Difference between revisions of "Asteraceae (tribe Heliantheae) subtribe Varillinae"
in V. H. Heywood et al., Biol. Chem. Compositae 2: 719. 1978.
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Varillinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Varillinae | ||
Revision as of 21:00, 27 May 2020
Subshrubs [shrubs], (10–)20–30+ cm (sometimes rhizomatous). Leaves cauline; alternate [opposite]; ± sessile; blades linear to filiform (usually ± terete), margins entire, faces glabrous (not gland-dotted). Heads discoid, borne singly [in corymbiform arrays]. Calyculi 0. Involucres obconic. Phyllaries persistent, [30–]45–60 in [2–]4–5 series (distinct, lance-linear, unequal, outer shorter, all resin-nerved). Receptacles conic, paleate (paleae falling, linear, flattish or weakly conduplicate, scarious, resin-nerved). Ray florets 0. Disc florets [25–]60–150+, bisexual, fertile; corollas yellow, tubes shorter than or about equaling campanulate to cylindric throats, lobes 5, deltate; anther thecae pale; stigmatic papillae in 2 lines. Cypselae columnar to clavate, 8–15-ribbed, glabrous; pappi 0 [bristles].
Distribution
sw United States, Mexico.
Discussion
Genus 1, species 2 (1 in the flora).
Varillinae may be allied with Clappiinae (H. Robinson 1981) or with Jaumeinae (P. O. Karis and O. Ryding 1994).
Selected References
None.