Difference between revisions of "Ambrosia bidentata"

Michaux

Fl. Bor.-Amer. 2: 182. 1803.

Treatment appears in FNA Volume 21. Treatment on page 15. Mentioned on page 11.
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Ambrosia bidentata
 
name=Ambrosia bidentata
|author=
 
 
|authority=Michaux
 
|authority=Michaux
 
|rank=species
 
|rank=species
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|publication year=1803
 
|publication year=1803
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_14.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_14.xml
 
|tribe=Asteraceae tribe Heliantheae
 
|tribe=Asteraceae tribe Heliantheae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae

Revision as of 20:35, 16 December 2019

Annuals, 10–30(–100+) cm. Stems erect. Leaves mostly opposite; petioles 0–0.5 mm; blades ± lanceolate to lance-linear, 15–40+ × 3–6(–10+) mm, bases rounded to cordate, margins entire or with (1–)2(–4) basal lobes, abaxial and adaxial faces ± piloso-hispid and gland-dotted. Pistillate heads clustered, proximal to staminates; florets 1. Staminate heads: peduncles 0–0.5 mm; involucres obliquely cup-shaped (lateral lobe longer than others), 2.5–4 mm diam., piloso-hispid; florets 6–8+. Burs: bodies pyramidal, 5–8 mm, piloso-hispid, spines 4(–5), ± distal, ± acerose, 0.5–1 mm, tips straight.


Phenology: Flowering Jul–Oct.
Habitat: Dry, disturbed sites
Elevation: 200–500 m

Distribution

V21-14-distribution-map.gif

Ala., Ark., Conn., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Minn., Miss., Mo., N.C., Ohio, Okla., Tenn., Tex., Va., W.Va.

Discussion

Hybrids between Ambrosia bidentata and A. trifida have been recorded.

Selected References

None.

Lower Taxa

None.
... more about "Ambrosia bidentata"
John L. Strother +
Michaux +
Ala. +, Ark. +, Conn. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Md. +, Minn. +, Miss. +, Mo. +, N.C. +, Ohio +, Okla. +, Tenn. +, Tex. +, Va. +  and W.Va. +
200–500 m +
Dry, disturbed sites +
Flowering Jul–Oct. +
Fl. Bor.-Amer. +
Franseria +  and Hymenoclea +
Ambrosia bidentata +
Ambrosia +
species +