Difference between revisions of "Pseudognaphalium micradenium"

(Weatherby) G. L. Nesom

Sida 19: 618. 2001.

Common names: Delicate rabbit-tobacco
Basionym: Gnaphalium obtusifolium var. micradenium Weatherby
Synonyms: Gnaphalium helleri var. micradenium (Weatherby) Mahler Pseudognaphalium helleri subsp. micradenium (Weatherby) Kartesz
Treatment appears in FNA Volume 19. Treatment on page 421. Mentioned on page 415, 416.
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|name=Gnaphalium helleri var. micradenium
 
|name=Gnaphalium helleri var. micradenium
 
|authority=(Weatherby) Mahler
 
|authority=(Weatherby) Mahler
}}{{Treatment/ID/Synonym
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}} {{Treatment/ID/Synonym
 
|name=Pseudognaphalium helleri subsp. micradenium
 
|name=Pseudognaphalium helleri subsp. micradenium
 
|authority=(Weatherby) Kartesz
 
|authority=(Weatherby) Kartesz
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|elevation=10–600 m
 
|elevation=10–600 m
 
|distribution=Ga.;Ind.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;N.C.;Pa.;S.C.;Tenn.;Va.;Wis.
 
|distribution=Ga.;Ind.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;N.C.;Pa.;S.C.;Tenn.;Va.;Wis.
|discussion=<p>Pseudognaphalium micradenium has a more northern and Appalachian distribution than P. helleri. A report of P. micradenium for Louisiana probably was based on specimens of P. helleri. The two species differ in vestiture and other features; stems of P. micradenium are more slender than those of its close relatives.</p>
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|discussion=<p><i>Pseudognaphalium micradenium</i> has a more northern and Appalachian distribution than <i>P. helleri</i>. A report of <i>P. micradenium</i> for Louisiana probably was based on specimens of <i>P. helleri</i>. The two species differ in vestiture and other features; stems of <i>P. micradenium</i> are more slender than those of its close relatives.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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|publication year=2001
 
|publication year=2001
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V19_689.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V19_689.xml
 
|tribe=Asteraceae tribe Gnaphalieae
 
|tribe=Asteraceae tribe Gnaphalieae
 
|genus=Pseudognaphalium
 
|genus=Pseudognaphalium

Revision as of 15:14, 18 September 2019

Annuals (fragrant), 15–60 cm; taprooted or fibrous-rooted. Stems glandular-puberulent (without persistent tomentum), stipitate glands 0.1–0.2 mm, stalks narrower than gland widths. Leaf blades linear to linear-lanceolate or linear-oblanceolate, 1.5–5.5 cm × 1.5–10 mm, bases not clasping, not decurrent, margins flat, faces bicolor, abaxial white to gray, tomentose, adaxial green, both minutely stipitate-glandular. Heads in corymbiform arrays. Involucres turbinate-campanulate, 5–6 mm. Phyllaries in 4–6 series, white to tawny white (hyaline, shiny), narrowly ovate to oblong, glabrous. Pistillate florets 47–78. Bisexual florets (7–)11–20. Cypselae ridged, smooth.


Phenology: Flowering Sep–Oct.
Habitat: Dry woods and openings, roadsides
Elevation: 10–600 m

Distribution

V19-689-distribution-map.gif

Ga., Ind., Ky., Maine, Md., Mass., Mich., Minn., Mo., N.H., N.J., N.Y., N.C., Pa., S.C., Tenn., Va., Wis.

Discussion

Pseudognaphalium micradenium has a more northern and Appalachian distribution than P. helleri. A report of P. micradenium for Louisiana probably was based on specimens of P. helleri. The two species differ in vestiture and other features; stems of P. micradenium are more slender than those of its close relatives.

Selected References

None.

Lower Taxa

None.
Guy L. Nesom +
(Weatherby) G. L. Nesom +
Gnaphalium obtusifolium var. micradenium +
Delicate rabbit-tobacco +
Ga. +, Ind. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Pa. +, S.C. +, Tenn. +, Va. +  and Wis. +
10–600 m +
Dry woods and openings, roadsides +
Flowering Sep–Oct. +
Gnaphalium helleri var. micradenium +  and Pseudognaphalium helleri subsp. micradenium +
Pseudognaphalium micradenium +
Pseudognaphalium +
species +