Cirsium ochrocentrum var. ochrocentrum
Common names: Yellowspine thistle
Treatment appears in FNA Volume 19. Treatment on page 123.
Stems densely leafy, nodes crowded. Leaves: distal cauline bases often long-decurrent. Corollas white or pale lavender to purple. 2n = 32, 34.
Phenology: Flowering spring–summer (May–Sep).
Habitat: Short-grass prairies, desert grasslands, sagebrush steppes, pinyon-juniper, mesquite woodlands, often in disturbed areas
Elevation: 400–2200 m
Distribution
Ariz., Calif., Colo., Kans., Nebr., N.Mex., Okla., S.Dak., Tex., Utah, Wyo.
Discussion
Variety ochrocentrum grows in the Great Plains from South Dakota to New Mexico and Texas. It has been introduced in California; perhaps the Utah and Arizona records are introductions as well.
Selected References
None.
Lower Taxa
None.
"fine" is not a number.
... more about "Cirsium ochrocentrum var. ochrocentrum"
outer +
white-tomentose +
gray-tomentose +
short-tailed +
introrse +
connate +
innermost +
rounded;acute +
scarious +
linear-oblong +
colored +
narrow +
hirsute +
papillate +
angled +
continuous +
winged-petiolate +
absent +
appressed +
undulate;oblong;narrowly elliptic +
ascending +
absent +
hairy +
few +
barbellate +
many +
coarse +
absent +
Yellowspine thistle +
actinomorphic +
bilateral +
monomorphic +
not ribbed +
light-brown +
glabrous +
6mm;9mm +
long-decurrent +
reduced +
spine-tipped +
straight +
eglandular +
green +
distinct +
expanded +
proximal +
25;200 +
bisexual +
dispersed +
Short-grass prairies, desert grasslands, sagebrush steppes, pinyon-juniper, mesquite woodlands, often in disturbed areas +
discoid +
singly +
indeterminate +
terminal +
1;few +
homogamous +
flexuous +
surrounding +
ovoid;hemispheric or broadly campanulate +
smaller +
bristly-dentate +
alternate +
bristle-tipped +
spaced +
spreading +
triangular +
? (?) +
yellowish +
revolute +
scarious +
crowded +
later +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
usually noticeably shorter +
falling +
tough +
thick +
absent +
connate +
imbricate +
persistent +
distinct +
herbaceous +
many +
weakly to strongly +
connate +
stigmatic +
reduced +
Mem. Amer. Acad. Arts, n. s. +
1849 +
absent +
epaleate +
flat;convex +
glutinous +
narrow +
fibrous +
tawny;white +
exalbuminous +
modifed +
5;10 +
subequal +
spreading +
alternate +
leafy +
gray-tomentose +
2-branched +
ringed +
enlarged +
elongate +
Cirsium ochrocentrum var. ochrocentrum +
Cirsium ochrocentrum +
variety +
cylindric +
expanded +
dentate +
bristly-dentate to coarsely +
non-septate +
long +
bent +
perennial +
appressed +
middle +