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Pseudognaphalium obtusifolium L.
RABBIT-TOBACCO
Gnaphalium obtusifolium

Life   Plantae   Dicotyledoneae   Asteraceae   Pseudognaphalium

Pseudognaphalium obtusifolium
© Copyright Bobby Hattaway 2011 · 5
Pseudognaphalium obtusifolium

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Pseudognaphalium obtusifolium
© Copyright Bobby Hattaway 2011 · 5
Pseudognaphalium obtusifolium
Pseudognaphalium obtusifolium
© Copyright Bobby Hattaway 2011 · 5
Pseudognaphalium obtusifolium

Pseudognaphalium obtusifolium
© Copyright Bobby Hattaway 2011 · 5
Pseudognaphalium obtusifolium
Pseudognaphalium obtusifolium
© Copyright Bobby Hattaway 2011 · 5
Pseudognaphalium obtusifolium

Pseudognaphalium obtusifolium
© Copyright Bobby Hattaway 2011 · 5
Pseudognaphalium obtusifolium
Pseudognaphalium obtusifolium
© Les Mehrhoff, 2008-2010 · 4
Pseudognaphalium obtusifolium

Pseudognaphalium obtusifolium, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Pseudognaphalium obtusifolium, whole plant - in flower - general view
Pseudognaphalium obtusifolium, inflorescence - lateral view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Pseudognaphalium obtusifolium, inflorescence - lateral view of flower

Pseudognaphalium obtusifolium, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Pseudognaphalium obtusifolium, leaf - basal or on lower stem
Pseudognaphalium obtusifolium, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Pseudognaphalium obtusifolium, stem - showing leaf bases

Pseudognaphalium obtusifolium
© Les Mehrhoff, 2008-2010 · 1
Pseudognaphalium obtusifolium
Pseudognaphalium obtusifolium
© John Pickering, 2004-2017 · 1
Pseudognaphalium obtusifolium

Associates · map
FamilyScientific name @ source (records)
Cicadellidae  Empoasca abrupta @ III (2)

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Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Pseudognaphalium obtusifolium (L.) Hilliard & Burtt ( Gnaphalium obtusifolium ) Fragrant Cudweed
Asteraceae — Aster family
Native
Pseudognaphalium obtusifolium
Middle Run Valley Natural Area
October 2001 Pseudognaphalium obtusifolium
Unionville Barrens (PA)
September 2013

More information on this plant, from other sources.


Copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
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Gnaphalium obtusifolium L.

Gnaphalium obtusifolium plant

Family - Asteraceae

Stems - To 1m tall, arachnoid pubescent, typically single and simple from the base but branching near apex, erect, herbaceous, terete.

Gnaphalium obtusifolium stem

Leaves - Alternate, linear to linear-oblong or linear lanceolate, to +/- 7cm long, entire, many per stem, abaxial surface typically with dense arachnoid pubescence, adaxial surface dark green and somewhat shiny. Lower leaves typically dried at anthesis.

Inflorescence - Branching corymbose arrangement at top of stems, generally rounded or dome shaped with age.

Involucre - To +/-6mm tall (long). Phyllaries scarious-white, imbricate, appressed, arachnoid pubescent.

Gnaphalium obtusifolium involucre Involucre(s).

Ray flowers - Absent.

Disk flowers - Minute, creamy white to pale yellow, mostly included within the involucre. Pappus of capillary bristles.

Gnaphalium obtusifolium flowers Disk flowers in the involucre.

Flowering - July - November.

Habitat - Pastures, waste ground, disturbed sites, woodland, prairies, thickets, roadsides, railroads.

Origin - Native to U.S.

Other info. - This is an easy species to identify. The arachnoid pubescent stems and white involucres are characteristic. The plant can be found throughout Missouri.
Steyermark lists two varieties for the state. Variety obtusifolium (pictured above) has stems and leaves with a dense white hairiness. Variety micradenium has stems with glandular hairs and no dense white hairiness. This variety is much less common.

Photographs taken in Eminence, MO., 9-21-03.


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Following modified from Plants Database, United States Department of Agriculture
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Following modified from Flora of North America
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Link to Flora of North America home
 
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FNA Vol. 19, 20 and 21 Page 415, 416, 420 , 421 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Pseudognaphalium

7. Pseudognaphalium obtusifolium (Linnaeus) Hilliard & B. L. Burtt, Bot. J. Linn. Soc. 82: 205. 1981.

Eastern rabbit-tobacco, gnaphale à feuilles obtuses

Gnaphalium obtusifolium Linnaeus, Sp. Pl. 2: 851. 1753; G. obtusifolium var. praecox Fernald

Annuals or winter annuals (sometimes faintly fragrant), (10—)30—100 cm; taprooted. Stems white-tomentose, sometimes lightly so, usually not glandular, rarely glandular near bases. Leaf blades linear-lanceolate to elliptic or oblanceolate, 2.5—10 cm × 2—10 mm (relatively even-sized), bases not clasping, not decurrent, margins flat, faces bicolor, abaxial white-tomentose, adaxial green, usually glabrous or slightly glandular, sometimes with persistent light tomentum. Heads in corymbiform (sometimes rounded to elongate) arrays. Involucres broadly campanulate, 5—7 mm. Phyllaries in 4—6 series, white (opaque, usually shiny, sometimes dull), ovate to ovate-oblong, glabrous or tomentose (bases). Pistillate florets 38—96. Bisexual florets 4—8(—11). Cypselae ridged, smooth.

Flowering Aug—Oct. Open sites, often disturbed, roadsides, fields, pastures, open woods, in various soils, most abundantly in sand; 5—200 m; N.B., N.S., Ont., P.E.I., Que.; Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis.

SELECTED REFERENCE

Nesom, G. L. 2001c. Notes on variation in Pseudognaphalium obtusifolium (Asteraceae: Gnaphalieae). Sida 19: 615—619.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Pseudognaphalium+obtusifolium&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Pseudognaphalium+obtusifolium&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Pseudognaphalium+obtusifolium&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

Updated: 2017-11-25 12:22:25 gmt
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