Oxytenia acerosa

Nuttall

Proc. Acad. Nat. Sci. Philadelphia 4: 20. 1848.

IllustratedEndemic
Synonyms: Euphrosyne acerosa (Nuttall) Panero Iva acerosa (Nuttall) R. C. Jackson
Treatment appears in FNA Volume 21. Treatment on page 29.

Leaves: petioles 0–20+ mm; blades or lobes mostly 20–150 × 1–1.5 (–3) mm. Peduncles 1–3+ mm. Involucres 2–3+ mm. Phyllaries: outer 5–7 ± herbaceous, sericeous to strigillose, inner scarious to membranous, usually villous. Functionally staminate florets: corollas 2.5–3 mm. Paleae 1.8–2+ mm. Cypselae 1.5–2.5 mm. 2n = 36.


Phenology: Flowering Jun–Sep.
Habitat: Wet or seasonally wet, alkaline soils
Elevation: 100–2200 m

Distribution

V21-52-distribution-map.gif

Ariz., Calif., Colo., Nev., N.Mex., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Oxytenia acerosa"
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 +
Nuttall +
decurrent +
compound +  and simple +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
1mm;1.5mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
scabrellous +  and tuberculate +
3-4-angled +, obcompressed +  and obovoid +
fertile +  and bisexual +
Ariz. +, Calif. +, Colo. +, Nev. +, N.Mex. +  and Utah. +
100–2200 m +
glabrous +, glabrate +, usually sericeous +  and strigillose +
winged +  and beaked +
dispersed +
Wet or seasonally wet, alkaline 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 +
sessile +  and petiolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
deltate +
1mm +  and 1.5mm +
dentate to pinnatifid or palmatifid +  and entire +
sericeous +  and strigillose +
2-carpellate +
spatulate;cuneiform +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
membranous +
persistent +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Jun–Sep. +
10 +  and 15 +
unequal +  and subequal +
Proc. Acad. Nat. Sci. Philadelphia +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Euphrosyne acerosa +  and Iva acerosa +
Oxytenia acerosa +
Oxytenia +
species +
campanulate +  and cylindric +
toothed +  and entire +
perennial +, biennial +  and annual +
shrub +  and subshrub +