Cirsium scariosum Nuttall (Q3029)
Cirsium scariosum is a taxon with the rank species within the genus Cirsium
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Cirsium scariosum Nuttall
|
Cirsium scariosum is a taxon with the rank species within the genus Cirsium
|
Statements
taxon/id/Cirsium scariosum Nuttall
0 references
Cirsium scariosum Nuttall
Cirsium scariosum
Nuttall
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 19: Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford University Press, New York.
accepted
1 reference
CA-AB
1 reference
CA-BC
1 reference
CA-QC
1 reference
US-AZ
1 reference
US-CA
1 reference
US-CO
1 reference
US-ID
1 reference
US-MT
1 reference
US-NM
1 reference
US-NV
1 reference
US-OR
1 reference
US-UT
1 reference
US-WA
1 reference
US-WY
1 reference
Stems absent, or with crowded branches from near base, or simple and erect, often fleshy and thickened, glabrous to thinly gray tomentose, often villous with septate trichomes.
1 reference
Leaves: blades linear to elliptic, 5–20 × 3–7 cm, plane to strongly undulate, unlobed or shallowly to deeply pinnatifid, lobes linear-lanceolate to broadly triangular, closely spaced, spreading, spinose-dentate or lobed, main spines slender to stout, 2–15+ mm, abaxial faces glabrous or thinly to densely tomentose, ± villous with septate trichomes along the veins, glabrate or trichomes persistent, adaxial thinly arachnoid tomentose and soon glabrescent;
1 reference
basal often present at flowering, sessile or winged-petiolate;
1 reference
cauline many in caulescent forms, reduced distally or not, winged-petiolate or distal sessile;
1 reference
distal often well developed, similar to proximal, sometimes much narrower and bractlike.
1 reference
Heads 1–many, erect, borne singly or often densely crowded in spiciform, racemiform, or subcapitate arrays, especially in acaulescent or short-caulescent plants, often closely subtended by distalmost leaves.
1 reference
Peduncles 0–10 cm, leafy-bracted.
1 reference
Involucres ovoid to hemispheric, 2–4 × 1.5–6 cm, loosely arachnoid on phyllary margins or glabrate.
1 reference
Phyllaries in 5–10 series, imbricate, ovate or lanceolate (outer) to linear or linear-lanceolate (inner), margins (outer) entire or scarious-fringed, abaxial faces without glutinous ridge;
1 reference
outer and mid appressed, spines erect to spreading 0.5–13 mm;
1 reference
apices of mid and inner narrowed and scabro-denticulate or with expanded, erose-dentate tips, spineless or tipped with flattened spines.
1 reference
Corollas white or pale lavender to purple, 20–40 mm, tubes 7–24 mm, throats 4–12 mm (noticeably larger than tubes), lobes 4–10 mm;
1 reference
style tips 3.5–8 mm.
1 reference
Cypselae light to dark-brown, 4–6.5 mm, apical collars usually colored like body;
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
glabrous
thinly gray tomentose
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
strongly undulate unlobed or
1 reference
strongly undulate unlobed or
1 reference
linear-lanceolate
broadly triangular
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
glabrous or
thinly densely tomentose
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
reduced
distally; distally; not
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
lanceolate
linear or linear-lanceolate
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference