Symphyotrichum yukonense (Cronquist) G. L. Nesom (Q2505)

Flora Commons

accepted id

Symphyotrichum yukonense (Cronquist) G.L. Nesom

taxon name

Symphyotrichum yukonense

taxon authority

(Cronquist) G.L. Nesom

taxon rank

species

FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.

taxon status

accepted

1 reference

taxon name

Symphyotrichum yukonense

1 reference

taxon authority

(Cronquist) G.L. Nesom

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

aster du Yukon (French)

1 reference

Yukon aster (English)

1 reference

Yukon aster (English)

1 reference

VasCan taxon numeric id

3596

1 reference

distribution

CA-BC

occurrence status

excluded

1 reference

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

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

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-NT

original value

N.W.T.

1 reference

CA-YT

original value

Yukon

1 reference

US-AK

original value

Alaska.

1 reference

Symphyotrichum subg. Virgulus (Rafinesque) G. L. Nesom

parent taxon

1 reference

taxon habit

herb

1 reference

GBIF taxon key

3151657

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

phenology

Flowering Jul–Aug.

1 reference

taxon habitat

mud flats

1 reference

gravelly

1 reference

stony

1 reference

silty lakeshores

1 reference

saline areas

1 reference

elevation

300–1500 m

measurement range from

300 meter

measurement range to

1,500 meter

1 reference

special status

E

1 reference

C

1 reference

taxon description fragment

with short, erect, woody caudices from long, thin rhizomes.

1 reference

d0_s1

Stems 1–8+, erect (purplish to brown, slender), villous, more densely so distally, distally moderately stipitate-glandular.

1 reference

d0_s2

Leaves (yellowish to dark green. midrib purplish, often prominent) thin, reduced distally, margins entire;

1 reference

d0_s3

basal withering by flowering, winged-petiolate to subpetiolate (petioles ± sheathing), blades narrowly oblanceolate, 8–15 × 1–3 mm, bases attenuate, margins scabrous, apices obtuse to acute, faces glabrous or glabrate;

1 reference

d0_s4

proximal cauline often withering by flowering, sessile or subsessile, blades linear-oblanceolate, 20–70 × 1–4 mm, bases ± clasping, margins ciliate, apices acute, abaxial faces glabrous or midnerve ± sparsely villous, adaxial glabrous or sparsely villous, midnerves ± villous;

1 reference

d0_s5

distal sessile, blades linear-lanceolate, 10–30 × 1–2.5 mm, bases ± subclasping, ± rounded to subauriculate, margins sometimes stipitate-glandular, apices acute, mucronate or white-spinulose, faces glabrous or sparsely villous, short-stipitate-glandular.

1 reference

d0_s6

Heads usually borne singly, sometimes in open, corymbo-paniculiform arrays, branches ascending.

1 reference

d0_s7

Peduncles ± densely short-villous, ± densely stipitate-glandular, bracts 1–3, foliaceous, reduced.

1 reference

d0_s8

Involucres campanulate, 7–10 mm.

1 reference

d0_s9

Phyllaries in 3–4 (–5) series, linear-lanceolate, subequal, bases scarious, margins hyaline or purplish, scarious, erose, ciliate or short-stipitate-glandular, green zones herbaceous at least distally, often purplish to purple, apices long-acuminate, spreading to reflexed, faces ± densely villous (outer more so), ± densely stipitate-glandular.

1 reference

d0_s10

Ray-florets (8–) 15–30;

1 reference

d0_s11

corollas purple to blue, laminae 5–11 × 0.5–2 mm.

1 reference

d0_s12

Disc-florets 16–38;

1 reference

d0_s13

corollas yellow becoming brown, 4–6.5 mm, lobes triangular, 0.4–0.8 mm.

1 reference