Symphyotrichum Nees (Q2413)
Symphyotrichum is a taxon with the rank genus within the tribe Astereae
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Symphyotrichum Nees
|
Symphyotrichum is a taxon with the rank genus within the tribe Astereae
|
Statements
taxon/id/Symphyotrichum Nees
0 references
Symphyotrichum Nees
Symphyotrichum
Nees
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.
accepted
1 reference
Stems ascending to erect, rarely vinelike, usually simple, sometimes branched distally, seldom proximally, usually hairy in decurrent lines at least distally, proximally often glabrous, sometimes hairy, sometimes stipitate-glandular distally.
1 reference
petiolate (often basal and proximal, sometimes distal, petioles often ± winged, clasping, ciliate) or sessile;
1 reference
blades (often purplish abaxially, 1, sometimes to 3-nerved) cordate to elliptic, oblanceolate, or spatulate (basal), ovate, elliptic, lanceolate, oblanceolate, or linear (cauline, usually progressively, sometimes abruptly or little reduced distally), margins serrate, crenate, or entire, scabrous or ciliate, faces glabrous or hairy, sometimes stipitate-glandular.
1 reference
Heads radiate or disciform (sect. Conyzopsis), usually in paniculiform, sometimes in racemiform or subcorymbiform arrays, sometimes borne singly.
1 reference
Involucres cylindric or campanulate to hemispheric, 4–22 mm diam.
1 reference
Phyllaries 20–84 in (3–) 4–6 (–9) series, 1 (–3) -nerved (not keeled), oblong-lanceolate or oblanceolate or spatulate (outer and mid) to linear (innermost), unequal to subequal, outer sometimes foliaceous, bases usually indurate, margins usually scarious, erose, hyaline or not, (apices usually with a well-defined green zone, sometimes ± foliaceous), faces glabrous or hairy, sometimes stipitate-glandular.
1 reference
Receptacles flat to slightly convex, pitted, epaleate.
1 reference
usually in 1 series, in 2–5 series, rarely in 4–5+ series in S. frondosum, pistillate, fertile;
1 reference
corollas white, pink, blue, or purple (rays 0, peripheral pistillate florets in 2–5+ series, corollas lacking laminae in sect. Conyzopsis).
1 reference
Disc-florets (7–) 15–50 (–110), bisexual, fertile;
1 reference
corollas yellow to white, becoming purplish to reddish or pinkish at maturity, ± ampliate, tubes usually shorter than funnelform (cylindric in sect. Conyzopsis) throats, lobes 5, erect, spreading, or reflexed, deltate, triangular, or lanceolate;
1 reference
style-branch appendages lanceolate.
1 reference
Cypselae usually obovoid or obconic, sometimes fusiform, ± compressed, nerves (2–) 3–5 (–10, sometimes dark-translucent), faces glabrous or strigillose, eglandular (sparsely stipitate-glandular in S. novae-angliae);
1 reference
pappi persistent, of (20–) 25–40 (–55) white to brownish, ± equal, barbellate, apically attenuate bristles in 1 (–3) series.
1 reference
x = 8, 7, 5, 13, 18, 21.
1 reference
1 reference
1 reference
1 reference
1 reference
seldom proximally; proximally; usually
1 reference
1 reference
1 reference
stipitate-glandular
sometimes; distally
1 reference
1 reference
1 reference
1 reference
1 reference
cordate
elliptic oblanceolate or spatulate ovate elliptic lanceolate oblanceolate or linear
1 reference
cordate
elliptic oblanceolate or spatulate ovate elliptic lanceolate oblanceolate or linear
1 reference
cordate
elliptic oblanceolate or spatulate ovate elliptic lanceolate oblanceolate or linear
1 reference
cordate
elliptic oblanceolate or spatulate ovate elliptic lanceolate oblanceolate or linear
1 reference
cordate
elliptic oblanceolate or spatulate ovate elliptic lanceolate oblanceolate or linear
1 reference
cordate
elliptic oblanceolate or spatulate ovate elliptic lanceolate oblanceolate or linear
1 reference
cordate
elliptic oblanceolate or spatulate ovate elliptic lanceolate oblanceolate or linear
1 reference
cordate
elliptic oblanceolate or spatulate ovate elliptic lanceolate oblanceolate or linear
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
stipitate-glandular
sometimes
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
stipitate-glandular
sometimes
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
at maturity , more or less ampliate , tubes usually shorter
1 reference
1 reference
1 reference
at maturity , more or less ampliate , tubes usually shorter
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
singly
in racemiform or subcorymbiform arrays; sometimes
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference