Difference between revisions of "Cirsium brevistylum Cronquist (Q3011) "

taxon name

Cirsium brevistylum

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taxon authority

Cronquist

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taxon rank

species

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taxon status

accepted

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common name

chardon à styles courts (French)

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short-style thistle (English)

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clustered thistle (English)

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Indian thistle (English)

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Indian or clustered or short-style thistle (English)

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VasCan taxon numeric id

2989

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distribution

CA-BC

establishment of distribution

occurrence status

present

native

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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-BC

B.C.

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US-CA

Calif.

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US-ID

Idaho

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US-MT

Mont.

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US-OR

Oreg.

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US-WA

Wash.

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parent taxon

Cirsium Miller

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taxon habit

herb

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GBIF taxon key

3113218

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering spring–summer (Apr–Sep).

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taxon habitat

coastal meadows

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marshes

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swamps

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riparian woodlands

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moist sites

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coastal scrub

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chaparral

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coastal woodlands

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mixed conifer-hardwood forests

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coniferous forests

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elevation

0–1000 m

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special status

E

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taxon description fragment

Stems usually 1, erect, simple or branched in distal 1/2, loosely to densely villous or viscid-pilose with jointed trichomes, often arachnoid below heads;

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d0_s2

branches 0–many, ascending.

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d0_s3

Leaves: blades oblong to elliptic or oblanceolate, 15–35 × 2–10 cm, flat to ± undulate, coarsely dentate to shallowly pinnatifid, lobes broadly triangular, spinulose to spiny-dentate or shallowly lobed, main spines slender, 3–7 mm, abaxial faces thinly gray-tomentose, villous along major veins, sometimes glabrescent, adaxial sparsely villous or viscid-pilose along midveins with jointed trichomes;

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d0_s4

basal often absent at flowering, spiny winged-petiolate;

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d0_s5

principal cauline well distributed, gradually reduced, proximal winged-petiolate, mid and distal sessile, bases clasping or short-decurrent;

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d0_s6

distal moderately to strongly reduced, often spinier than the proximal.

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d0_s7

Heads 1–many, ± erect, usually crowded in subcapitate to tight corymbiform arrays, closely subtended by clustered ± leafy bracts.

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d0_s8

Peduncles 0–1 (–30) cm.

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d0_s9

Involucres hemispheric to campanulate, 2.5–3.5 cm, 2.5–4 cm diam., loosely to densely arachnoid, phyllaries connected by long septate or non-septate trichomes.

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d0_s10

Phyllaries radiating in 5–10 series, subequal, green, linear-acicular, outermost margins sometimes spiny-fringed, otherwise all entire or minutely serrulate, abaxial faces without glutinous ridge;

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d0_s11

outer and mid-bases short-appressed, apices stiffly radiating to ascending, long, very narrow, spines straight, slender, 3–5 m;

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d0_s12

apices of inner straight, flat.

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d0_s13

Corollas white to pink or purple, very slender, 20–25 mm, tubes 10–17 mm, throats 4–5 mm, lobes filiform with knoblike tips, 3–5 mm;

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d0_s14

style tips 2–4 mm, included or exserted (only 1–2 mm beyond corolla lobes).

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d0_s15

Cypselae brown, 3–4.5 mm, apical collars stramineous, 0.2 mm;

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d0_s16

pappi 10–22 mm. 2n = 34.

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d0_s17

morphology statement

1

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d0_s2

erect

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d0_s2

simple

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d0_s2

branched

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d0_s2

villous

loosely to densely; densely

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d0_s2

viscid-pilose

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d0_s2

arachnoid

often

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d0_s2

inflorescence branch

0

many

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d0_s3

inflorescence branch

ascending

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d0_s3

oblong

elliptic or oblanceolate

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d0_s4

length

15

35

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d0_s4

width

2

10

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d0_s4

flat

more or less undulate coarsely dentate

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d0_s4

flat

more or less undulate coarsely dentate

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d0_s4

triangular

broadly

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d0_s4

spinulose

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d0_s4

3

7

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d0_s4

spiny-dentate

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d0_s4

lobed

shallowly

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d0_s4

slender

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d0_s4

gray-tomentose

thinly

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d0_s4

villous

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d0_s4

glabrescent

sometimes

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d0_s4

villous

sparsely

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d0_s4

viscid-pilose

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d0_s4

presence

absent

often

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d0_s5

spiny

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d0_s5

winged-petiolate

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d0_s5

distributed

well

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d0_s6

reduced

gradually

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d0_s6

winged-petiolate

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d0_s6

sessile

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d0_s6

inflorescence phyllaries base

clasping

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d0_s6

inflorescence phyllaries base

short-decurrent

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d0_s6

reduced

moderately to strongly

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d0_s7

often spinier

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d0_s7

inflorescence peduncle bract

growth form

clustered

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d0_s8

inflorescence peduncle bract

leafy

more or less

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d0_s8

inflorescence peduncle

atypical some measurement

1

30

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d0_s9

inflorescence peduncle

0

1

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d0_s9

hemispheric

campanulate

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d0_s10

2.5

3.5

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d0_s10

diameter

2.5

4

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d0_s10

arachnoid

loosely to densely

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d0_s10

fusion

connected

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d0_s10

radiating

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d0_s11

subequal

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d0_s11

green

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d0_s11

linear-acicular

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d0_s11

inflorescence palea margin

spiny-fringed

sometimes

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d0_s11

inflorescence palea margin

entire

otherwise

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d0_s11

inflorescence palea margin

serrulate

minutely

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d0_s11

radiating

stiffly

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d0_s12

ascending

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d0_s12

length

long

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d0_s12

width

narrow

very

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d0_s12

course

straight

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d0_s12

slender

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d0_s12

3

5

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d0_s12

prominence

flat

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d0_s13

inflorescence flower corolla

white

pink or purple

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d0_s14

inflorescence flower corolla

slender

very

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d0_s14

inflorescence flower corolla

20

25

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d0_s14

inflorescence flower corolla tube

10

17

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d0_s14

inflorescence flower perianth throat

4

5

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d0_s14

filiform

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d0_s14

3

5

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d0_s14

knoblike

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d0_s14

2

4

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d0_s15

position

included

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d0_s15

position

exserted

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d0_s15

root collar

stramineous

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d0_s16

root collar

0.2

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d0_s16

fruit pappus

10

22

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d0_s17

chromosome

34

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d0_s17

jointed

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d0_s2

inflorescence flower petal venation vein

major

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d0_s4

jointed

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d0_s4

general structure head

1

many

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d0_s8

general structure head

erect

more or less

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d0_s8

general structure head

crowded

usually

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d0_s8

general structure bundle array

subcapitate

tight corymbiform

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d0_s8

long

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d0_s10

septate

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d0_s10

non-septate

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d0_s10

fruit cypsela

brown

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d0_s16

fruit cypsela

3

4.5

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