Sonchus arvensis subsp. uliginosus
Consp. Fl. Eur., 433. 1879.
Introduced
Basionym: Sonchus uliginosus M. Bieberstein Fl. Taur.-Caucas. 2: 238. 1808
Synonyms: Sonchus arvensis var. glabrescens Günther, Grabowski & Wimmer
Peduncles sessile-glandular. Phyllaries usually sessile-glandular, rarely tomentose, the longer 10–15 mm. 2n = 36.
Phenology: Flowering Jul–Sep.
Habitat: Mostly wet, disturbed sites, oil-seed or irrigated crops, roadside ditches, along streams, wetlands
Elevation: 0–2200 m
Distribution
Introduced; Alta., B.C., Man., N.B., N.S., Ont., P.E.I., Que., Sask., Yukon, Calif., Colo., Conn., Del., Idaho, Ill., Ind., Iowa, Kans., Maine, Md., Mass., Mich., Minn., Miss., Mont., Nebr., Nev., N.J., N.Y., N.C., N.Dak., Ohio, Oreg., Pa., S.Dak., Tenn., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., Europe, widely elsewhere
Discussion
Subspecies uliginosus is considered a noxious weed in Alaska, Idaho, Illinois, Iowa, Maryland, Minnesota, North Carolina, North Dakota, South Dakota, and Wyoming.
Selected References
None.
Lower Taxa
None.
"fine" is not a number.
... more about "Sonchus arvensis subsp. uliginosus"
tailed +
introrse +
connate +
acute +
scarious +
developed +
absent +
hirsute +
papillate +
lobed;rounded;auriculate;oblong;lanceolate +
persistent +
falling +
continuous +
petiolate +
2cm;15cm +
absent +
deltate +
not constricted +
winged +
ribbed +
1;15 +
filiform +
stigmatic +
white +
80;100 +
coarse +
absent +
sessile +
monomorphic +
dark-brown +
2.5mm;3.5mm +
Alta. +, B.C. +, Man. +, N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Calif. +, Colo. +, Conn. +, Del. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mont. +, Nebr. +, Nev. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, S.Dak. +, Tenn. +, Utah +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Wyo. +, Europe + and widely elsewhere +
straight +
glabrous +
distinct +
ligulate +
250;450 +
proximal +
80;250 +
bisexual +
dispersed +
Mostly wet, disturbed sites, oil-seed or irrigated crops, roadside ditches, along streams, wetlands +
subsessile +
singly +
indeterminate +
homogamous +
true +
surrounding +
campanulate;urceolate +
alternate +
prickly +
scarious +
distinct +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
sessile +
sessile-glandular +
stipitate-glandular +
dilated +
tough +
thick +
connate +
sessile +
sessile-glandular +
persistent +
longer +
tomentose +
unequal +
equal +
Consp. Fl. Eur., +
1879 +
epaleate +
glabrous +
pitted +
flat;convex +
fibrous +
exalbuminous +
modifed +
2;3 +
Introduced +
alternate +
branched +
erect +
2-branched +
hirsute +
papillate +
Sonchus arvensis subsp. uliginosus +
Sonchus arvensis +
subspecies +
usually larger +
equaling +
perennial +