Cirsium horridulum Michx. var. horridulum

  • Filed As

    Asteraceae
    Cirsium horridulum Michx. var. horridulum

  • Collector(s)

    F. C. MacKeever N 561, 27 Jul 1961

  • Location

    United States of America. Massachusetts. Madaket, Nantucket Island.

  • Habitat

    Open sandy field.

  • Specimen Notes

    Record databased by staff or volunteers in the Tri-Trophic Thematic Collections Network Symbiota Portal. Transferred to NYGB database on 17 Dec. 2015.

  • Identifiers

    NY Barcode: 2051940

    Occurrence ID: d55b07c2-b3ef-401c-94dd-db3c21ec3c37

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  • Region

    North America

  • Country

    United States of America

  • State/Province

    Massachusetts

  • Locality

    Madaket, Nantucket Island

  • Distribution

    Map all specimens of this taxon

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FLORA OF NORTH AMERICA
Cirsium horridulum Michx. var. horridulum

David J. Keil

Shect *1 (Unicatie)/

HERBARIUM

N

No. 56l Family Compositae (Composite)

Scientific Name Cirsium horridulum Michx.

Common Name Yellow Thistle

Locality Madaket, Nantucket Island, Mass.

Habitat Open sandy field.

Collector Frank C. MacKeever Date July 27, 1961

FRANK C. MacKEEVER

close to C. horridulum Michx.
but with a trace of hybridization with
C. pumilum.seen in reduced false invol-
ucre, reduced leaf spininess,aborted
pollen. Pollen 60% normal, full grains
BnTi 58-61u diam.

OUIJ Annotated by	MOOTe, 1963	SA 168

Department of Agriculture, Ottawa.	21617—pm—4ss

ANNOTATION

AS DETERMINED

Gerald B. Ownbey	1963