Difference between revisions of "Microseris nutans"
Jahresber. Pollichia 22–24: 309. 1866.
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|tribe=Asteraceae tribe Cichorieae | |tribe=Asteraceae tribe Cichorieae | ||
|genus=Microseris | |genus=Microseris | ||
Revision as of 15:12, 18 September 2019
Perennials, 10–70 cm; taprooted. Stems branched, leafy distally. Leaves basal and cauline; petiolate (proximally, distal often sessile, clasping); blades linear to oblanceolate, 5–30 cm, margins entire or remotely dentate to pinnately lobed (usually with narrow rachises and linear teeth or lobes), apices acuminate, faces glabrous or lightly scurfy-puberulent. Peduncles erect or ascending (4–35 cm), ebracteate or leafy. Involucres broadly to narrowly ovoid in fruit, 8–22 mm. Phyllaries: apices erect, abaxial faces glabrous or scurfy-puberulent; outer lanceolate to triangular or linear, apices acute or acuminate; inner lanceolate, apices acuminate, both faces usually lightly black-villous. Florets 10–75; corollas yellow, surpassing phyllaries by 5+ mm. Cypselae columnar, 3.5–8 mm; pappi of 15–30, silvery, linear to lanceolate or oblong, (flat, glabrous) aristate scales 1–3(–5) mm (margins entire, apices acute or lacerate), aristae (slender) plumose. 2n = 18.
Phenology: Flowering Apr-–Jul.
Habitat: Various soils, grasslands, brushlands, woodlands, and coniferous forests
Elevation: 100–3000 m
Distribution
Alta., B.C.. Calif., Colo., Idaho, Mont., Nev., Oreg., S.Dak., Utah, Wash., Wyo.
Discussion
Selected References
None.