosely arachnoid, glabrate, finely short-ciliate. Phyllaries in 5–6 series, imbricate, linear-lanceolate (outer) to linear (inner), entire, abaxial faces without glutinous ridge, apices red to reddish purple, stiffly ascending, long-acuminate, spines straight, 1–10 mm, ± flattened; apices of inner stramineous to red, straight or flexuous. Corollas red to reddish purple, 26–27 mm, tubes 3.5–5 mm, throats 7.5–9.5 mm, lobes 12–14 mm; style tips ca. 3 mm. Cypselae stramineous, 5–6 mm, apical collars not differentiated; pappi 20–25 mm.


Phenology: Flowering summer (Jun–Sep).
Habitat: Crevices in limestone or basaltic cliffs
Elevation: 900–1500 m

Distribution

V19-130-distribution-map.gif

Tex., Mexico (Chihuahua), Mexico (Coahuila)

Discussion

Cirsium turneri is known from the mountains of the Big Bend area of trans-Pecos Texas and adjacent areas of northern Mexico.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Cirsium turneri"
glabrate +, villous +  and gray-tomentose +
glabrate +, tomentose +  and glabrous +
short-tailed +
spineless +  and twisted +
dentate +, entire +  and spine-tipped +
red;reddish purple +
innermost +
scarious +
not differentiated +
corymbiform +  and condensed +
indeterminate +  and determinate +
David J. Keil +
Warnock +
winged-petiolate +
usually less deeply lobed and often spinier +
Asteraceae tribe Cynareae +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
pinnatifid;oblongelliptic;oblanceolate +
1cm;5cm +
10-nerved or 20-nerved +  and rugose +
tawny +  and white +
Cliff thistle +
actinomorphic +
red +  and reddish purple +
2.6 cm26 mm <br />0.026 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
compressed +  and ovoid +
fertile +  and bisexual +
Tex. +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
900–1500 m +
gray-canescent +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Crevices in limestone or basaltic cliffs +
in condensed corymbiform arrays +  and singly +
indeterminate +
each +  and sessile +
3.5 cm35 mm <br />0.035 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
glabrate +  and arachnoid +
cylindric;narrowly campanulate +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
bristle-tipped +
lobed obtuse +  and acute +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
entire +  and dentate +
usually lobed +  and dissected +
2-carpellate +
persistent +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering summer (Jun–Sep). +
flexuous +  and straight +
middle +  and outer +
weakly to strongly +
papillate +  and smooth +
SouthW. Naturalist +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
glutinous +
tawny;white +
setiform +  and plumose +
exalbuminous +
subequal +
straight +
flattened +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
spiny-winged +, simple +  and branched +
hanging +  and horizontal +
5 +  and 30 +
appendaged +  and truncate +
dilated +  and swollen +
enlarged +
3 cm30 mm <br />0.03 m <br /> (?) +
Compositae +
Cirsium turneri +
species +
cylindric +
expanded +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
bristly-dentate to coarsely +
slender +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
15 cm150 mm <br />0.15 m <br /> (45 cm450 mm <br />0.45 m <br />) +
tree +, vine +, shrub +  and subshrub +