Difference between revisions of "Coreopsis sect. Calliopsis"
Trans Amer. Philos. Soc., n. s. 7: 360. 1841.
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|name=Undefined sect. Calliopsis | |name=Undefined sect. Calliopsis | ||
|authority=Reichenbach | |authority=Reichenbach | ||
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name=Coreopsis sect. Calliopsis | name=Coreopsis sect. Calliopsis | ||
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|authority=(Reichenbach) Nuttall | |authority=(Reichenbach) Nuttall | ||
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | ||
Latest revision as of 21:12, 5 November 2020
Annuals (sometimes persisting). Leaves basal and cauline or mostly cauline; usually opposite, rarely alternate; blades simple or 1–2+-pinnately lobed. Calyculi of 6–10 bractlets. Phyllaries 8. Ray florets (5–)8, neuter; laminae yellow or ± proximally red-brown to purple (sometimes almost wholly red-brown to purple), obovate to cuneate, broadest distal to middles, apices ± 3-lobed (middle lobes often toothed). Disc florets 40–80(–100+); corollas red-brown to purple (at least at apices), lobes 4; style-branch apices ± truncate. Paleae linear (not distally dilated or attenuate). Cypselae ± oblong to spatulate, margins winged or not, wings ± membranous, entire, ± spreading, not ciliolate, faces glabrous, smooth or tuberculate; pappi 0, or of (1–)2 cusps or subulate scales 0.1–1(–1.4+) mm. x = 12 (+ 0–2 Bs).
Distribution
North America, Mexico.
Discussion
Species 3 (2 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Blades of cauline leaves usually 1-pinnate or simple; ray corollas usually yellow throughout, rarely with proximal red-brown blotch; pappi of 2, subulate scales (0.2–)0.4–1(–1.4+) mm | Coreopsis leavenworthii |
| 1 | Blades of cauline leaves usually 1–2(–3)-pinnate, seldom simple; ray corollas usually yellow with red-brown blotch, sometimes red-brown in proximal 1/3–9/10 and distally yellow, rarely yellow throughout; pappi 0, or of 1–2, bristly cusps or subulate scales 0.1–1+ mm | Coreopsis tinctoria |