Draba arabisans Michaux (Q3499)

taxon name

Draba arabisans

1 reference

taxon authority

Michaux

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

drave arabette (French)

1 reference

rock draba (English)

1 reference

rock whitlowgrass (English)

1 reference

rockcress whitlowgrass (English)

1 reference

VasCan taxon numeric id

3992

1 reference

distribution

CA-MB

present

native

1 reference

CA-NB

present

native

1 reference

Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.

Newfoundland, CA

present

native

1 reference

Meades, S., S.G. Hay & L. Brouillet. 2000. Annotated Checklist of the Vascular Plants of Newfoundland and Labrador. Published in association with A Digital Flora of Newfoundland and Labrador Vascular Plants. http://www.digitalnaturalhistory.com/meades.htm (consulted 2009-09-02) http://www.digitalnaturalhistory.com/meades.htm

CA-NS

present

native

1 reference

Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.

CA-ON

present

native

1 reference

Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.

CA-QC

present

native

1 reference

Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.

CA-MB

Man.

1 reference

CA-NB

N.B.

1 reference

CA-NL

Nfld. and Labr. (Nfld.)

1 reference

CA-NS

N.S.

1 reference

CA-ON

Ont.

1 reference

CA-QC

Que.

1 reference

US-ME

Maine

1 reference

US-MI

Mich.

1 reference

US-MN

Minn.

1 reference

US-NY

N.Y.

1 reference

US-VT

Vt.

1 reference

US-WI

Wis.

1 reference

parent taxon

Draba Linnaeus

1 reference

taxon habit

herb

1 reference

GBIF taxon key

3050109

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

phenology

Flowering Jun–Aug.

1 reference

taxon habitat

rock outcrops

1 reference

talus

1 reference

open woods

1 reference

rocky shores

1 reference

elevation

0-300 m

1 reference

special status

E

1 reference

taxon description fragment

not scapose.

1 reference

d0_s3

Stems branched or unbranched, (0.5–) 0.7–3 (–4.5) dm, pubescent proximally, glabrous or pubescent distally, trichomes sessile (non-crisped), 4-rayed or 5-rayed, stellate, or subpectinate, 0.07–0.4 mm.

1 reference

d0_s4

petiolate;

1 reference

d0_s6

petiole base and margin sparsely ciliate, (trichomes simple and 2-rayed, 0.2–0.8 mm);

1 reference

d0_s7

blade oblanceolate to spatulate or linear-oblanceolate, 1–3.8 (–5) cm × 2–5 (–8) mm, margins dentate or denticulate, surfaces pubescent with sessile, non-crisped, 4-rayed or 5-rayed, stellate trichomes, 0.07–0.5mm, (some rays branched, appearing 2–12-rayed, midvein obscure abaxially).

1 reference

d0_s8

sessile;

1 reference

d0_s10

blade ovate to oblong, margins dentate to subentire, surfaces pubescent as basal.

1 reference

d0_s11

Racemes 5–18 (–25) -flowered, ebracteate, elongated in fruit;

1 reference

d0_s12

Fruiting pedicels divaricate-ascending to suberect, straight or slightly curved, (3–) 4–10 (–13) mm, glabrous or pubescent as stem.

1 reference

d0_s14

Flowers: sepals oblong, 1.7–2.5 mm, pubescent, trichomes short-stalked, 3-rayed or 4-rayed;

1 reference

d0_s15

petals white, broadly obovate, 3.5–5 × 1.5–2.5 mm;

1 reference

d0_s16

anthers ovate, 0.4–0.5 mm.

1 reference

d0_s17

Fruits ovate to lanceolate or linear-lanceolate, usually slightly twisted, rarely plane, flattened, 5–11 (–14) × 2–3.5 mm;

1 reference

d0_s18

valves usually glabrous, rarely pubescent, trichomes 3-rayed or 4-rayed, 0.07–0.2 mm;

1 reference

d0_s19

ovules 20–28 (–32) per ovary;

1 reference

d0_s20

style (0.2–) 0.4–1 mm.

1 reference

d0_s21

Seeds oblong, 0.8–1.1 × 0.6–0.8 mm. 2n = 96.

1 reference

d0_s22

morphology statement

stem caudex

simple

1 reference

d0_s3

stem caudex

branched

1 reference

d0_s3

stem caudex

scapose

not

1 reference

d0_s3

branched

1 reference

d0_s4

unbranched

1 reference

d0_s4

0.5

0.7

1 reference

d0_s4

3

4.5

1 reference

d0_s4

0.7

3

1 reference

d0_s4

pubescent

proximally

1 reference

d0_s4

glabrous

1 reference

d0_s4

pubescent

distally

1 reference

d0_s4

arrangement

rosulate

1 reference

d0_s6

petiolate

1 reference

d0_s6

leaf petiole

ciliate

sparsely

1 reference

d0_s7

inflorescence phyllaries base

ciliate

sparsely

1 reference

d0_s7

ciliate

sparsely

1 reference

d0_s7

oblanceolate

spatulate or linear-oblanceolate

1 reference

d0_s8

atypical length

3.8

5

1 reference

d0_s8

1

3.8

1 reference

d0_s8

atypical width

5

8

1 reference

d0_s8

2

5

1 reference

d0_s8

dentate

1 reference

d0_s8

denticulate

1 reference

d0_s8

atypical quantity

10

13

1 reference

d0_s10

quantity

3

10

1 reference

d0_s10

sessile

1 reference

d0_s10

ovate

oblong

1 reference

d0_s11

dentate

subentire

1 reference

d0_s11

leaf rachis

course

flexuous

not

1 reference

d0_s14

leaf rachis

glabrous

1 reference

d0_s14

leaf rachis

pubescent

1 reference

d0_s14

orientation

divaricate-ascending

suberect

1 reference

d0_s14

course

straight

1 reference

d0_s14

course

curved

slightly

1 reference

d0_s14

3

4

1 reference

d0_s14

10

13

1 reference

d0_s14

4

10

1 reference

d0_s14

glabrous

1 reference

d0_s14

pubescent

1 reference

d0_s14

inflorescence flower sepal

oblong

1 reference

d0_s15

inflorescence flower sepal

1.7

2.5

1 reference

d0_s15

inflorescence flower sepal

pubescent

1 reference

d0_s15

coloration

white

1 reference

d0_s16

obovate

broadly

1 reference

d0_s16

3.5

5

1 reference

d0_s16

1.5

2.5

1 reference

d0_s16

inflorescence flower anther

ovate

1 reference

d0_s17

inflorescence flower anther

0.4

0.5

1 reference

d0_s17

ovate

lanceolate or linear-lanceolate

1 reference

d0_s18

twisted

usually slightly

1 reference

d0_s18

plane

rarely

1 reference

d0_s18

flattened

1 reference

d0_s18

atypical length

11

14

1 reference

d0_s18

5

11

1 reference

d0_s18

2

3.5

1 reference

d0_s18

inflorescence flower gynoecium pistil ovule

atypical quantity

28

32

1 reference

d0_s20

inflorescence flower gynoecium pistil ovule

quantity

20

28

1 reference

d0_s20

inflorescence flower gynoecium pistil style

0.2

0.4

1 reference

d0_s21

inflorescence flower gynoecium pistil style

0.4

1

1 reference

d0_s21

seed

oblong

1 reference

d0_s22

seed

0.8

1.1

1 reference

d0_s22

seed

0.6

0.8

1 reference

d0_s22

chromosome

quantity

96

1 reference

d0_s22

sessile

1 reference

d0_s4

stellate

1 reference

d0_s4

subpectinate

1 reference

d0_s4

stellate

1 reference

d0_s4

subpectinate

1 reference

d0_s4

0.07

0.4

1 reference

d0_s4

sessile

1 reference

d0_s8

non-crisped

1 reference

d0_s8

arrangement

stellate

1 reference

d0_s8

inflorescence raceme

5-18(-25)-flowered

1 reference

d0_s12

inflorescence raceme

ebracteate

1 reference

d0_s12

inflorescence raceme

elongated

1 reference

d0_s12

short-stalked

1 reference

d0_s15

general structure valve

glabrous

usually

1 reference

d0_s19

general structure valve

pubescent

rarely

1 reference

d0_s19

0.07

0.2

1 reference