Microseris D. Don (Q3143)
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Microseris is a taxon with the rank genus within the tribe Cichorieae
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Microseris D. Don
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Microseris is a taxon with the rank genus within the tribe Cichorieae
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Statements
taxon/id/Microseris D. Don
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Microseris D. Don
Microseris
D. Don
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
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Stems 1–30+, erect, simple or relatively few to many-branched (naked or leafy proximally and often distally), glabrous or scurfy-pubescent (especially proximal to heads).
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Leaves mostly basal, cauline 0 or reduced;
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petiolate (petioles broad to narrow);
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blades linear to lanceolate or oblanceolate, margins entire, lacerate, dentate, or pinnately lobed (often with narrow rachises and linear lobes; apices acuminate or acute to obtuse, faces glabrous or lightly scurfy-puberulent).
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Heads borne singly (nodding or inclined in bud, erect in flower and fruit).
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Peduncles (erect or curved-ascending) not distally inflated, ebracteate (annuals) or leafy (perennials except M. borealis).
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Calyculi 0 (outer phyllaries forming calyculiform series in annuals).
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Involucres fusiform, ovoid, globose, or campanulate, 3–30 mm diam.
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Phyllaries 5–40 in 3–5 series, unequal (outer usually shorter, ± deltate, inner ± lanceolate), herbaceous (midveins often thickened; abaxial faces glabrous or scurfy-puberulent, sometimes black-villous, often adaxially black-villous and minutely white-strigillose).
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Receptacles flat to low-convex, pitted, glabrous, epaleate.
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corollas yellow to orange or white, outer often purplish abaxially.
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Cypselae gray to brown or purplish, sometimes purplish-spotted, columnar, obconic, or fusiform (basal callosities knoblike), apices truncate, ribs 10–15, smooth or scabrous (white-villous on marginal cypselae in some species);
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pappi persistent, usually of 5–30, silvery to yellowish, brownish, or blackish aristate scales (often reduced to 0–4 in M. douglasii, of 24–48 bristles in M. borealis), scale bodies deltate, lanceolate, oblong, ovate, orbiculate, or linear, apices obtuse to acute or lacerate, faces glabrous or villous, aristae barbellulate to barbellate or plumose.
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lanceolate or oblanceolate
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silvery
yellowish brownish or blackish
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