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Lewis & Clark as Naturalists
The Collection: Species Details Lewis and Clark as Naturalists
Plant    Species Name:
Machaeranthera pinnatifida (Hook.) Shinners
syn. Amellus spinulosus Pursh, non Machaeranthera spinulosus Greene
syn. Aster pinnatifidus (Hook.) Kuntze
syn. Diplopappus pinnatifidus Hook.
syn. Dieteria spinulosa (Pursh) Nutt.
syn. Eriocarpum australe Greene
syn. Eriocarpum spinulosum (Pursh) Greene
syn. Eriocarpum wootonii Greene
syn. Haplopappus coulteri Harvey & Gray ex Gray
syn. Haplopappus texensis R.C. Jackson
syn. Machaeranthera australis (Greene) Shinners
syn. Machaeranthera pinnata (Nutt.) Shinners
syn. Sideranthus australis (Greene) Rydb.
syn. Sideranthus machaerantherus Small
syn. Sideranthus wootonii (Greene) Standl.
syn. Starkea pinnata Nutt.


Common Name:
lacy tansyaster


Chamberlain, South Dakota
Possibly around mouth of White River
  September 15, 1804

An image of the specimen in the Lewis and Clark herbarium. . . .

Machaeranthera pinnatifida (PH-LC 139).

The copyright for this image is retained by the Academy of Natural Sciences of Philadelphia; this image is used with their permission.

See following caption
collected by Thos. A. Williams 166, Cheyenne River, South Dakota, August 1891

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