Difference between revisions of "Platyschkuhria"
Bull. Torrey Bot. Club 33: 154. 1906.
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|discussion=<p>Species 1.</p> | |discussion=<p>Species 1.</p> | ||
|tables= | |tables= | ||
− | |references= | + | |references={{Treatment/Reference |
+ | |id=brown1983a | ||
+ | |text=Brown, G. K. 1983. Chromosome numbers in Platyschkuhria Rydberg (Compositae) and their sys-tematic significance. Amer. J. Bot. 70: 591–601. | ||
+ | }}{{Treatment/Reference | ||
+ | |id=ellison1971a | ||
+ | |text=Ellison, W. L. 1971. Taxonomy of Platyschkuhria (Compositae). Brittonia 23: 269–279. | ||
+ | }} | ||
}}<!-- | }}<!-- | ||
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|illustration copyright=Flora of North America Association | |illustration copyright=Flora of North America Association | ||
|distribution=w United States. | |distribution=w United States. | ||
− | |reference= | + | |reference=brown1983a;ellison1971a |
|publication title=Bull. Torrey Bot. Club | |publication title=Bull. Torrey Bot. Club | ||
|publication year=1906 | |publication year=1906 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_991.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae |
Revision as of 21:41, 16 December 2019
Perennials, 10–50+ cm (bases ± woody, branched caudices). Stems ± erect. Leaves basal and cauline; mostly alternate; petiolate; blades mostly lanceolate, sometimes ± ovate, margins en- tire, faces sparsely to densely scabrellous (hairs white, straight, conic or fusiform, 0.1–0.8 mm) and gland-dotted. Heads radiate, borne singly or (3–11) in loose, corymbiform to paniculiform arrays. Involucres campanulate to ± hemispheric, 12–25+ mm diam. Phyllaries 9–21 in ± 2 series, distinct, subequal, oblong or elliptic to lanceolate, herbaceous, membranous-margined (not purplish-margined), persistent, reflexed in fruit. Receptacles ± convex, ± pitted, epaleate. Ray florets 6–12, pistillate, fertile; corollas yellow. Disc florets 25–80+, bisexual, fertile; corollas yellow to orange (gland-dotted), tubes about equaling funnelform to campanulate throats, lobes 5, deltate to lance-deltate. Cypselae narrowly obpyramidal, 4-angled, finely nerved, ± hirsutulous (at least on angles), not gland-dotted; pappi of 8–16, (distinct) lance-elliptic to lance-subulate (basally and/or medially thickened, distally and/or laterally scarious) scales in 1 series (weakly, if at all, aristate). x = 12.
Distribution
w United States.
Discussion
Species 1.