Draba arctica J. Vahl in G. C. Oeder et al. (Q3500)

taxon name

Draba arctica

1 reference

taxon authority

J. Vahl

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

drave arctique (French)

1 reference

arctic draba (English)

1 reference

arctic whitlowgrass (English)

1 reference

VasCan taxon numeric id

3993

1 reference

distribution

CA-QC

present

native

1 reference

Herbier Louis-Marie (QFA). Université Laval, QC. Spécimen. http://www.herbier.ulaval.ca

CA-NT

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.

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

present

native

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-NU

original value

Nunavut

1 reference

Europe (Norway [Svalbard])

1 reference

parent taxon

Draba Linnaeus

1 reference

taxon habit

herb

1 reference

GBIF taxon key

3049881

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

phenology

Flowering Jun–Jul.

1 reference

taxon habitat

clay flats

1 reference

gravel

1 reference

beaches

1 reference

limestone outcrops

1 reference

talus

1 reference

elevation

0-500 m

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taxon description fragment

rarely scapose.

1 reference

d0_s3

Stems unbranched, 0.3–1.7 (–2.4) dm, pubescent, trichomes 4–10-rayed (rays sometimes branched), 0.1–0.3 mm, with fewer, simple ones, to 0.7 mm.

1 reference

d0_s4

petiolate;

1 reference

d0_s6

petiole base ciliate, (trichomes simple, 0.2–0.8 mm);

1 reference

d0_s7

blade oblanceolate to narrowly obovate, 0.4–2.3 (–3) cm × 1.5–6.5 mm, margins usually entire, rarely with 1 tooth on each side, surfaces densely pubescent with minutely stalked, 8–12-rayed, stellate trichomes, 0.2–0.4 mm, sometimes with coarser, simple or 2-rayed ones, (midvein distinct abaxially).

1 reference

d0_s8

sessile;

1 reference

d0_s10

blade ovate or oblong to lanceolate, margins entire, surfaces pubescent as basal.

1 reference

d0_s11

Racemes 3–18 (–25) -flowered, ebracteate, elongated in fruit;

1 reference

d0_s12

Fruiting pedicels divaricate-ascending or ascending, straight, (1.5–) 2–6 mm, pubescent, trichomes stalked, stellate, and, sometimes, simple.

1 reference

d0_s14

Flowers: sepals ovate, 2–2.5 mm, pubescent, (trichomes short-stalked, 2-rayed or 3-rayed, and simple);

1 reference

d0_s15

petals white, spatulate to obovate, 3.5–6 × 1.8–2 mm;

1 reference

d0_s16

anthers ovate, 0.3–0.4 mm.

1 reference

d0_s17

Fruits oblong to lanceolate, plane, slightly flattened, (5–) 6–11 × 2–3 mm;

1 reference

d0_s18

valves pubescent, trichomes short-stalked, 2–5-rayed (some rays branched), 0.05–0.3 mm;

1 reference

d0_s19

ovules 20–32 per ovary;

1 reference

d0_s20

style 0.1–1 mm (stigma distinctly wider than style).

1 reference

d0_s21

Seeds ovoid, 0.8–1.1 × (0.6–) 0.7–0.8 mm. 2n = 80.

1 reference

d0_s22

morphology statement

stem caudex

simple

1 reference

d0_s3

stem caudex

branched

1 reference

d0_s3

stem caudex

scapose

rarely

1 reference

d0_s3

unbranched

1 reference

d0_s4

atypical some measurement

1.7

2.4

1 reference

d0_s4

0.3

1.7

1 reference

d0_s4

pubescent

1 reference

d0_s4

arrangement

rosulate

1 reference

d0_s6

petiolate

1 reference

d0_s6

inflorescence phyllaries base

ciliate

1 reference

d0_s7

oblanceolate

narrowly obovate

1 reference

d0_s8

atypical length

2.3

3

1 reference

d0_s8

0.4

2.3

1 reference

d0_s8

1.5

6.5

1 reference

d0_s8

inflorescence palea margin

entire

usually

1 reference

d0_s8

presence

absent

1 reference

d0_s10

atypical quantity

1

3

1 reference

d0_s10

quantity

1

1 reference

d0_s10

sessile

1 reference

d0_s10

oblong

lanceolate

1 reference

d0_s11

inflorescence palea margin

entire

1 reference

d0_s11

leaf rachis

course

flexuous

not

1 reference

d0_s14

leaf rachis

pubescent

1 reference

d0_s14

inflorescence flower sepal

ovate

1 reference

d0_s15

inflorescence flower sepal

2

2.5

1 reference

d0_s15

inflorescence flower sepal

pubescent

1 reference

d0_s15

coloration

white

1 reference

d0_s16

spatulate

obovate

1 reference

d0_s16

3.5

6

1 reference

d0_s16

1.8

2

1 reference

d0_s16

inflorescence flower anther

ovate

1 reference

d0_s17

inflorescence flower anther

0.3

0.4

1 reference

d0_s17

oblong

lanceolate

1 reference

d0_s18

plane

1 reference

d0_s18

flattened

slightly

1 reference

d0_s18

atypical length

5

6

1 reference

d0_s18

6

11

1 reference

d0_s18

2

3

1 reference

d0_s18

inflorescence flower gynoecium pistil ovule

quantity

20

32

1 reference

d0_s20

inflorescence flower gynoecium pistil style

0.1

1

1 reference

d0_s21

ovoid

1 reference

d0_s22

0.8

1.1

1 reference

d0_s22

atypical width

0.6

0.7

1 reference

d0_s22

0.7

0.8

1 reference

d0_s22

chromosome

quantity

80

1 reference

d0_s22

0.1

0.3

1 reference

d0_s4

0

0.7

1 reference

d0_s4

stalked

minutely

1 reference

d0_s8

arrangement

stellate

1 reference

d0_s8

inflorescence raceme

3-18(-25)-flowered

1 reference

d0_s12

inflorescence raceme

ebracteate

1 reference

d0_s12

inflorescence raceme

elongated

1 reference

d0_s12

stalked

1 reference

d0_s14

arrangement

stellate

1 reference

d0_s14

simple

sometimes

1 reference

d0_s14

general structure valve

pubescent

1 reference

d0_s19

short-stalked

1 reference

d0_s19

0.05

0.3

1 reference