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.
 TaxonIllustrator 
FNA21 P05 Oxytenia acerosa.jpegOxytenia acerosa
Leuciva dealbata
Hedosyne ambrosiifolia
Linda Ann Vorobik
Barbara Alongi
Yevonn Wilson-Ramsey

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 glanddotted. 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 glanddotted. 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, glanddotted; pappi 0. x = 18.

Distribution

sw United States, n Mexico

Discussion

Species 1.

Selected References

None.

... more about "Hedosyne"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
John L. Strother +
Strother +
decurrent +
compound +  and simple +
lobed;ovate;lanceolate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
scabrellous +  and tuberculate +
obcompressed +  and pyriform +
fertile +  and bisexual +
sw United States +  and n Mexico +
Greek hedosyne, delight +
scabrellous +
staminate +  and pistillate +
winged +  and beaked +
dispersed +
in corymbiform , glomerate , paniculiform , racemiform or spiciform , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
scarious +  and membranous +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
hemispheric +
conspicuous +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
glabrate +  and hairy +
spatulate;linear +
membranous +
persistent +
10 +  and 12 +
unequal +  and subequal +
bearing subulate enations +, hairy +  and bristly +
hemispheric +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Ambrosieae +  and Undefined (tribe Undefined) subtribe Iveae +
Hedosyne +
Asteraceae (tribe Heliantheae) subtribe Ambrosiinae +
campanulate +  and cylindric +
toothed +  and entire +
50 cm500 mm <br />0.5 m <br /> (100 cm1,000 mm <br />1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (50 cm500 mm <br />0.5 m <br />) +
shrub +  and subshrub +