Tanacetum Linnaeus (Q2113)
Jump to navigation
Jump to search
Tanacetum is a taxon with the rank genus within the subtribe Anthemidinae
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Tanacetum Linnaeus
|
Tanacetum is a taxon with the rank genus within the subtribe Anthemidinae
|
Statements
taxon/id/Tanacetum Linnaeus
0 references
Tanacetum Linnaeus
Tanacetum
Linnaeus
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 19: Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford University Press, New York.
accepted
1 reference
Stems 1 or 2–5+, erect or prostrate to ascending, branched proximally and/or distally, glabrous or hairy (hairs basifixed and/or medifixed, sometimes stellate).
1 reference
petiolate or sessile;
1 reference
blades mostly obovate to spatulate, usually 1–3-pinnately lobed, ultimate margins entire, crenate, or dentate, faces glabrous or hairy.
1 reference
Heads usually radiate, sometimes disciform (or quasi-radiate or radiant), usually in lax to dense, corymbiform arrays, rarely borne singly.
1 reference
Involucres mostly hemispheric or broader, (3–) 5–22+ mm diam.
1 reference
Phyllaries persistent, (20–) 30–60+ in (2–) 3–5+ series, distinct, ± ovate to oblong or oblong to lanceolate or lance-linear (sometimes carinate), unequal, margins and apices (pale to dark-brown or blackish) scarious (tips sometimes dilated).
1 reference
Receptacles flat to conic or hemispheric (sometimes hairy), epaleate.
1 reference
Ray-florets usually 10–21+ (pistillate and fertile or neuter; corollas pale-yellow to yellow or white, usually with yellowish bases [pink], laminae oblong to flabellate), sometimes 0 (in disciform or quasi-radiate or radiant heads, peripheral pistillate florets 8–30+; corollas pale-yellow, ± zygomorphic, lobes 3–4, sometimes ± raylike).
1 reference
Disc-florets 60–300+, bisexual, fertile;
1 reference
corollas yellow, tubes ± cylindric, throats narrowly funnelform to campanulate, lobes (4–) 5, ± deltate.
1 reference
Cypselae obconic or ± columnar (circular in cross-section), ribs (4–) 5–10 (–12+), faces usually gland-dotted, sometimes glabrous (pericarps without myxogenic cells or resin sacs, embryo-sac development tetrasporic);
1 reference
x = 9 (polyploidy).
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
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 lax to dense , corymbiform arrays; rarely
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference