Symphyotrichum sericeum (Ventenat) G. L. Nesom (Q2503)

Flora Commons

accepted id

Symphyotrichum sericeum (Ventenat) G.L. Nesom

taxon name

Symphyotrichum sericeum

taxon authority

(Ventenat) G.L. Nesom

taxon rank

species

publication

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 sericeum

1 reference

taxon authority

(Ventenat) G.L. Nesom

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

aster soyeux (French)

1 reference

western silvery aster (English)

1 reference

western silver aster (English)

1 reference

western silver-leaved aster (English)

1 reference

silky aster (English)

1 reference

Western silvery aster (English)

1 reference

VasCan taxon numeric id

3583

1 reference

distribution

CA-MB

establishment of distribution

occurrence status

present

native

1 reference

publication

Manitoba Checklist, 2002

CA-ON

establishment of distribution

occurrence status

present

native

1 reference

publication

Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.

CA-MB

Man.

1 reference

CA-ON

Ont.

1 reference

US-AR

Ark.

1 reference

US-GA

Ga.

1 reference

US-IL

Ill.

1 reference

US-IN

Ind.

1 reference

US-IA

Iowa

1 reference

US-KS

Kans.

1 reference

US-MI

Mich.

1 reference

US-MN

Minn.

1 reference

US-MO

Mo.

1 reference

US-NE

Nebr.

1 reference

US-ND

N.Dak.

1 reference

US-OH

Ohio

1 reference

US-OK

Okla.

1 reference

US-SD

S.Dak.

1 reference

US-TN

Tenn.

1 reference

US-TX

Tex.

1 reference

US-WI

Wis.

1 reference

West Indies (Bahamas)

1 reference

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

parent taxon

1 reference

taxon habit

herb

1 reference

GBIF taxon key

3151742

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

phenology

Flowering Aug–Oct.

1 reference

taxon habitat

open

1 reference

dry

1 reference

deep

1 reference

sandy

1 reference

broken limestone outcrops

1 reference

open-wooded bluffs

1 reference

open woods

1 reference

calcareous hammocks

1 reference

prairies

1 reference

fields

1 reference

sand barrens

1 reference

dunes

1 reference

dry banks

1 reference

acidic shield

1 reference

elevation

100–500+ m

measurement range from

100 meter

measurement range to

500 meter

1 reference

taxon description fragment

with short, woody, cormoid caudices, or short rhizomes.

1 reference

d0_s1

Stems 1–5+, ascending to erect (thin, grayish brown to dark-brown), glabrous proximally, densely canescent distally.

1 reference

d0_s2

Leaves (silvery) firm, soft;

1 reference

d0_s3

basal withering by flowering, sessile, blades (1–3 nerved) elliptic-lanceolate, 10–40 × 5–15 mm, bases cuneate, weakly sheathing, margins usually entire, rarely remotely serrate, piloso-ciliate, apices acute, faces less copiously hairy than cauline;

1 reference

d0_s4

proximal cauline withering by flowering, sessile, blades oblanceolate or oblong to linear-lanceolate, 15–30 (–50) × 4–10 mm, slightly and progressively reduced distally, bases rounded, subclasping, margins entire, silky-pilose, apices obtuse to acute, mucronulate, faces sparsely to densely silky-pilose;

1 reference

d0_s5

distal sessile, blades lanceolate, 10–30 × 5–8 mm, little reduced distally, bases cuneate, margins entire, apices acute, mucronate, faces ± densely silky.

1 reference

d0_s6

Heads in open, paniculiform arrays, branches sparse, fastigiate, often arching (1–5+ per branch).

1 reference

d0_s7

Peduncles subsessile or 0.5–3 (–5) cm, densely sericeo-strigose, bracts crowded, 4–8 (–10) mm, grading into phyllaries.

1 reference

d0_s8

Involucres campanulate to cylindric, (5–) 7.5–10 mm.

1 reference

d0_s9

Phyllaries in 3–5 (–6) series, outer ovate with expanded distal portion [(4–) 5–6 mm], mid ovatelanceolate [6–8 (–10) mm] with expanded green portions, inner linear, unequal or sometimes subequal, outer often foliaceous, bases (mid) scarious, margins silky, green zones restricted to expanded distal 1/2–2/3 (obscured by hairs), apices (outer) spreading or squarrose to reflexed, acute, mucronulate, faces densely long-silky.

1 reference

d0_s10

Ray-florets (10–) 15–30;

1 reference

d0_s11

corollas usually rose-purple to deep purple, rarely white, laminae 8.5–11 × 1–1.5 mm.

1 reference

d0_s12

Disc-florets (15–) 25–35;

1 reference

d0_s13

corollas pink turning purple, (5–) 5.5–7 mm, tubes shorter than narrowly funnelform throats (both thinly puberulent), lobes deltate, 0.7–0.9 mm.

1 reference

d0_s14

Cypselae purple or brown, obovoid, not compressed, 2–3 mm, 7–10-nerved (prominent), faces glabrous;

1 reference

d0_s15

pappi whitish or tawny, 6–7 mm. 2n = 10, 20.

1 reference

d0_s16

morphology statement

stem caudex

height

short

1 reference

d0_s1

stem caudex

woody

1 reference

d0_s1

stem caudex

cormoid

1 reference

d0_s1

height

short

1 reference

d0_s1

1

5

1 reference

d0_s2

ascending

erect

1 reference

d0_s2

glabrous

proximally

1 reference

d0_s2

canescent

densely; distally

1 reference

d0_s2

firm

1 reference

d0_s3

soft

1 reference

d0_s3

life cycle

withering

1 reference

d0_s4

sessile

1 reference

d0_s4

elliptic-lanceolate

1 reference

d0_s4

10

40

1 reference

d0_s4

5

15

1 reference

d0_s4

cuneate

1 reference

d0_s4

sheathing

weakly

1 reference

d0_s4

entire

usually

1 reference

d0_s4

serrate

rarely remotely

1 reference

d0_s4

piloso-ciliate

1 reference

d0_s4

acute

1 reference

d0_s4

less copiously hairy

1 reference

d0_s4

life cycle

withering

1 reference

d0_s5

subclasping

1 reference

d0_s5

life cycle

flowering

1 reference

d0_s5

sessile

1 reference

d0_s5

oblong

linear-lanceolate

1 reference

d0_s5

atypical length

30

50

1 reference

d0_s5

15

30

1 reference

d0_s5

4

10

1 reference

d0_s5

reduced

progressively

1 reference

d0_s5

rounded

1 reference

d0_s5

entire

1 reference

d0_s5

silky-pilose

1 reference

d0_s5

obtuse

acute

1 reference

d0_s5

mucronulate

1 reference

d0_s5

silky-pilose

sparsely to densely

1 reference

d0_s5

sessile

1 reference

d0_s6

lanceolate

1 reference

d0_s6

10

30

1 reference

d0_s6

5

8

1 reference

d0_s6

reduced

distally

1 reference

d0_s6

cuneate

1 reference

d0_s6

entire

1 reference

d0_s6

acute

1 reference

d0_s6

mucronate

1 reference

d0_s6

silky

more or less densely

1 reference

d0_s6

general structure

open

1 reference

d0_s7

general structure

paniculiform

1 reference

d0_s7

inflorescence branch

count

density

sparse

1 reference

d0_s7

inflorescence branch

arrangement

fastigiate

1 reference

d0_s7

inflorescence branch

arching

often

1 reference

d0_s7

inflorescence peduncle

subsessile

1 reference

d0_s8

inflorescence peduncle

0.5-3(-5) cm

1 reference

d0_s8

inflorescence peduncle

sericeo-strigose

densely

1 reference

d0_s8

inflorescence peduncle bract

arrangement

crowded

1 reference

d0_s8

inflorescence peduncle bract

atypical some measurement

8

10

1 reference

d0_s8

inflorescence peduncle bract

4

8

1 reference

d0_s8

inflorescence involucre

campanulate

cylindric

1 reference

d0_s9

inflorescence involucre

atypical some measurement

5

7.5

1 reference

d0_s9

inflorescence involucre

7.5

10

1 reference

d0_s9

scarious

1 reference

d0_s10

silky

1 reference

d0_s10

expanded

1 reference

d0_s10

position

distal

1 reference

d0_s10

1/2

2/3

1 reference

d0_s10

long-silky

densely

1 reference

d0_s10

spreading

1 reference

d0_s10

squarrose

1 reference

d0_s10

reflexed

1 reference

d0_s10

acute

1 reference

d0_s10

mucronulate

1 reference

d0_s10

expanded

1 reference

d0_s10

position

distal

1 reference

d0_s10

1/2

2/3

1 reference

d0_s10

long-silky

densely

1 reference

d0_s10

inflorescence flower ray-floret

atypical quantity

10

15

1 reference

d0_s11

inflorescence flower ray-floret

15

30

1 reference

d0_s11

usually rose-purple

deep purple

1 reference

d0_s12

white

rarely

1 reference

d0_s12

inflorescence flower ray lamina

8.5

11

1 reference

d0_s12

inflorescence flower ray lamina

1

1.5

1 reference

d0_s12

inflorescence flower

atypical quantity

15

25

1 reference

d0_s13

inflorescence flower

25

35

1 reference

d0_s13

pink turning purple

1 reference

d0_s14

atypical some measurement

5

5.5

1 reference

d0_s14

5.5

7

1 reference

d0_s14

inflorescence flower corolla tube

height

shorter

1 reference

d0_s14

inflorescence flower corolla lobe

deltate

1 reference

d0_s14

inflorescence flower corolla lobe

0.7

0.9

1 reference

d0_s14

purple

1 reference

d0_s15

brown

1 reference

d0_s15

obovoid

1 reference

d0_s15

compressed

not

1 reference

d0_s15

2

3

1 reference

d0_s15

7-10-nerved

1 reference

d0_s15

glabrous

1 reference

d0_s15

fruit pappus

whitish

1 reference

d0_s16

fruit pappus

tawny

1 reference

d0_s16

fruit pappus

6

7

1 reference

d0_s16

chromosome

10

1 reference

d0_s16

chromosome

20

1 reference