Arabis nuttallii (Kuntze) B. L. Robinson in A. Gray et al. (Q3488)

taxon name

Arabis nuttallii

1 reference

taxon authority

(Kuntze) B.L. Robinson

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taxon rank

species

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taxon status

accepted

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common name

arabette de Nuttall (French)

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Nuttall's rockcress (English)

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VasCan taxon numeric id

3899

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distribution

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-BC

establishment of distribution

occurrence status

present

native

1 reference

publication

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-YT

establishment of distribution

occurrence status

present

native

1 reference

publication

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

CA-AB

Alta.

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CA-BC

B.C.

1 reference

US-ID

Idaho

1 reference

US-MT

Mont.

1 reference

US-UT

Utah

1 reference

US-WA

Wash.

1 reference

US-WY

Wyo.

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parent taxon

Arabis Linnaeus

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taxon habit

herb

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GBIF taxon key

5374896

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering Apr–Aug.

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taxon habitat

subalpine meadows

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slopes

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open woods

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steep slopes

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cliffs

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mossy mats

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dry

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moist slopes

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hillsides

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ridge crests

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elevation

500-3200 m

measurement range from

500 meter

measurement range to

3,200 meter

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special status

E

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taxon description fragment

glabrous or sparsely to densely pubescent, trichomes simple, sometimes subsetiform, (0.3–2 mm), these rarely mixed with fewer, short-stalked, forked ones.

1 reference

d0_s2

Stems simple or few to numerous from base (caudex), erect or ascending, unbranched, 0.5–2.5 (–3.6) dm, (glabrous throughout or pubescent along proximal 1/2, trichomes simple).

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d0_s3

Basal leaves: petiole 0.3–2 (–3.5) cm, (glabrous or ciliate);

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d0_s4

blade narrowly oblanceolate, spatulate, to obovate, 0.4–2 (–3) cm × 3–10 (–15) mm, margins entire, (ciliate or not), apex obtuse, surfaces glabrous or sparsely to densely pubescent, trichomes simple, rarely mixed with forked ones.

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d0_s5

Cauline leaves (1 or) 2–5 (–7);

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d0_s6

blade linear, oblanceolate, oblong, or obovate, 0.5–2.2 (–3) cm × 2–8 (–12) mm, base not auriculate, margins entire, (sometimes ciliate), apex obtuse, surfaces glabrous or, rarely, sparsely pubescent.

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d0_s7

Fruiting pedicels ascending to divaricate, (2–) 5–20 (–30) mm, (glabrous).

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d0_s9

Flowers: sepals (greenish) oblong, 2.5–3.5 × 1.2–1.5 mm, lateral pair saccate basally, (glabrous);

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d0_s10

petals white, oblanceolate to spatulate, (5–) 6–8 × 2–4 mm, apex rounded;

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d0_s11

filaments 2.5–4 mm;

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d0_s12

anthers oblong, 0.6–1 mm.

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d0_s13

Fruits ascending to suberect, (not appressed to rachis), slightly torulose, sometimes slightly curved, (0.7–) 1–2.5 (–2.8) cm × 0.8–1.2 (–1.5) mm;

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d0_s14

valves each with distinct midvein extending full length;

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d0_s15

ovules 10–24 per ovary;

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d0_s16

style 0.5–1.2 (–2) mm, (slender).

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d0_s17

Seeds not winged, broadly ovate, 0.6–1.2 (–1.5) × 0.5–1 mm. 2n = 32.

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d0_s18

morphology statement

simple

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d0_s2

subsetiform

sometimes

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d0_s2

arrangement

mixed

rarely

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d0_s2

simple

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d0_s3

few to numerous

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d0_s3

erect

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d0_s3

ascending

1 reference

d0_s3

unbranched

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d0_s3

2.5

3.6

1 reference

d0_s3

0.5

2.5

1 reference

d0_s3

leaf petiole

2

3.5

1 reference

d0_s4

leaf petiole

0.3

2

1 reference

d0_s4

oblanceolate

narrowly

1 reference

d0_s5

spatulate

obovate

1 reference

d0_s5

spatulate

obovate

1 reference

d0_s5

2

3

1 reference

d0_s5

0.4

2

1 reference

d0_s5

atypical width

10

15

1 reference

d0_s5

3

10

1 reference

d0_s5

inflorescence palea margin

entire

1 reference

d0_s5

inflorescence flower gynoecium pistil style apex

obtuse

1 reference

d0_s5

simple

1 reference

d0_s5

arrangement

mixed

rarely

1 reference

d0_s5

leaf

atypical quantity

5

7

1 reference

d0_s6

leaf

quantity

2

5

1 reference

d0_s6

linear

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d0_s7

oblanceolate

1 reference

d0_s7

oblong

1 reference

d0_s7

obovate

1 reference

d0_s7

oblong

1 reference

d0_s7

obovate

1 reference

d0_s7

2.2

3

1 reference

d0_s7

0.5

2.2

1 reference

d0_s7

atypical width

8

12

1 reference

d0_s7

2

8

1 reference

d0_s7

inflorescence phyllaries base

auriculate

not

1 reference

d0_s7

inflorescence palea margin

entire

1 reference

d0_s7

inflorescence flower gynoecium pistil style apex

obtuse

1 reference

d0_s7

simple

1 reference

d0_s9

ascending

1 reference

d0_s9

arrangement

divaricate

1 reference

d0_s9

2

5

1 reference

d0_s9

20

30

1 reference

d0_s9

5

20

1 reference

d0_s9

oblong

1 reference

d0_s10

2.5

3.5

1 reference

d0_s10

1.2

1.5

1 reference

d0_s10

position

lateral

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d0_s10

saccate

basally

1 reference

d0_s10

coloration

white

1 reference

d0_s11

oblanceolate

spatulate

1 reference

d0_s11

5

6

1 reference

d0_s11

6

8

1 reference

d0_s11

2

4

1 reference

d0_s11

inflorescence flower gynoecium pistil style apex

rounded

1 reference

d0_s11

inflorescence flower androecium stamens filament

2.5

4

1 reference

d0_s12

inflorescence flower anther

oblong

1 reference

d0_s13

inflorescence flower anther

0.6

1

1 reference

d0_s13

ascending

suberect

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d0_s14

torulose

slightly

1 reference

d0_s14

course

curved

sometimes slightly

1 reference

d0_s14

0.7

1

1 reference

d0_s14

2.5

2.8

1 reference

d0_s14

1

2.5

1 reference

d0_s14

atypical width

1.2

1.5

1 reference

d0_s14

0.8

1.2

1 reference

d0_s14

inflorescence flower petal venation

fusion

distinct

1 reference

d0_s15

inflorescence flower gynoecium pistil ovule

quantity

10

24

1 reference

d0_s16

inflorescence flower gynoecium pistil style

1.2

2

1 reference

d0_s17

inflorescence flower gynoecium pistil style

0.5

1.2

1 reference

d0_s17

winged

not

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d0_s18

ovate

broadly

1 reference

d0_s18

1.2

1.5

1 reference

d0_s18

0.6

1.2

1 reference

d0_s18

0.5

1

1 reference

d0_s18

chromosome

quantity

32

1 reference