Difference between revisions of "Hedosyne"

Strother

Madroño 47: 204. 2001.

Etymology: Greek hedosyne, delight
Treatment appears in FNA Volume 21. Treatment on page 30. Mentioned on page 9, 25.
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|publication year=2001
 
|publication year=2001
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_55.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_55.xml
 
|tribe=Asteraceae tribe Heliantheae
 
|tribe=Asteraceae tribe Heliantheae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae

Revision as of 20:38, 16 December 2019

Annuals, 10–50(–100) cm. Stems erect, strictly branched. Leaves cauline; mostly alternate; petiolate; blades deltate or ovate to lanceolate, 1–3-pinnately lobed (lobes oblong to lance-linear), ultimate margins entire or toothed, faces ± scabrellous and/or hispid, usually gland-dotted. Heads ± disciform, usually in loose, (± bracteate or ebracteate) paniculiform arrays (sometimes 3–6+ distal to axil of each bract). Involucres ± hemispheric, 4–5 mm diam. Phyllaries persistent, 10–12+ in 2+ series, distinct, outer 5 herbaceous, inner scarious to membranous. Receptacles hemispheric; paleae spatulate to linear, membranous, sparsely hairy or glabrate, usually gland-dotted. Pistillate florets 5–10; corollas 0. Functionally staminate florets 5–10+; corollas whitish, funnelform, lobes 5, soon reflexed (filaments ± connate, anthers weakly coherent or distinct). Cypselae pyriform, ± obcompressed, finely striate, glabrous, little, if at all, gland-dotted; pappi 0. x = 18.

Distribution

sw United States, n Mexico.

Discussion

Species 1.

Selected References

None.