Cardamine occidentalis (S. Watson) Howell (Q3583)

taxon name

Cardamine occidentalis

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taxon authority

(S. Watson) Howell

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taxon rank

species

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taxon status

accepted

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common name

cardamine occidentale (French)

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western bittercress (English)

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big western bittercress (English)

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VasCan taxon numeric id

3958

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distribution

CA-BC

establishment of distribution

occurrence status

present

native

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publication

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-BC

B.C.

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US-AK

Alaska

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US-CA

Calif.

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US-OR

Oreg.

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US-WA

Wash.

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parent taxon

Cardamine Linnaeus

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taxon habit

herb

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GBIF taxon key

8518042

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering Apr–Jul.

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taxon habitat

muddy grounds

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lake margins

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shallow streams

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meadows

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elevation

150-1500 m

measurement range from

150 meter

measurement range to

1,500 meter

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special status

E

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taxon description fragment

Rhizomes (tuberiform, fragile), ovoid or globose at base of stem, 3–10 mm diam., (fleshy).

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d0_s2

Stems (simple from base), erect to ascending, (not flexuous), unbranched or branched distally, 1–5 dm, glabrous or pubescent proximally.

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d0_s3

Basal leaves not rosulate, pinnately compound, (3 or) 5 (or 7) -foliolate, 2–10 cm, leaflets petiolulate or subsessile;

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d0_s4

petiole 0.5–6.5 cm;

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d0_s5

lateral leaflets petiolulate or subsessile, blade similar to terminal, ovate, smaller, margins entire;

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d0_s6

terminal leaflet (petiolule 0.03–0.18 cm), blade orbicular to broadly ovate or subcordate, 0.5–2 cm × 7–25 mm, base cordate to rounded, margins entire or repand, (surfaces glabrous).

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d0_s7

Cauline leaves 3–7, (3 or) 5 or 7-foliolate (middle ones 5 or 7-foliolate, smaller distally, becoming 3-foliolate), petiolate;

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d0_s8

petiole 0.5–3 cm, base not auriculate;

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d0_s9

lateral leaflets similar to terminal, smaller;

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d0_s10

terminal leaflet blade obovate to oblanceolate, 0.5–2.6 cm × 3–13 mm, margins shallowly toothed, entire, or repand.

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d0_s11

Fruiting pedicels divaricate-ascending, 7–18 mm.

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d0_s13

Flowers: sepals oblong, 1.7–2 × 1–1.2 mm, lateral pair not saccate basally;

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d0_s14

petals white, oblanceolate, 4–6 × 1.5–2 mm, (not clawed);

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d0_s15

filaments: median pairs 2–2.5 mm, lateral pair 1–1.5 mm;

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d0_s16

anthers ovate, 0.3–0.5 mm.

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d0_s17

(valves glabrous or sparsely pubescent);

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d0_s19

ovules 18–40 per ovary;

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d0_s20

style 0.5–1.5 mm.

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d0_s21

Seeds brown, ovoid, 1–1.6 × 1–1.2 mm. 2n = 64.

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d0_s22

morphology statement

orientation

erect

ascending

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d0_s3

unbranched

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d0_s3

branched

distally

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d0_s3

1

5

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d0_s3

pubescence

glabrous

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d0_s3

pubescence

pubescent

proximally

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d0_s3

arrangement

rosulate

not

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d0_s4

compound

pinnately

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d0_s4

5-foliolate

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d0_s4

2

10

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d0_s4

leaf petiole

0.5

6.5

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d0_s5

structure subtype

terminal

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d0_s6

ovate

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d0_s6

size

smaller

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d0_s6

entire

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d0_s6

orbicular

broadly ovate or subcordate

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d0_s7

0.5

2

1 reference

d0_s7

7

25

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d0_s7

inflorescence phyllaries base

cordate

rounded

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d0_s7

entire

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d0_s7

repand

1 reference

d0_s7

quantity

3

7

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d0_s8

7-foliolate

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d0_s8

petiolate

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d0_s8

leaf petiole

0.5

3

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d0_s9

inflorescence phyllaries base

auriculate

not

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d0_s9

obovate

oblanceolate

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d0_s11

0.5

2.6

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d0_s11

3

13

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d0_s11

toothed

shallowly

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d0_s11

entire

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d0_s11

repand

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d0_s11

entire

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d0_s11

repand

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d0_s11

oblong

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d0_s14

1.7

2

1 reference

d0_s14

1

1.2

1 reference

d0_s14

lateral

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d0_s14

saccate

not; basally

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d0_s14

coloration

white

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d0_s15

oblanceolate

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d0_s15

4

6

1 reference

d0_s15

1.5

2

1 reference

d0_s15

median

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d0_s16

2

2.5

1 reference

d0_s16

lateral

1 reference

d0_s16

1

1.5

1 reference

d0_s16

inflorescence flower anther

ovate

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d0_s17

inflorescence flower anther

0.3

0.5

1 reference

d0_s17

fruit

arrangement

course

linear

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d0_s19

fruit

1.5

3.3

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d0_s19

fruit

1.7

2.2

1 reference

d0_s19

inflorescence flower gynoecium pistil ovule

quantity

18

40

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d0_s20

inflorescence flower gynoecium pistil style

0.5

1.5

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d0_s21

coloration

brown

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d0_s22

ovoid

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d0_s22

1

1.6

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d0_s22

1

1.2

1 reference

d0_s22

chromosome

quantity

64

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d0_s22

stem rhizome

ovoid

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d0_s2

stem rhizome

globose

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d0_s2

stem rhizome

diameter

3

10

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d0_s2

petiolulate

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d0_s4

subsessile

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d0_s4

petiolulate

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d0_s6

subsessile

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d0_s6

structure subtype

terminal

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d0_s10

size

smaller

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d0_s10

inflorescence raceme

ebracteate

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d0_s13

inflorescence raceme

orientation

divaricate-ascending

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d0_s13

inflorescence raceme

7

18

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