Hedosyne ambrosiifolia

(A. Gray) Strother

Madroño 47: 204. 2001.

Basionym: Euphrosyne ambrosiifolia A. Gray Smithsonian Contr. Knowl. 3(5): 102. 1852 (as ambrosiaefolia)
Synonyms: Cyclachaena ambrosiifolia (A. Gray) Rydberg Iva ambrosiifolia (A. Gray) A. Gray
Treatment appears in FNA Volume 21. Treatment on page 31.

Leaves: petioles 5–12 (–45) mm; blades 3–5 (–9) × 4–5 (–8) cm overall, lobes 1–3 mm wide. Peduncles 3–12+ mm. Involucres 2–3+ mm. Phyllaries: outer 5 sparsely strigose or glabrous. Paleae 1–1.5 mm. Functionally staminate florets: corollas 1.5–2 mm. Cypselae 1.4–1.7 mm. 2n = 36.


Phenology: Flowering Jul–Sep.
Habitat: Disturbed sites (roadsides, washes, etc.), in sandy, gypseous, or calcareous soils
Elevation: 1000–2000 m

Distribution

V21-56-distribution-map.gif

Ariz., N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Sonora), Mexico (Zacatecas)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Hedosyne ambrosiifolia"
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 +
(A. Gray) Strother +
decurrent +
Euphrosyne ambrosiifolia +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (9 cm90 mm <br />0.09 m <br />) +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
lobed;ovate;lanceolate +
4cm;5cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
scabrellous +  and tuberculate +
obcompressed +  and pyriform +
fertile +  and bisexual +
Ariz. +, N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Durango) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +, Mexico (Sonora) +  and Mexico (Zacatecas) +
1000–2000 m +
scabrellous +
winged +  and beaked +
dispersed +
Disturbed sites (roadsides, washes, etc.), in sandy, gypseous, or calcareous soils +
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 +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
conspicuous +
deltate +
1mm +  and 3mm +
dentate to pinnatifid or palmatifid +  and entire +
glabrous +  and strigose +
2-carpellate +
glabrate +  and hairy +
spatulate;linear +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
membranous +
persistent +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering Jul–Sep. +
10 +  and 12 +
unequal +  and subequal +
bearing subulate enations +, hairy +  and bristly +
hemispheric +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Cyclachaena ambrosiifolia +  and Iva ambrosiifolia +
Hedosyne ambrosiifolia +
Hedosyne +
species +
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 +