Difference between revisions of "Cirsium hookerianum Nuttall (Q3017) "

Flora Commons

accepted id

Cirsium hookerianum Nuttall

Cirsium hookerianum

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.

taxon status

accepted

1 reference

taxon name

Cirsium hookerianum

1 reference

taxon authority

Nuttall

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

chardon de Hooker (French)

1 reference

Hooker's thistle (English)

1 reference

white thistle (English)

1 reference

Hooker’s or white thistle (English)

1 reference

VasCan taxon numeric id

2997

1 reference

distribution

CA-BC

establishment of distribution

occurrence status

present

native

1 reference

publication

Klinkenberg, B. (ed.). 2010+. E-Flora BC: Electronic Atlas of the Plants of British Columbia. Lab. for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver, B.C. http://www.eflora.bc.ca http://www.eflora.bc.ca/

CA-AB

establishment of distribution

occurrence status

present

native

1 reference

publication

Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.

CA-AB

Alta.

1 reference

CA-BC

B.C.

1 reference

US-ID

Idaho

1 reference

US-MT

Mont.

1 reference

US-WA

Wash.

1 reference

US-WY

Wyo.

1 reference

parent taxon

Cirsium Miller

1 reference

taxon habit

herb

1 reference

GBIF taxon key

3113626

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

phenology

Flowering summer (Jun–Sep).

1 reference

taxon habitat

moist soil

1 reference

grasslands

1 reference

aspen parkland

1 reference

forest edges

1 reference

openings

1 reference

subalpine

1 reference

alpine meadows

1 reference

elevation

600–2900 m

measurement range from

600 meter

measurement range to

2,900 meter

1 reference

special status

E

1 reference

taxon description fragment

Stems usually 1 and erect, less commonly several and ascending, simple to sparingly short-branched in distal 1/2, variably villous with jointed trichomes, and/or finely arachnoid, or ± glabrate;

1 reference

d0_s2

branches on distal stems 0–many, short, ascending.

1 reference

d0_s3

Leaves: blades linear-oblong to elliptic, 5–25 × 1–8 cm, subentire to coarsely dentate or deeply pinnatifid, lobes lance-oblong to broadly triangular, spinulose to spiny-dentate or shallowly lobed, main spines 2–10 mm, abaxial faces usually ± densely gray or white-tomentose with felted arachnoid trichomes, ± villous to tomentose along major veins with septate trichomes, sometimes glabrous or glabrate, adaxial ± green, glabrous to thinly arachnoid, often ± villous or tomentose with septate trichomes;

1 reference

d0_s4

basal often present at flowering, spiny winged-petiolate or sessile;

1 reference

d0_s5

principal cauline well distributed, proximally winged-petiolate, distally sessile, gradually reduced, bases sometimes short-decurrent;

1 reference

d0_s6

distal ± reduced, often narrower than proximal, sometimes with non-pigmented bases, sometimes pectinately spiny.

1 reference

d0_s7

Heads 1–many, borne singly or crowded in spiciform, racemiform, subcapitate, or sometimes more openly branched corymbiform arrays.

1 reference

d0_s8

Peduncles 0–8+ cm.

1 reference

d0_s9

Involucres (green or often purplish), broadly ovoid, 2–3.3 × 1.5–4 cm, loosely to densely villous with septate trichomes to tomentose and/or arachnoid.

1 reference

d0_s10

Phyllaries in 4–8 series, imbricate to subequal, bases short-appressed, entire, abaxial faces with or without narrow glutinous ridge, apices stiffly spreading to ascending, linear, long, plane, spines straight, slender, 3–5 mm;

1 reference

d0_s11

apices of inner flexuous, sometimes expanded and erose.

1 reference

d0_s12

Corollas white, ochroleucous, or occasionally pink, 20–28 mm, tubes 10–13 mm, throats 6.5–9 mm, lobes 5–7 mm;

1 reference

d0_s13

style tips 3–5.5 mm.

1 reference

d0_s14

Cypselae dark-brown, 5–6.5 mm, apical collars not differentiated;

1 reference

d0_s15

pappi 18–22 mm. 2n = 34.

1 reference

d0_s16

morphology statement

stem

1

1 reference

d0_s2

stem

erect

1 reference

d0_s2

inflorescence branch

height

short

1 reference

d0_s3

inflorescence branch

ascending

1 reference

d0_s3

stem

0

many

1 reference

d0_s3

linear-oblong

elliptic

1 reference

d0_s4

5

25

1 reference

d0_s4

width

1

8

1 reference

d0_s4

subentire

coarsely dentate or deeply pinnatifid

1 reference

d0_s4

lance-oblong

broadly triangular

1 reference

d0_s4

spinulose

1 reference

d0_s4

spiny-dentate

1 reference

d0_s4

lobed

shallowly

1 reference

d0_s4

2

10

1 reference

d0_s4

gray

usually more or less densely

1 reference

d0_s4

white-tomentose

1 reference

d0_s4

less villous

tomentose

1 reference

d0_s4

glabrous

sometimes

1 reference

d0_s4

glabrate

1 reference

d0_s4

green

more or less

1 reference

d0_s4

glabrous

thinly arachnoid

1 reference

d0_s4

villous

often more or less

1 reference

d0_s4

tomentose

1 reference

d0_s4

presence

absent

often

1 reference

d0_s5

spiny

1 reference

d0_s5

winged-petiolate

1 reference

d0_s5

sessile

1 reference

d0_s5

distributed

well

1 reference

d0_s6

winged-petiolate

proximally

1 reference

d0_s6

sessile

distally

1 reference

d0_s6

reduced

gradually

1 reference

d0_s6

short-decurrent

sometimes

1 reference

d0_s6

reduced

more or less

1 reference

d0_s7

width

often narrower

1 reference

d0_s7

spiny

sometimes pectinately

1 reference

d0_s7

non-pigmented

1 reference

d0_s7

inflorescence peduncle

0

8

1 reference

d0_s9

ovoid

broadly

1 reference

d0_s10

2

3.3

1 reference

d0_s10

width

1.5

4

1 reference

d0_s10

villous

loosely to densely

1 reference

d0_s10

inflorescence phyllary

imbricate

1 reference

d0_s11

inflorescence phyllary

subequal

1 reference

d0_s11

fixation

short-appressed

1 reference

d0_s11

entire

1 reference

d0_s11

stiffly spreading

ascending

1 reference

d0_s11

course

linear

1 reference

d0_s11

long

1 reference

d0_s11

plane

1 reference

d0_s11

course

straight

1 reference

d0_s11

slender

1 reference

d0_s11

3

5

1 reference

d0_s11

course

flexuous

1 reference

d0_s12

expanded

sometimes

1 reference

d0_s12

relief

erose

1 reference

d0_s12

white

1 reference

d0_s13

ochroleucous

1 reference

d0_s13

pink

occasionally

1 reference

d0_s13

ochroleucous

1 reference

d0_s13

pink

occasionally

1 reference

d0_s13

20

28

1 reference

d0_s13

inflorescence flower corolla tube

10

13

1 reference

d0_s13

inflorescence flower perianth throat

6.5

9

1 reference

d0_s13

5

7

1 reference

d0_s13

inflorescence phyllary tip

3

5.5

1 reference

d0_s14

root collar

variability

differentiated

not

1 reference

d0_s15

fruit pappus

18

22

1 reference

d0_s16

chromosome

34

1 reference

d0_s16

jointed

1 reference

d0_s2

arachnoid

finely

1 reference

d0_s2

glabrate

more or less

1 reference

d0_s2

arachnoid

finely

1 reference

d0_s2

glabrate

more or less

1 reference

d0_s2

felted

1 reference

d0_s4

arachnoid

1 reference

d0_s4

inflorescence flower petal venation vein

major

1 reference

d0_s4

septate

1 reference

d0_s4

septate

1 reference

d0_s4

1

many

1 reference

d0_s8

or

singly

1 reference

d0_s8

crowded

1 reference

d0_s8

racemiform

1 reference

d0_s8

subcapitate

1 reference

d0_s8

branched

sometimes; openly

1 reference

d0_s8

corymbiform

1 reference

d0_s8

septate

1 reference

d0_s10

tomentose

1 reference

d0_s10

arachnoid

1 reference

d0_s10

fruit cypsela

dark-brown

1 reference

d0_s15

fruit cypsela

5

6.5

1 reference