Ambrosia monogyra

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

Madroño 49: 143. 2002

Basionyms: 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 ± cup-shaped, 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, Baja California Sur, Chihuahua, Sinaloa, Sonora).

Discussion

Ambrosia monogyra may occur in western Nevada.

Selected References

None.

Lower Taxa

None.

Facts about "Ambrosia monogyra"
AuthorJohn L. Strother +
Authority(Torrey & A. Gray) Strother & B. G. Baldwin +
BasionymsHymenoclea monogyra +
DistributionAriz. +, Calif. +, N.Mex. +, Tex. +, Mexico (Baja California +, Baja California Sur +, Chihuahua +, Sinaloa + and Sonora). +
Elevation10–500 m +
HabitatDesert washes, ravines +
Illustration copyrightFlora of North America Association +
IllustratorBarbara Alongi +
PhenologyFlowering (May–)Aug–Nov. +
Publication titleMadroño +
Publication year2002 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V19-20-21/V21 4.xml +
SynonymsFranseria + and Hymenoclea +
Taxon familyAsteraceae +
Taxon nameAmbrosia monogyra +
Taxon parentAmbrosia +
Taxon rankspecies +
VolumeVolume 21 +