Boechera paupercula (Greene) Windham &amp; Al-Shehbaz (Q3800)

taxon name

Boechera paupercula

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taxon authority

(Greene) Windham & Al-Shehbaz

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taxon rank

species

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taxon status

accepted

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common name

tiny suncress (English)

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small-flowered rockcress (English)

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arabette minuscule (French)

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VasCan taxon numeric id

29409

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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/

US-CA

Calif.

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US-ID

Idaho

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US-OR

Oreg.

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US-WA

Wash.

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US-WY

Wyo.

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Boechera Á. Löve & D. Löve

parent taxon

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taxon habit

herb

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GBIF taxon key

3043429

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering Jun–Aug.

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taxon habitat

rock outcrops

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talus slopes

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gravelly soil

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alpine

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subalpine habitats

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elevation

2400-3400 m

measurement range from

2,400 meter

measurement range to

3,400 meter

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taxon description fragment

caudex often woody.

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d0_s4

Stems usually 1 per caudex branch, arising from center of rosette near ground surface, 0.3–1.5 dm, densely pubescent proximally, trichomes simple and short-stalked, 2–4-rayed, (0.07–) 0.1–0.2 mm, glabrous or sparsely pubescent distally.

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d0_s5

Basal leaves: blade linear-oblanceolate, 1–3 (–5) mm wide, margins entire, ciliate proximally, trichomes to 0.4 mm, surfaces densely pubescent, trichomes short-stalked, 2–6-rayed, (0.07–) 0.1–0.2 mm.

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d0_s6

Cauline leaves: 2–6, rarely concealing stem;

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d0_s7

blade auricles 0 (or 0.2–1.5) mm, surfaces of distalmost leaves glabrous.

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d0_s8

Fruiting pedicels erect, straight, 3–9 mm, glabrous or sparsely pubescent.

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d0_s10

Flowers erect at anthesis;

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d0_s11

sepals glabrous or sparsely pubescent;

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d0_s12

petals lavender to purplish, 4–6 (–7) × 1–2 mm, glabrous;

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d0_s13

pollen ellipsoid.

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d0_s14

Fruits erect, appressed to rachis, not secund, straight, edges parallel, 2.5–5.5 cm × 1.3–1.7 (–2) mm;

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d0_s15

valves glabrous;

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d0_s16

ovules 24–40 per ovary;

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d0_s17

style 0.2–1 mm.

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d0_s18

Seeds usually uniseriate, rarely sub-biseriate, 1.5–2 (–2.5) × 1–1.4 mm;

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d0_s19

wing continuous, 0.3–1 mm wide.

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d0_s20

morphology statement

stem caudex

texture

woody

often

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d0_s4

quantity

1

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d0_s5

arising

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d0_s5

0.3

1.5

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d0_s5

pubescent

densely; proximally

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d0_s5

leaf blade

linear-oblanceolate

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d0_s6

leaf blade

3

5

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d0_s6

leaf blade

1

3

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d0_s6

inflorescence palea margin

entire

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d0_s6

inflorescence palea margin

ciliate

proximally

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d0_s6

leaf

quantity

2

6

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d0_s7

inflorescence flower petal auricle

0

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d0_s8

inflorescence flower

erect

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d0_s11

inflorescence flower sepal

glabrous

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d0_s12

inflorescence flower sepal

pubescent

sparsely

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d0_s12

coloration

lavender

purplish

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d0_s13

atypical length

6

7

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d0_s13

length

4

6

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d0_s13

1

2

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d0_s13

glabrous

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d0_s13

inflorescence flower androecium stamens pollen

ellipsoid

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d0_s14

erect

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d0_s15

fixation

appressed

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d0_s15

secund

not

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d0_s15

course

straight

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d0_s15

inflorescence flower gynoecium pistil ovule

quantity

24

40

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d0_s17

inflorescence flower gynoecium pistil style

0.2

1

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d0_s18

arrangement

uniseriate

usually

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d0_s19

arrangement

sub-biseriate

rarely

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d0_s19

atypical length

2

2.5

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d0_s19

length

1.5

2

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d0_s19

1

1.4

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d0_s19

simple

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d0_s5

short-stalked

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d0_s5

atypical some measurement

0.07

0.1

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d0_s5

0.1

0.2

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d0_s5

glabrous

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d0_s5

pubescent

sparsely; distally

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d0_s5

0

0.4

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d0_s6

short-stalked

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d0_s6

atypical some measurement

0.07

0.1

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d0_s6

0.1

0.2

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d0_s6

3-8-flowered

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d0_s10

unbranched

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d0_s10

erect

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d0_s10

course

straight

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d0_s10

3

9

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d0_s10

glabrous

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d0_s10

pubescent

sparsely

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d0_s10

general structure valve

glabrous

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d0_s16

inflorescence flower petal venation midvein wing

continuous

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d0_s20

inflorescence flower petal venation midvein wing

0.3

1

1 reference