Cardamine oligosperma Nuttall in J. Torrey and A. Gray (Q3585)

taxon name

Cardamine oligosperma

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taxon authority

Nuttall

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taxon rank

species

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taxon status

accepted

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common name

cardamine oligosperme (French)

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little western bittercress (English)

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few-seed bittercress (English)

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Idaho bittercress (English)

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VasCan taxon numeric id

3960

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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-CA

Calif.

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US-CO

Colo.

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US-ID

Idaho

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US-MT

Mont.

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US-NV

Nev.

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US-OR

Oreg.

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US-UT

Utah

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US-WA

Wash.

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US-WY

Wyo.

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Mexico (Baja California)

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parent taxon

Cardamine Linnaeus

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taxon habit

herb

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GBIF taxon key

3046228

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering Mar–Jul.

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taxon habitat

stream banks

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shady banks

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creek bottoms

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lakeshores

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meadows

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moist areas

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wooded slopes

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elevation

50-3300 m

measurement range from

50 meter

measurement range to

3,300 meter

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special status

W

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taxon description fragment

Rhizomes absent.

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d0_s2

Stems (simple or few from base), erect to ascending, (not flexuous), unbranched or branched distally, (0.5–) 0.8–3.2 (–4.1) dm, usually pubescent throughout or proximally, rarely glabrous.

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d0_s3

Basal leaves (persistent to anthesis), rosulate, pinnately compound, 5–9 (–13) -foliolate, 2–8.5 (–11) cm, leaflets petiolulate or subsessile;

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d0_s4

petiole 1–6 cm;

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d0_s5

lateral leaflets petiolulate or subsessile, blade obovate to oblanceolate, smaller than terminal, margins entire or crenate;

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d0_s6

terminal leaflet (petiolule 0.1–0.7 cm), blade usually orbicular to ovate, rarely oblong, 0.4–1.5 (–2.3) cm × 3–10 (–13) mm, base cordate to rounded, margins entire, or crenate-dentate to obscurely 3 or 5-lobed, (surfaces often hirsute, sometimes glabrous).

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d0_s7

Cauline leaves 3–8, pinnately compound, similar to basal, smaller and fewer distally, petiolate, leaflets petiolulate or subsessile;

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d0_s8

petiole 0.5–2 cm, base not auriculate.

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d0_s9

Fruiting pedicels divaricate-ascending, (2–) 3–9 (–12) mm.

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d0_s11

Flowers: sepals oblong, 1.3–1.8 (–2) × 0.5–1 mm, lateral pair not saccate basally;

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d0_s12

petals white, narrowly spatulate to oblanceolate, 2.5–3.5 × 0.9–1.5 mm (not clawed);

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d0_s13

filaments: median pairs 1.7–2.5 mm, lateral pair 1.2–2 mm;

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d0_s14

anthers ovate, 0.3–0.5 mm.

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d0_s15

(valves glabrous or sparsely pubescent);

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d0_s17

ovules 16–36 (–42) per ovary;

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d0_s18

style 0.4–1 (–1.5) mm.

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d0_s19

Seeds brown, oblong, 1–1.6 × 0.8–1.2 mm. 2n = 16.

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d0_s20

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

0.5

0.8

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d0_s3

3.2

4.1

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d0_s3

0.8

3.2

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d0_s3

pubescence

pubescent

usually; throughout; throughout; proximally

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d0_s3

pubescence

glabrous

rarely

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d0_s3

arrangement

rosulate

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d0_s4

compound

pinnately

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d0_s4

5-9(-13)-foliolate

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d0_s4

8.5

11

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d0_s4

2

8.5

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d0_s4

leaf petiole

1

6

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d0_s5

obovate

oblanceolate

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d0_s6

size

smaller

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d0_s6

entire

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d0_s6

crenate

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d0_s6

usually orbicular

ovate

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d0_s7

oblong

rarely

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d0_s7

atypical length

1.5

2.3

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d0_s7

0.4

1.5

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d0_s7

atypical width

10

13

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d0_s7

3

10

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d0_s7

inflorescence phyllaries base

cordate

rounded

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d0_s7

entire

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d0_s7

crenate-dentate

obscurely 3-or-5-lobed

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d0_s7

3

8

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d0_s8

compound

pinnately

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d0_s8

size

smaller

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d0_s8

fewer

distally

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d0_s8

petiolate

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d0_s8

leaf petiole

0.5

2

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d0_s9

inflorescence phyllaries base

auriculate

not

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d0_s9

oblong

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d0_s12

atypical length

1.8

2

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d0_s12

1.3

1.8

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d0_s12

0.5

1

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d0_s12

position

lateral

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d0_s12

saccate

not; basally

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d0_s12

coloration

white

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d0_s13

narrowly spatulate

oblanceolate

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d0_s13

2.5

3.5

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d0_s13

0.9

1.5

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d0_s13

position

median

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d0_s14

1.7

2.5

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d0_s14

position

lateral

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d0_s14

1.2

2

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d0_s14

inflorescence flower anther

ovate

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d0_s15

inflorescence flower anther

0.3

0.5

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d0_s15

arrangement

course

linear

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d0_s17

atypical length

1.3

1.6

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d0_s17

1.6

2.8

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d0_s17

1

1.7

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d0_s17

inflorescence flower gynoecium pistil ovule

atypical quantity

36

42

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d0_s18

inflorescence flower gynoecium pistil ovule

16

36

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d0_s18

inflorescence flower gynoecium pistil style

1

1.5

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d0_s19

inflorescence flower gynoecium pistil style

0.4

1

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d0_s19

coloration

brown

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d0_s20

oblong

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d0_s20

1

1.6

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d0_s20

0.8

1.2

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d0_s20

chromosome

16

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d0_s20

stem rhizome

presence

absent

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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

petiolulate

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d0_s8

subsessile

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d0_s8

ebracteate

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d0_s11

orientation

divaricate-ascending

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d0_s11

2

3

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d0_s11

9

12

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d0_s11

3

9

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