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.

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 +