Taraxacum hyparcticum Dahlstedt (Q3183)

taxon name

Taraxacum hyparcticum

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taxon authority

Dahlstedt

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taxon rank

species

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taxon status

accepted

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common name

pissenlit du Grand Nord (French)

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high arctic dandelion (English)

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High-Arctic dandelion (English)

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VasCan taxon numeric id

3611

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distribution

CA-BC

present

native

1 reference

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-YT

present

native

1 reference

Bennett, B., P.M. Catling, W.J. Cody & G.W. Argus. 2010. New records of vascular plants in the Yukon Territory VIII. Canadian Field Naturalist 124 (1): 1-27. http://canadianfieldnaturalist.ca/index.php/cfn/article/view/1025

CA-NT

present

native

1 reference

Porsild, A.E. & W.J. Cody. 1980. Vascular Plants of the Continental Northwest Territories, Canada. National Museum of Natural Sciences, Ottawa, Ont. 667 pp.

CA-NU

present

native

1 reference

Aiken, S.G., M.J. Dallwitz, L.L. Consaul, C.L., McJannet, R.L., Boles, G.W. Argus, J.M. Gillett, P.J. Scott, R. Elven, M.C. LeBlanc, L.J. Gillespie, A.K. Brysting, H. Solstad & J.G. Harris. 2007. Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. [CD-ROM] NRC Research Press, National Research Council of Canada, Ottawa.

Greenland, GL

doubtful

1 reference

Böcher, T.W., B. Fredskild, K. Holmen & K. Jakobsen. 1978. Grønlands Flora. P. Haase & Søns Forlag, København. 326 pp.

Greenland

1 reference

CA-NT

original value

N.W.T.

1 reference

CA-NU

original value

Nunavut

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US-AK

original value

Alaska

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Eurasia

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parent taxon

Taraxacum F. H. Wiggers

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taxon habit

herb

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GBIF taxon key

5394357

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering summer.

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taxon habitat

dry

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drained areas

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tundra

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sand terraces

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low center polygons

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old surfaces

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eroded knolls

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marine\/lacustrine deposits

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rocky streambeds

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dry slopes

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sandy

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elevation

20–1010 m

measurement range from

20 meter

measurement range to

1,010 meter

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taxon description fragment

Plants (3–) 5–12 (–30) cm;

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d0_s0

taproots occasionally branched.

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d0_s1

Stems 1–5, ascending to erect, pinkish to reddish or purplish, (barely exceeding foliage), glabrous or glabrate (rarely sparsely villous and villous distally).

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d0_s2

Leaves fewer than 10, usually patent, rarely erect;

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d0_s3

petioles sometimes narrowly winged;

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d0_s4

blades oblanceolate (often ± runcinate), 2–12+ × (0.3–) 0.5–1.2 cm, bases attenuate, margins lobed deeply and regularly to denticulate or subentire, lobes 5–6 pairs, straight to retrorse, triangular to deltate, teeth triangular 0–1 on lobes or 1–4 shallow pairs if subentire, acute to ± obtuse, apices obtuse to ± acute, faces glabrous.

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d0_s5

Calyculi of 10–14, spreading to appressed (thinner than phyllaries), dark green, broadly ovate or ovate to oblong bractlets in 2–3 series, 6–10 × 3.4–5 mm, margins narrowly hyaline, scarious, apices abruptly acuminate to caudate, strongly horned, tip ± scarious, erose.

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d0_s6

Involucres dark green to bluish black or dark purplish green, narrowly campanulate, 15–30 mm.

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d0_s7

Phyllaries 8–14 in 2 series, lanceolate to lanceovate, 1.5–3.5 mm wide, margins narrowly (outer) to widely scarious in proximal 1/3 (inner), narrowly so distally, apices long-acuminate, sometimes callous, hornless (rarely very small horns), tips white-scarious, erose, rounded.

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d0_s8

Florets 25–50;

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d0_s9

corollas cream-colored to white or pink-tinged distally, outer pinkish-striped abaxially, 15–20 × 1.2–3 mm.

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d0_s10

Cypselae tan or straw-colored to brown (or reddish-brown), sometimes grayish, bodies obovoid to oblanceoloid, 3–3.7 (–4) mm, mostly broad, cones conic, 0.4–0.7 mm, beaks slender, 3.5–4.5 mm, ribs 10–13 (5–6 prominent), mostly broad, faces proximally tuberculate, muricate in distal 1/2;

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d0_s11

2n = [24, 32, 40? some erroneous reports in literature under this name from Eurasia].

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d0_s13

morphology statement

3

5

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d0_s0

12

30

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d0_s0

5

12

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d0_s0

growth form

plant

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d0_s0

root

branched

occasionally

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d0_s1

1

5

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d0_s2

ascending

erect

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d0_s2

pinkish

reddish or purplish

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d0_s2

pubescence

glabrous

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d0_s2

pubescence

glabrate

1 reference

d0_s2

leaf

0

10

1 reference

d0_s3

leaf

patent

usually

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d0_s3

leaf

erect

rarely

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d0_s3

leaf petiole

winged

sometimes narrowly

1 reference

d0_s4

oblanceolate

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d0_s5

length

2

12

1 reference

d0_s5

atypical width

0.3

0.5

1 reference

d0_s5

0.5

1.2

1 reference

d0_s5

inflorescence phyllaries base

attenuate

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d0_s5

lobed

deeply

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d0_s5

denticulate

regularly

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d0_s5

subentire

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d0_s5

5

6

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d0_s5

course

straight

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d0_s5

retrorse

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d0_s5

triangular

deltate

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d0_s5

depth

shallow

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d0_s5

subentire

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d0_s5

1

4

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d0_s5

depth

shallow

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d0_s5

subentire

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d0_s5

acute

more or less obtuse

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d0_s5

depth

shallow

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d0_s5

subentire

1 reference

d0_s5

obtuse

more or less acute

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d0_s5

leaf face

pubescence

glabrous

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d0_s5

inflorescence calyculus

spreading

appressed

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d0_s6

inflorescence calyculus

dark green

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d0_s6

inflorescence calyculus

ovate

oblong

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d0_s6

inflorescence bractlet

length

6

10

1 reference

d0_s6

inflorescence bractlet

3.4

5

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d0_s6

hyaline

narrowly

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d0_s6

scarious

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d0_s6

abruptly acuminate

caudate

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d0_s6

horned

strongly

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d0_s6

scarious

more or less

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d0_s6

erose

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d0_s6

dark green

bluish black or dark purplish

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d0_s7

green

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d0_s7

campanulate

narrowly

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d0_s7

15

30

1 reference

d0_s7

inflorescence phyllary

8

14

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d0_s8

inflorescence phyllary

lanceolate

lanceovate

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d0_s8

inflorescence phyllary

1.5

3.5

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d0_s8

scarious

narrowly to widely

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d0_s8

long-acuminate

narrowly; distally

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d0_s8

callous

sometimes

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d0_s8

hornless

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d0_s8

white-scarious

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d0_s8

erose

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d0_s8

rounded

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d0_s8

inflorescence flower floret

25

50

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d0_s9

cream-colored

white or pink-tinged

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d0_s10

position

outer

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d0_s10

pinkish-striped

abaxially

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d0_s10

length

15

20

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d0_s10

1.2

3

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d0_s10

fruit

straw-colored

brown

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d0_s11

fruit

grayish

sometimes

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d0_s11

obovoid

oblanceoloid

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d0_s11

3.7

4

1 reference

d0_s11

3

3.7

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d0_s11

broad

mostly

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d0_s11

cone

conic

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d0_s11

cone

0.4

0.7

1 reference

d0_s11

fruit beak

size

slender

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d0_s11

fruit beak

3.5

4.5

1 reference

d0_s11

leaf rib

10

13

1 reference

d0_s11

leaf rib

broad

mostly

1 reference

d0_s11

leaf face

tuberculate

proximally

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d0_s11

leaf face

muricate

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d0_s11

whitish

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d0_s13

sordid

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d0_s13

5.5

7

1 reference

d0_s13

5

5.5

1 reference