Difference between revisions of "Ixeris"
in F. Cuvier, Dict. Sci. Nat. ed. 2, 25: 62. 1822.
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|accepted_name=Ixeris | |accepted_name=Ixeris | ||
| − | |accepted_authority=(Cassini) Cassini | + | |accepted_authority=(Cassini) Cassini |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in F. Cuvier, Dict. Sci. Nat. ed. | |title=in F. Cuvier, Dict. Sci. Nat. ed. | ||
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name=Ixeris | name=Ixeris | ||
|author=John L. Strother | |author=John L. Strother | ||
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|rank=genus | |rank=genus | ||
|parent rank=tribe | |parent rank=tribe | ||
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|publication year=1822 | |publication year=1822 | ||
|special status= | |special status= | ||
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|tribe=Asteraceae tribe Cichorieae | |tribe=Asteraceae tribe Cichorieae | ||
|genus=Ixeris | |genus=Ixeris | ||
Latest revision as of 19:51, 5 November 2020
Perennials [annuals or biennials], (5–)10–30+ cm; taprooted (sometimes rhizomatous; stolons produced in some taxa). Stems (excluding stolons) 1–5+, erect (often scapiform), usually branched distally, glabrous. Leaves basal and cauline; petiolate; blades elliptic, oblong, orbiculate, or ovate [lanceolate to oblanceolate or linear], margins entire or denticulate to dentate [pinnately lobed] (faces glabrous [± scabrous]). Heads borne singly or in loose, corymbiform [paniculiform] arrays. Peduncles not inflated distally, usually bracteate. Calyculi of 3–10+, deltate to lanceolate bractlets. Involucres campanulate to cylindric, 2–5[–8+] mm diam. Phyllaries 5–10[–13+] in ± 1 series, linear [lanceolate], equal to subequal, margins sometimes scarious, apices obtuse to acute. Receptacles convex, weakly pitted, glabrous, epaleate. Florets 6–12+; corollas yellow [white or bluish]. Cypselae reddish brown [black], bodies ± fusiform, sometimes ± compressed, ribs (or wings) 10, beaks equal to or shorter than bodies, faces glabrous; pappi persistent, of 20–30, white [brown], ± equal, smooth or barbellulate bristles in 1 series. x = 8.
Distribution
Introduced; Southeast Asia.
Discussion
Species ca. 20 (1 in the flora).
Selected References
None.