MATRICARIA

Matricaria has been confused with Tripleurospermum (see discussion under the latter). Typification of Matricaria was discussed by K. Bremer and C. J. Humphries (1993), who rejected the arguments of S. Rauschert (1974) in favor of the use of Chamomilla over Matricaria.

apex orientation or shape	oblique +
apex shape	rounded + and obtuse +
array architecture	open + and corymbiform +
base architecture	sheathing + and clasping +
base external texture	indurate +
base shape	auriculate +
blade shape	spatulate +, oblong +, ovate + and lobed +
chromosome count	9 +
corolla architecture or shape	asymmetric +
corolla behaviour	persisting +
corolla coloration	white +, yellow + and green +
cypsela architecture or shape	asymmetric +
cypsela shape	obconic + and compressed +
face architecture or external texture or relief	smooth +
face external texture	glabrous +, glabrate + and hairy +
floret architecture	pistillate +
floret count	0 +
floret reproduction	fertile + and bisexual +
gland architecture	sessile +
gland arrangement	scattered +
gland coloration	golden +
hair fixation	basifixed +
head architecture	radiate + and discoid +
head arrangement	singly + and in open , corymbiform arrays +
involucre shape	patelliform +
lamina shape	elliptic-ovate +
leaf architecture	subpetiolate + and sessile +
leaf arrangement	alternate +
leaf behaviour	withering +
leaf condition	marcescent +
leaf position	basal + and cauline +
lobe arrangement or shape	linear +
lobe course or orientation	curved +
lobe orientation	spreading +
lobe shape	deltate +
margin coloration	hyaline +
margin external texture	scarious +
margin orientation	recurved +
margin shape	entire + and mucronate +
pappus count	0 +
pappus shape	coroniform +
phyllary duration	persistent +
phyllary fusion	distinct +
phyllary shape	oblong +, ovate +, spatulate +, linear-spatulate + and carinate +
phyllary size	subequal +
receptacle architecture	hollow + and epaleate +
receptacle shape	conic +, oblong-ovoid + and subulate +
rib count	5 +
stem architecture	branched +
stem external texture	glabrous + and glabrate +
stem habit	decumbent +
stem orientation	erect + and ascending +
throat shape	urceolate + and campanulate +
tube shape	dilated +
whole organism architecture	taprooted +
whole organism life style	annual +
whole organism odor	aromatic +

MATRICARIA

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