Draba borealis de Candolle (Q3503)

taxon name

Draba borealis

1 reference

taxon authority

de Candolle

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

drave boréale (French)

1 reference

boreal draba (English)

1 reference

northern draba (English)

1 reference

boreal whitlowgrass (English)

1 reference

northern whitlowgrass (English)

1 reference

VasCan taxon numeric id

3996

1 reference

distribution

CA-BC

present

native

1 reference

Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.

CA-AB

present

native

1 reference

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

CA-YT

present

native

1 reference

Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.

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.

CA-AB

Alta.

1 reference

CA-BC

B.C.

1 reference

CA-NT

N.W.T.

1 reference

CA-NU

Nunavut

1 reference

CA-YT

Yukon

1 reference

US-AK

Alaska

1 reference

e Asia (Japan)

1 reference

e Asia (Russian Far East)

1 reference

parent taxon

Draba Linnaeus

1 reference

taxon habit

herb

1 reference

GBIF taxon key

3049779

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

phenology

Flowering Jun–Jul.

1 reference

taxon habitat

rock outcrops

1 reference

talus

1 reference

gravelly terraces

1 reference

meadows

1 reference

forest edges

1 reference

thickets

1 reference

roadsides

1 reference

grassy areas

1 reference

alpine tundra

1 reference

elevation

0-2400 m

1 reference

taxon description fragment

not scapose.

1 reference

d0_s2

Stems usually unbranched, rarely branched, (0.4–) 1–3.6 (–5.5) dm, often hirsute proximally, trichomes usually simple and 2-rayed, 0.5–1.1 mm, with short-stalked, 3–8-rayed ones, 0.1–0.4 mm (rarely simple trichomes absent distally).

1 reference

d0_s3

Basal leaves rosulate;

1 reference

d0_s4

blade ovate or obovate to oblanceolate, (0.5–) 1–4.2 (–6) cm × 3–10 (–25) mm, margins dentate or denticulate, surfaces pubescent, trichomes short-stalked, cruciform, or (2–) 4–6-rayed, 0.2–0.6 mm (principal rays usually simple, rarely 1 or 2 with a lateral branch, sometimes appearing to 10-rayed).

1 reference

d0_s5

sessile;

1 reference

d0_s7

blade ovate, margins entire or dentate, surfaces pubescent as basal or adaxially with some simple trichomes.

1 reference

d0_s8

Racemes (6–) 8–20 (–35) -flowered, ebracteate, elongated in fruit;

1 reference

d0_s9

Fruiting pedicels divaricate or ascending, straight, (2–) 4–8 (–13) mm, pubescent as stem.

1 reference

d0_s11

Flowers: sepals ovate, 2–3 mm, pubescent, (trichomes simple);

1 reference

d0_s12

petals white, obovate, 4–6 × 2–3 mm;

1 reference

d0_s13

anthers ovate, 0.3–0.5 mm.

1 reference

d0_s14

Fruits ovate to broadly oblong or lanceolate, slightly twisted or plane, flattened, (5–) 7–12 × 2.5–4.5 mm;

1 reference

d0_s15

valves pubescent, trichomes simple and short-stalked, 2–4-rayed, 0.1–0.4 mm;

1 reference

d0_s16

ovules 16–28 (–30) per ovary;

1 reference

d0_s17

style 0.2–0.6 (–0.8) mm, glabrous.

1 reference

d0_s18

Seeds oblong, 1–1.5 × 0.7–1 mm. 2n = 64, 80.

1 reference

d0_s19

morphology statement

stem caudex

branched

1 reference

d0_s2

stem caudex

scapose

not

1 reference

d0_s2

unbranched

usually

1 reference

d0_s3

branched

rarely

1 reference

d0_s3

0.4

1

1 reference

d0_s3

3.6

5.5

1 reference

d0_s3

1

3.6

1 reference

d0_s3

hirsute

often; proximally

1 reference

d0_s3

arrangement

rosulate

1 reference

d0_s4

obovate

oblanceolate

1 reference

d0_s5

atypical length

0.5

1

1 reference

d0_s5

atypical length

4.2

6

1 reference

d0_s5

1

4.2

1 reference

d0_s5

atypical width

10

25

1 reference

d0_s5

3

10

1 reference

d0_s5

dentate

1 reference

d0_s5

denticulate

1 reference

d0_s5

atypical quantity

7

12

1 reference

d0_s7

3

7

1 reference

d0_s7

sessile

1 reference

d0_s7

ovate

1 reference

d0_s8

entire

1 reference

d0_s8

dentate

1 reference

d0_s8

leaf rachis

course

flexuous

not

1 reference

d0_s11

leaf rachis

pubescent

1 reference

d0_s11

arrangement

divaricate

1 reference

d0_s11

orientation

ascending

1 reference

d0_s11

course

straight

1 reference

d0_s11

2

4

1 reference

d0_s11

8

13

1 reference

d0_s11

4

8

1 reference

d0_s11

pubescent

1 reference

d0_s11

inflorescence flower sepal

ovate

1 reference

d0_s12

inflorescence flower sepal

2

3

1 reference

d0_s12

inflorescence flower sepal

pubescent

1 reference

d0_s12

coloration

white

1 reference

d0_s13

obovate

1 reference

d0_s13

4

6

1 reference

d0_s13

2

3

1 reference

d0_s13

inflorescence flower anther

ovate

1 reference

d0_s14

inflorescence flower anther

0.3

0.5

1 reference

d0_s14

ovate

broadly oblong or lanceolate

1 reference

d0_s15

twisted

slightly

1 reference

d0_s15

plane

1 reference

d0_s15

flattened

1 reference

d0_s15

atypical length

5

7

1 reference

d0_s15

7

12

1 reference

d0_s15

2.5

4.5

1 reference

d0_s15

inflorescence flower gynoecium pistil ovule

atypical quantity

28

30

1 reference

d0_s17

inflorescence flower gynoecium pistil ovule

16

28

1 reference

d0_s17

inflorescence flower gynoecium pistil style

0.6

0.8

1 reference

d0_s18

inflorescence flower gynoecium pistil style

0.2

0.6

1 reference

d0_s18

inflorescence flower gynoecium pistil style

glabrous

1 reference

d0_s18

seed

oblong

1 reference

d0_s19

seed

1

1.5

1 reference

d0_s19

seed

0.7

1

1 reference

d0_s19

chromosome

64

1 reference

d0_s19

chromosome

80

1 reference

d0_s19

simple

usually

1 reference

d0_s3

0.5

1.1

1 reference

d0_s3

0.1

0.4

1 reference

d0_s3

short-stalked

1 reference

d0_s5

cruciform

1 reference

d0_s5

0.2

0.6

1 reference

d0_s5

simple

1 reference

d0_s8

simple

1 reference

d0_s8

inflorescence raceme

(6-)8-20(-35)-flowered

1 reference

d0_s9

inflorescence raceme

ebracteate

1 reference

d0_s9

inflorescence raceme

elongated

1 reference

d0_s9

general structure valve

pubescent

1 reference

d0_s16

simple

1 reference

d0_s16

short-stalked

1 reference

d0_s16

0.1

0.4

1 reference