Ambrosia monogyra

(Torrey & A. Gray) Strother & B. G. Baldwin

Madroño 49: 143. 2002.

Basionym: Hymenoclea monogyra Torrey & A. Gray Mem. Amer. Acad. Arts, n. s. 4: 79. 1849
Treatment appears in FNA Volume 21. Treatment on page 12. Mentioned on page 10.

Shrubs, 30–150 (–400) cm. Stems erect. Leaves mostly alternate; petioles 0; blades mostly filiform, 5–30 (–65+) × 0.5–1.5 mm, sometimes with 3 (–5+) filiform lobes, abaxial faces glabrous or glabrate, often vernicose, adaxial faces densely scabrellous (white). Pistillate heads ± intermixed with staminates; florets 1. Staminate heads: peduncles 0–0.5 mm; involucres ± cupshaped, 2–4 mm diam., ± glabrate, ± vernicose; florets 5–12+. Burs: bodies fusiform to pyriform, 4–5 mm, stipitate-glandular, wings 7–12+, mostly around middles, oblanceolate to cuneiform, 2–3 × 1–2 mm. 2n = 36.


Phenology: Flowering (May–)Aug–Nov.
Habitat: Desert washes, ravines
Elevation: 10–500 m

Distribution

V21-4-distribution-map.gif

Ariz., Calif., N.Mex., Tex., Mexico (Baja California), Mexico (Baja California Sur), Mexico (Chihuahua), Mexico (Sinaloa), Mexico (Sonora)

Discussion

Ambrosia monogyra may occur in western Nevada.

Selected References

None.

Lower Taxa

None.
... more about "Ambrosia monogyra"
glabrate +  and glabrous +
not tailed +, rounded +  and obtuse +
coherent +  and distinct +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, glomerate +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
(Torrey & A. Gray) Strother & B. G. Baldwin +
decurrent +
Hymenoclea monogyra +
compound +  and simple +
3 cm30 mm <br />0.03 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
filiform +
0.5mm;1.5mm +
winged;ribbed;winged;ribbed +
stipitate-glandular +
tuberculate +  and rugose +
fusiform;pyriform +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
barbellulate +  and barbellate +
purplish +  and whitish +
villous +, strigillose +, hispidulous +, glabrous +  and warty +
tuberculate +
globose +  and obovoid pyramidal pyriform obconic or fusiform +
fertile +  and bisexual +
Ariz. +, Calif. +, N.Mex. +, Tex. +, Mexico (Baja California) +, Mexico (Baja California Sur) +, Mexico (Chihuahua) +, Mexico (Sinaloa) +  and Mexico (Sonora) +
10–500 m +
stipitate-glandular +, glabrate +  and hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Desert washes, ravines +
staminate +  and pistillate +
in corymbiform , glomerate , paniculiform , racemiform or spiciform , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
membranous +  and scarious +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
cup-shaped +
conspicuous +
petiolate +  and sessile +
incurved;erect +
filiform +
dentate to pinnatifid or palmatifid +  and entire +
connate +  and distinct +
2-carpellate +
stipitate-glandular +, hirtellous +  and villous +
spatulate;linear +
membranous +
persistent +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Flowering (May–)Aug–Nov. +
5 +  and 16 +
unequal +  and subequal +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
prostrate +  and decumbent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Franseria +  and Hymenoclea +
Ambrosia monogyra +
Ambrosia +
species +
campanulate +  and cylindric +
toothed +  and entire +
perennial +  and annual +
10 cm100 mm <br />0.1 m <br /> (400 cm4,000 mm <br />4 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
7 +  and 12 +
oblanceolate +  and cuneiform +
1mm +  and 2mm +