Difference between revisions of "Tephroseris yukonensis (A. E. Porsild) Holub (Q2959) "

taxon name

Tephroseris yukonensis

1 reference

taxon authority

(A.E. Porsild) Holub

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

séneçon du Yukon (French)

1 reference

Yukon groundsel (English)

1 reference

VasCan taxon numeric id

3622

1 reference

distribution

CA-BC

establishment of distribution

occurrence status

present

native

1 reference

publication

Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.

CA-YT

establishment of distribution

occurrence status

present

native

1 reference

publication

Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.

CA-NT

establishment of distribution

occurrence status

present

native

1 reference

publication

Porsild, A.E. & W.J. Cody. 1980. Vascular Plants of the Continental Northwest Territories, Canada. National Museum of Natural Sciences, Ottawa, Ont. 667 pp.

CA-YT

original value

Yukon

1 reference

US-AK

original value

Alaska.

1 reference

Tephroseris (Reichenbach) Reichenbach

parent taxon

1 reference

taxon habit

herb

1 reference

GBIF taxon key

3131001

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

phenology

Flowering Jun–Aug.

1 reference

taxon habitat

moist tundra meadows

1 reference

elevation

0–2000 m

1 reference

special status

E

1 reference

taxon description fragment

Stems single or loosely clustered.

1 reference

d0_s1

Leaves basal and cauline (basal often withering before flowering);

1 reference

d0_s2

petioles unwinged or weakly so, 2–5 cm;

1 reference

d0_s3

blades ovate to broadly lanceolate, 2–5 × 1–3 cm, margins subentire to dentate or wavy (proximal cauline petioles usually winged, 0.5–1.5 cm, blades narrowly ovate to lanceolate, 2–4+ × 0.5–2 cm, margins subentire to wavy; mid and distal cauline smaller, clasping, bractlike).

1 reference

d0_s4

Heads 1–4 (–6+).

1 reference

d0_s5

Involucres ± abruptly contracted to peduncles.

1 reference

d0_s6

Ray-florets (0) or 13–21;

1 reference

d0_s8

corolla laminae to 10 mm.

1 reference

d0_s9

Disc-florets 40–60;

1 reference

d0_s10

corollas ochroleucous or white.

1 reference

d0_s11

Cypselae glabrous;

1 reference

d0_s12

2n = ca. 46 (48?).

1 reference

d0_s14

morphology statement

stem

single

1 reference

d0_s1

stem

arrangement

growth form

morphology statement value modifier

clustered

loosely

1 reference

d0_s1

leaf

position

basal

1 reference

d0_s2

leaf

position

cauline

1 reference

d0_s2

leaf petiole

architecture

unwinged

1 reference

d0_s3

leaf petiole

architecture

weakly

1 reference

d0_s3

leaf petiole

some measurement

2

5

1 reference

d0_s3

leaf blade

shape

ovate

broadly lanceolate

1 reference

d0_s4

leaf blade

length

2

5

1 reference

d0_s4

leaf blade

width

1

3

1 reference

d0_s4

inflorescence palea margin

shape

subentire

dentate or wavy

1 reference

d0_s4

inflorescence involucre

condition

size

morphology statement value modifier

contracted

more or less abruptly

1 reference

d0_s6

inflorescence flower ray-floret

atypical quantity

0

1 reference

d0_s8

inflorescence flower ray-floret

13

21

1 reference

d0_s8

inflorescence flower ray lamina

some measurement

0

10

1 reference

d0_s9

inflorescence flower corolla

coloration

ochroleucous

1 reference

d0_s11

inflorescence flower corolla

coloration

white

1 reference

d0_s11

fruit pappus

coloration

white

1 reference

d0_s14

chromosome

46

1 reference

d0_s14

chromosome

[48

1 reference

d0_s14

general structure head

atypical quantity

4

6

1 reference

d0_s5

general structure head

1

4

1 reference

d0_s5

inflorescence flower disc-floret

40

60

1 reference

d0_s10

fruit cypsela

pubescence

glabrous

1 reference