Difference between revisions of "Symphyotrichum prenanthoides (Muhlenberg ex Willdenow) G. L. Nesom (Q2423) "

Flora Commons

accepted id

Symphyotrichum prenanthoides (Muhlenberg ex Willdenow) G.L. Nesom

taxon name

Symphyotrichum prenanthoides

taxon authority

(Muhlenberg ex Willdenow) 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 prenanthoides

1 reference

taxon authority

(Muhlenberg ex Willdenow) G.L. Nesom

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

aster fausse-prenanthe (French)

1 reference

crooked-stem aster (English)

1 reference

Crookedstem aster (English)

1 reference

VasCan taxon numeric id

3578

1 reference

distribution

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-ON

Ont.

1 reference

US-CT

Conn.

1 reference

US-DE

Del.

1 reference

US-DC

D.C.

1 reference

US-IL

Ill.

1 reference

US-IN

Ind.

1 reference

US-IA

Iowa

1 reference

US-KY

Ky.

1 reference

US-MD

Md.

1 reference

US-MA

Mass.

1 reference

US-MI

Mich.

1 reference

US-MN

Minn.

1 reference

US-NJ

N.J.

1 reference

US-NY

N.Y.

1 reference

US-NC

N.C.

1 reference

US-OH

Ohio

1 reference

US-PA

Pa.

1 reference

US-VA

Va.

1 reference

US-WV

W.Va.

1 reference

US-WI

Wis.

1 reference

Symphyotrichum sect. Symphyotrichum

parent taxon

1 reference

taxon habit

herb

1 reference

GBIF taxon key

3151594

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

phenology

Flowering Aug–Oct.

1 reference

taxon habitat

moist

1 reference

swampy grounds

1 reference

woods

1 reference

thickets

1 reference

meadows

1 reference

seeps

1 reference

stream banks

1 reference

roadsides

1 reference

elevation

100–1500 m

measurement range from

100 meter

measurement range to

1,500 meter

1 reference

special status

F

1 reference

E

1 reference

taxon description fragment

Stems 1 (–3+), ascending to erect (usually flexuous, sometimes ± straight, sometimes stout, older often dark purple), glabrous proximally, moderately hirsute distally.

1 reference

d0_s2

Leaves thin, margins scabrous, apices mucronate, abaxial faces glabrous, midveins hispid to glabrate, adaxial scabrous;

1 reference

d0_s3

basal withering by flowering, petiolate (petioles slender or slightly winged, bases reddish, dilated, sheathing, ciliate), blades obovate to oblanceolate, 15–70 × 10–20 mm, bases attenuate, margins crenate-serrate, apices acute to obtuse;

1 reference

d0_s4

proximalmost cauline withering by flowering, proximal mostly persistent, petiolate to subpetiolate (petioles ± widely winged, bases dilated, strongly auriculate-clasping), blades ovate to lanceovate or elliptic-lanceolate to oblanceolate, 80–160 (–200) × 15–55 mm, progressively reduced distally, bases attenuate, margins sharply serrate (teeth mucronulate), apices acuminate to subcaudate;

1 reference

d0_s5

distal subpetiolate or sessile (petioles broadly winged, auriculate-clasping), blades oblanceolate to lanceolate, sometimes panduriform, 7–90 × 2–25 mm, progressively reduced distally, more sharply so on branches, bases attenuate (petiolate) or ± cuneate to auriculate-clasping and slightly constricted above auricles (panduriform), margins serrate or entire.

1 reference

d0_s6

Heads in broad, ± flat, corymbo-paniculiform arrays, branches often purplish, divaricate to ascending, slender.

1 reference

d0_s7

Peduncles (8–) 10–40 mm, sparsely to densely hispid, bracts lanceolate to linear-lanceolate, 3–12 mm, somewhat grading into phyllaries.

1 reference

d0_s8

Involucres campanulate, 5–6 mm.

1 reference

d0_s9

Phyllaries in 4–6 series, oblong-lanceolate or oblanceolate, slightly constricted near middle (outer) to linear-lanceolate or linear (inner), ± unequal (flexible), bases indurate 1/5–1/2, margins ± narrowly hyaline, scarious, erose, sometimes ciliolate distally, green zones lanceolate to linear-lanceolate (inner), often distally foliaceous, sometimes outer ± entirely so, apices spreading to ± squarrose, acute to acuminate, mucronulate, abaxial faces sparsely hirsutulous to glabrate or glabrous, adaxial glabrous or sparsely hirsutulous.

1 reference

d0_s10

Ray-florets 17–25 (–30);

1 reference

d0_s11

corollas usually lavender to blue, rarely white, laminae 7.5–12 (–15) × 1–2 mm.

1 reference

d0_s12

Disc-florets 39–50 (–65);

1 reference

d0_s13

corollas cream colored or light yellow becoming purple or brown, 3.5–5 mm, tubes ± equaling campanulate to funnelform throats (thinly puberulent), lobes triangular, 0.5–1 mm.

1 reference

d0_s14

Cypselae dull purple or stramineous with purple streaks or purplish-tinged, cylindro-oblanceoloid to obovoid, ± compressed, 2–3 (–3.5) mm, 4–6-nerved, faces sparsely to moderately strigillose;

1 reference

d0_s15

pappi sordid, 3.5–4.5 mm. 2n = 32.

1 reference

d0_s16

morphology statement

atypical quantity

1

3

1 reference

d0_s2

1

1 reference

d0_s2

orientation

ascending

erect

1 reference

d0_s2

glabrous

proximally

1 reference

d0_s2

hirsute

moderately; distally

1 reference

d0_s2

thin

1 reference

d0_s3

relief

scabrous

1 reference

d0_s3

mucronate

1 reference

d0_s3

glabrous

1 reference

d0_s3

relief

scabrous

1 reference

d0_s3

withering

1 reference

d0_s4

flowering

1 reference

d0_s4

petiolate

1 reference

d0_s4

obovate

oblanceolate

1 reference

d0_s4

15

70

1 reference

d0_s4

10

20

1 reference

d0_s4

attenuate

1 reference

d0_s4

crenate-serrate

1 reference

d0_s4

acute

obtuse

1 reference

d0_s4

flowering

1 reference

d0_s4

petiolate

1 reference

d0_s4

obovate

oblanceolate

1 reference

d0_s4

15

70

1 reference

d0_s4

10

20

1 reference

d0_s4

attenuate

1 reference

d0_s4

crenate-serrate

1 reference

d0_s4

acute

obtuse

1 reference

d0_s4

flowering

1 reference

d0_s4

petiolate

1 reference

d0_s4

obovate

oblanceolate

1 reference

d0_s4

15

70

1 reference

d0_s4

10

20

1 reference

d0_s4

attenuate

1 reference

d0_s4

crenate-serrate

1 reference

d0_s4

acute

obtuse

1 reference

d0_s4

flowering

1 reference

d0_s4

petiolate

1 reference

d0_s4

obovate

oblanceolate

1 reference

d0_s4

15

70

1 reference

d0_s4

10

20

1 reference

d0_s4

attenuate

1 reference

d0_s4

crenate-serrate

1 reference

d0_s4

acute

obtuse

1 reference

d0_s4

withering

1 reference

d0_s5

petiolate

subpetiolate

1 reference

d0_s5

flowering

1 reference

d0_s5

duration

persistent

mostly

1 reference

d0_s5

ovate

lanceovate or elliptic-lanceolate

1 reference

d0_s5

atypical length

160

200

1 reference

d0_s5

80

160

1 reference

d0_s5

15

55

1 reference

d0_s5

reduced

progressively; distally

1 reference

d0_s5

attenuate

1 reference

d0_s5

serrate

sharply

1 reference

d0_s5

acuminate

subcaudate

1 reference

d0_s5

subpetiolate

1 reference

d0_s6

sessile

1 reference

d0_s6

oblanceolate

lanceolate

1 reference

d0_s6

panduriform

sometimes

1 reference

d0_s6

7

90

1 reference

d0_s6

2

25

1 reference

d0_s6

reduced

progressively; distally

1 reference

d0_s6

attenuate

1 reference

d0_s6

cuneate

more or less

1 reference

d0_s6

fixation

auriculate-clasping

1 reference

d0_s6

constricted

slightly

1 reference

d0_s6

serrate

1 reference

d0_s6

entire

1 reference

d0_s6

purplish

often

1 reference

d0_s7

arrangement

divaricate

1 reference

d0_s7

orientation

ascending

1 reference

d0_s7

slender

1 reference

d0_s7

inflorescence peduncle

atypical some measurement

8

10

1 reference

d0_s8

inflorescence peduncle

10

40

1 reference

d0_s8

inflorescence peduncle

hispid

sparsely to densely

1 reference

d0_s8

inflorescence peduncle bract

lanceolate

linear-lanceolate

1 reference

d0_s8

inflorescence peduncle bract

3

12

1 reference

d0_s8

inflorescence involucre

campanulate

1 reference

d0_s9

inflorescence involucre

5

6

1 reference

d0_s9

linear-lanceolate

1 reference

d0_s10

linear

1 reference

d0_s10

unequal

more or less

1 reference

d0_s10

texture

indurate

1 reference

d0_s10

hyaline

more or less narrowly

1 reference

d0_s10

texture

scarious

1 reference

d0_s10

relief

erose

1 reference

d0_s10

ciliolate

sometimes; distally

1 reference

d0_s10

position

outer

sometimes

1 reference

d0_s10

orientation

spreading

more or less squarrose

1 reference

d0_s10

acute

acuminate

1 reference

d0_s10

mucronulate

1 reference

d0_s10

sparsely hirsutulous

glabrate or glabrous

1 reference

d0_s10

glabrous

1 reference

d0_s10

hirsutulous

sparsely

1 reference

d0_s10

inflorescence flower ray-floret

atypical quantity

25

30

1 reference

d0_s11

inflorescence flower ray-floret

17

25

1 reference

d0_s11

usually lavender

blue

1 reference

d0_s12

white

rarely

1 reference

d0_s12

inflorescence flower ray lamina

atypical length

12

15

1 reference

d0_s12

inflorescence flower ray lamina

7.5

12

1 reference

d0_s12

inflorescence flower ray lamina

1

2

1 reference

d0_s12

cream colored

1 reference

d0_s14

light yellow becoming purple or brown

becoming; becoming

1 reference

d0_s14

3.5

5

1 reference

d0_s14

inflorescence flower corolla tube

variability

equaling

more or less

1 reference

d0_s14

inflorescence flower corolla tube

campanulate

1 reference

d0_s14

inflorescence flower corolla lobe

triangular

1 reference

d0_s14

inflorescence flower corolla lobe

0.5

1

1 reference

d0_s14

purplish-tinged

1 reference

d0_s15

compressed

more or less

1 reference

d0_s15

4-6-nerved

1 reference

d0_s15

cylindro-oblanceoloid

obovoid

1 reference

d0_s15

purplish-tinged

1 reference

d0_s15

compressed

more or less

1 reference

d0_s15

4-6-nerved

1 reference

d0_s15

atypical some measurement

3

3.5

1 reference

d0_s15

2

3

1 reference

d0_s15

purplish-tinged

1 reference

d0_s15

compressed

more or less

1 reference

d0_s15

4-6-nerved

1 reference

d0_s15

strigillose

sparsely to moderately

1 reference

d0_s15

fruit pappus

sordid

1 reference

d0_s16

fruit pappus

3.5

4.5

1 reference

d0_s16

chromosome

32

1 reference

d0_s16

inflorescence flower petal venation midvein

hispid

glabrate

1 reference

d0_s3

general structure bundle array

broad

1 reference

d0_s7

general structure bundle array

prominence

flat

more or less

1 reference

d0_s7

general structure bundle array

corymbo-paniculiform

1 reference

d0_s7

inflorescence flower disc-floret

atypical quantity

50

65

1 reference

d0_s13

inflorescence flower disc-floret

39

50

1 reference

d0_s13

fruit cypsela

dull

1 reference

d0_s15

fruit cypsela

purple

1 reference

d0_s15

fruit cypsela

stramineous

1 reference