Cirsium edule var. edule

Common names: Hall’s thistle
Endemic
Synonyms: Cirsium hallii (A. Gray) M. E. Jones
Treatment appears in FNA Volume 19. Treatment on page 147.

Heads usually crowded at stem tips. Peduncles 0–1 (–4) cm. Involucres 1.5–2.5 × 1.5–3 cm, thinly to densely arachnoid. Phyllary apices ascending or ± spreading, plane to acicular, spines 1–5 mm. Corollas 14–21 mm, tubes 5–11 mm, throats 4–8 mm, lobes 4–6 mm; style tips 3–4 mm. Cypselae light to dark-brown, 3.5–4.5 mm; pappi 9–13 mm.


Phenology: Flowering summer (Jun–Aug).
Habitat: Sea bluffs, roadsides, damp soil at edge of woods, openings in conifer or conifer-hardwood forests
Elevation: 0–900 m

Discussion

Variety edule is known from the coast and coast ranges of Oregon and Washington. Some coastal populations of var. edule approach montane forms of var. macounii in stature, head size, and involucre pubescence. Some of the variation in var. edule may be a result of past introgression with Cirsium remotifolium. Populations of var. edule from within the ranges of C. remotifolium vars. odontolepis, remotifolium, and rivulare often show features of those taxa.

Selected References

None.

Lower Taxa

None.

"fine" is not a number."thin" is not a number.

... more about "Cirsium edule var. edule"
glabrescent +, arachnoid-tomentose +  and villous +
glabrous +  and sparsely villous or shaggy-tomentose +
short-tailed +
spineless +  and twisted +
dentate +, entire +  and spine-tipped +
flexuous +  and straight +
innermost +
scarious +
not differentiated +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
David J. Keil +
Nuttall +
sessile +, winged-petiolate +  and spiny +
auriculate-clasping +
decurrent +
Asteraceae tribe Cynareae +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
plane;moderately undulate coarsely dentate +
1cm;10cm +
10-nerved or 20-nerved +  and rugose +
tawny +  and white +
? (?) +  and ? (?) +
Hall’s thistle +
actinomorphic +
2.2 cm22 mm <br />0.022 m <br /> (3.3 cm33 mm <br />0.033 m <br />) +
white +  and pink red yellow or purple +
1.4 cm14 mm <br />0.014 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
light +  and dark-brown +
compressed +  and ovoid +
fertile +  and bisexual +
Oreg. +  and Wash. +
0–900 m +
gray-canescent +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sea bluffs, roadsides, damp soil at edge of woods, openings in conifer or conifer-hardwood forests +
indeterminate +
each +  and sessile +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
narrowly ovoid;hemispheric or campanulate +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
bristle-tipped +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not knobbed +, not filiform +, lobed +, spiny-dentate +, linear +  and narrowly broadly triangular +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
entire +  and dentate +
usually lobed +  and dissected +
serrulate +  and entire +
entire +  and spiny-fringed +
2-carpellate +
1.9 cm19 mm <br />0.019 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
persistent +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering summer (Jun–Aug). +
spreading +  and ascending +
plane +  and acicular +
middle +  and outer +
papillate +  and smooth +
Trans. Amer. Philos. Soc., n. s. +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
glutinous +
tawny;white +
setiform +  and plumose +
exalbuminous +
subequal +
straight +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
simple +  and openly branched +
appendaged +  and truncate +
dilated +  and swollen +
enlarged +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Cirsium hallii +
Cirsium edule var. edule +
Cirsium edule +
variety +
0.85 cm8.5 mm <br />0.0085 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
cylindric +
expanded +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
bristly-dentate to coarsely +
non-septate +, septate +  and jointed +
slender +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
perennial +  and biennial +
20 cm200 mm <br />0.2 m <br /> (350 cm3,500 mm <br />3.5 m <br />) +
tree +, vine +, shrub +  and subshrub +