dcsimg

Comments ( anglais )

fourni par eFloras
Ambrosia ambrosioides has been reported from California; it may occur there.
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 21: 10, 12, 13 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras

Description ( anglais )

fourni par eFloras
Shrubs, 60–150+ cm. Stems erect. Leaves mostly alternate; petioles 10–35 mm; blades lanceolate to narrowly triangular, 50–150+ × 18–55+ mm, bases truncate to cordate, margins coarsely toothed (not spiny), abaxial and adaxial faces ± hirsutulous and gland-dotted. Pistillate heads clustered on lateral axes, proximal to staminates; florets 4–5. Staminate heads: peduncles 2–4(–12) mm; involucres ± saucer-shaped, 4–6+ mm diam., ± hirsutulous; florets 40–60+. Burs: bodies ± fusiform, 6–8+ mm, stipitate-glandular, spines 60–80+, scattered, subulate, 4–6 mm, tips uncinate. 2n = 36.
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 21: 10, 12, 13 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras

Synonym ( anglais )

fourni par eFloras
Franseria ambrosioides Cavanilles, Icon. 2: 79, plate 200. 1793
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 21: 10, 12, 13 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras

Comprehensive Description ( anglais )

fourni par North American Flora
Franseria ambrosioides Cav. Ic. 2: 79. 1793
Xanthidium ambrosioides Delpino, Studi Lign. Anem. 63. 1871. Gaertneria ambrosioides Kuntze, Rev. Gen. 339. 1891.
A shrubby perennial, 1-2 m. high; branches grayish-hirsute as well as glandular-puberulent; leaves simple; petioles 1-3 cm. long; blades lanceolate, 4-15 cm. long, truncate, subcordate, or cuneate at the base, acuminate at the apex, coarsely irregularly dentate, rather thick, rather strongly reticulate-veined beneath, more or less grayish-hirsutulous; heads in simple or somewhat branched racemes at the end of the branches and in the upper leaf -axils; staminate heads many, above the pistillate ones, on recurved peduncles 4-6 mm. long, saucer-shaped, 6-8 mm. broad, with 8-12 triangular dobes, hirsutulous and glandular-puberulent; paleae shorter than the tubular membranous corolla; pistillate involucre subtended by a few lanceolate bractlike leaves; fruit IO73O mm. long; beaks about 4 mm. long, subulate; spines glandularpuberulent, 3-4 mm. long.
Type locality: Mexico.
Distribution: From Arizorfa to Durango, Sinaloa, and Lower California.
licence
cc-by-nc-sa-3.0
citation bibliographique
Per Axel, Rydberg. 1922. CARDUALES; AMBROSIACEAE, CARDUACEAE. North American flora. vol 33(1). New York Botanical Garden, New York, NY
original
visiter la source
site partenaire
North American Flora

Ambrosia ambrosioides ( anglais )

fourni par wikipedia EN

Ambrosia ambrosioides, also known as canyon ragweed or chicura, is a ragweed found in the deserts of northern Mexico (Baja California, Baja California Sur, Chihuahua, Durango, Sonora), Arizona, and California (Ventura + San Diego Counties).[2][3][4][5]

Growing as a shrub from 1–2 meters high, its elongate, coarsely-toothed leaves range from 4–18 cm long and 1.5–4 cm wide. It is monoecious, with both terminal and axillary racemes consisting of staminate heads occurring above their pistillate counterparts. Flowering occurs mainly in February through April. The fruits are 10–15 mm burs covered with hooked spines.[2]

Somewhat similar in appearance to Ambrosia ilicifolia, A. ilicifolia has sessile leaves with a reticulate pattern of veins, and the marginal teeth developed into short spines.[2]

This ragweed can be found in sandy washes and other disturbed areas such as roadsides, and is sometimes seen growing in rock crevices.[2]

The Seri people smoked its dried leaves, and used the roots to make medicinal teas and pigments.[6]

Galls

This species is host to the following insect induced galls:

Aceria ambrosioides galls

external link to gallformers

References

licence
cc-by-sa-3.0
droit d’auteur
Wikipedia authors and editors
original
visiter la source
site partenaire
wikipedia EN

Ambrosia ambrosioides: Brief Summary ( anglais )

fourni par wikipedia EN

Ambrosia ambrosioides, also known as canyon ragweed or chicura, is a ragweed found in the deserts of northern Mexico (Baja California, Baja California Sur, Chihuahua, Durango, Sonora), Arizona, and California (Ventura + San Diego Counties).

Growing as a shrub from 1–2 meters high, its elongate, coarsely-toothed leaves range from 4–18 cm long and 1.5–4 cm wide. It is monoecious, with both terminal and axillary racemes consisting of staminate heads occurring above their pistillate counterparts. Flowering occurs mainly in February through April. The fruits are 10–15 mm burs covered with hooked spines.

Somewhat similar in appearance to Ambrosia ilicifolia, A. ilicifolia has sessile leaves with a reticulate pattern of veins, and the marginal teeth developed into short spines.

This ragweed can be found in sandy washes and other disturbed areas such as roadsides, and is sometimes seen growing in rock crevices.

The Seri people smoked its dried leaves, and used the roots to make medicinal teas and pigments.

licence
cc-by-sa-3.0
droit d’auteur
Wikipedia authors and editors
original
visiter la source
site partenaire
wikipedia EN