Difference between revisions of "Draba sibirica (Pallas) Thellung (Q3532) "

taxon name

Draba sibirica

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taxon authority

(Pallas) Thellung

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taxon rank

species

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taxon status

accepted

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common name

Siberian draba (English)

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Siberian whitlowgrass (English)

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VasCan taxon numeric id

4029

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establishment of distribution

distribution

Greenland, GL

occurrence status

present

native

1 reference

publication

Böcher, T.W., B. Fredskild, K. Holmen & K. Jakobsen. 1978. Grønlands Flora. P. Haase & Søns Forlag, København. 326 pp.

Greenland

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Europe (Russia)

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Asia (Caucasus)

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Asia (Iran)

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Asia (Russian Far East)

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Asia (Siberia)

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Asia (Turkey)

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Asia (central republics)

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parent taxon

Draba Linnaeus

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taxon habit

herb

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GBIF taxon key

3049513

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering May–Jul.

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taxon habitat

wet places

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rocky slopes

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elevation

0-300 m

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taxon description fragment

scapose.

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d0_s3

Stems (subdecumbent when sterile), unbranched, 0.5–2.5 dm, sparsely to densely hispid, trichomes malpighiaceous, (flowering scapes sparsely pilose proximally with simple trichomes, often glabrous on distal 1/2).

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d0_s4

petiolate;

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d0_s6

blade oblong-lanceolate or oblanceolate, 0.4–2.2 cm × 1–5 (–10) mm, margins entire, surfaces often pubescent, sometimes glabrous (except margins), with appressed, malpighiaceous trichomes (these sometimes with 1 or 2 shorter, lateral branches, appearing 3-fid or cross-shaped).

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d0_s7

Cauline leaves 0.

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d0_s8

Racemes 7–20-flowered, ebracteate, considerably elongated in fruit;

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d0_s9

Fruiting pedicels divaricate, straight or curved, (often filiform), 5–18 (–23) mm, glabrous.

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d0_s11

Flowers: sepals (erect), oblong or ovate, 2–2.7 mm (lateral pair subsaccate basally), glabrous or abaxially sparsely pilose, (trichomes simple);

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d0_s12

petals yellow, narrowly obovate, 4–6 × 2–3 mm, (apex emarginate);

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d0_s13

anthers ovate-subcordate, 0.4–0.5 mm.

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d0_s14

Fruits usually oblong to elliptic, rarely sublinear, plane, flattened, 4–8 × 1.5–2.2 mm;

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d0_s15

valves glabrous, (obscurely veined);

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d0_s16

ovules 24–30 per ovary;

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d0_s17

style 0.5–1 mm.

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d0_s18

Seeds (brown), ovoid, 0.9–1.2 × 0.5–0.6 mm. 2n = 16.

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d0_s19

morphology statement

stem caudex

branched

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d0_s3

stem caudex

scapose

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d0_s3

stem

unbranched

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d0_s4

stem

0.5

2.5

1 reference

d0_s4

stem

hispid

sparsely to densely

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d0_s4

leaf

arrangement

rosulate

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d0_s6

leaf

petiolate

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d0_s6

oblong-lanceolate

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d0_s7

oblanceolate

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d0_s7

0.4

2.2

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d0_s7

atypical width

5

10

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d0_s7

1

5

1 reference

d0_s7

inflorescence palea margin

entire

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d0_s7

leaf

presence

absent

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d0_s8

course

flexuous

not

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d0_s11

glabrous

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d0_s11

arrangement

divaricate

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d0_s11

course

straight

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d0_s11

course

curved

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d0_s11

atypical some measurement

18

23

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d0_s11

5

18

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d0_s11

glabrous

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d0_s11

oblong

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d0_s12

ovate

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d0_s12

2

2.7

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d0_s12

glabrous

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d0_s12

pilose

abaxially sparsely

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d0_s12

coloration

yellow

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d0_s13

obovate

narrowly

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d0_s13

4

6

1 reference

d0_s13

2

3

1 reference

d0_s13

inflorescence flower anther

ovate-subcordate

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d0_s14

inflorescence flower anther

0.4

0.5

1 reference

d0_s14

usually oblong

elliptic

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d0_s15

sublinear

rarely

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d0_s15

plane

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d0_s15

flattened

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d0_s15

4

8

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d0_s15

1.5

2.2

1 reference

d0_s15

inflorescence flower gynoecium pistil ovule

quantity

24

30

1 reference

d0_s17

inflorescence flower gynoecium pistil style

0.5

1

1 reference

d0_s18

seed

ovoid

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d0_s19

seed

0.9

1.2

1 reference

d0_s19

seed

0.5

0.6

1 reference

d0_s19

chromosome

quantity

16

1 reference

d0_s19

tissue epidermis armature trichome

malpighiaceous

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d0_s4

tissue epidermis armature trichome

fixation

orientation

appressed

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d0_s7

tissue epidermis armature trichome

malpighiaceous

1 reference

d0_s7

inflorescence raceme

7-20-flowered

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d0_s9

inflorescence raceme

ebracteate

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d0_s9

inflorescence raceme

elongated

considerably

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d0_s9

general structure valve

glabrous

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