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Platyschkuhria integrifolia

Platyschkuhria integrifolia variety oblongifolia

Platyschkuhria integrifolia variety oblongifolia.  SynonymBahia nudicaulis. (Basin Daisy)
Asteraceae (Sunflower Family)

Semi-desert. Openings, hills. Spring, summer, fall.
Lower Cross Canyon, Utah, May 17, 2015
.
Canyons of the Ancients National Monument, May 23, 2011.

Platyschkuhria integrifolia
Platyschkuhria integrifolia variety oblongifolia.  SynonymBahia nudicaulis. (Basin Daisy)
Asteraceae (Sunflower Family)

Semi-desert. Openings, hills. Spring, summer, fall.
Bisti/De-Na-Zin Wilderness, October 9, 2007.

This aromatic taxa occurs just in the Four Corners states, although there are several other varieties of Platyschkuhria integrifolia that are found north of the Four Corners states and one that occurs in Wyoming and Montana. 

Platyschkuhria integrifolia grows singly or in small clumps on hot, barren-seeming ground, sometimes in gulches where it gets just the small amount of water it needs.  Plants often can be found dotting the ground in a pattern indicating that they are sprouting from spreading roots.  Plants normally bloom in early summer but rains can, as they did for the plant pictured at left, bring on fall flowers.

In 1874 Asa Gray named this plant Schkuhria integrifolia from a specimen collected by Charles Parry in Wyoming.  In 1883 Gray renamed the plant Bahia nudicaulis   In 1906 Per Axel Rydberg renamed it Platyschkuhria integrifolia.  "Platy" is Greek for broad and refers to the leaves; "schkuhria" is a similar looking Asteraceae genus with narrow leaves, so the name Platyschkuhria means, "similar to Schkuhria but with broader leaves".  Christian Schkuhr was a German gardener who published a Handbook of Botany.  (More biographical information about Schkuhr.)

Platyschkuhria integrifolia
Platyschkuhria integrifolia variety oblongifolia.  SynonymBahia nudicaulis. (Basin Daisy)
Asteraceae (Sunflower Family)

Semi-desert. Openings, hills. Spring, summer, fall.
McElmo Canyon, Canyons of the Ancients National Monument, June 9, 2007.

Plants can have one to few stems as in the above photograph or they can have multiple stems.

Platyschkuhria integrifolia
Platyschkuhria integrifolia variety oblongifolia.  SynonymBahia nudicaulis. (Basin Daisy)
Asteraceae (Sunflower Family)

Semi-desert. Openings, hills. Spring, summer, fall.
McElmo Canyon, Canyons of the Ancients National Monument, June 9, 2007.

Clumps of basal leaves are surrounded by last year's dead stems and leaves.

Platyschkuhria integrifolia variety oblongifolia

Platyschkuhria integrifolia variety oblongifolia

Platyschkuhria integrifolia variety oblongifolia.  SynonymBahia nudicaulis. (Basin Daisy)
Asteraceae (Sunflower Family)

Semi-desert. Openings, hills. Spring, summer. fall.
Bisti/De-Na-Zin Wilderness, October 9, 2007.

Notice a number of flower characteristics that help to identify this plant: 

In the top photograph at left you can see that ray flowers are rather short and are notched, often twice, at their tips producing two or three lobes.

In the bottom photograph at left you can see that phyllaries are almost equal in length but there are two distinct rows, one shorter outer row and the other a bit longer on the interior with just the tips showing (two inner tips show in the center of the photograph).

Also in the bottom photograph you can see that the phyllaries and flower stem have particles stuck to them, i.e., they have glandular, sticky, sometimes ball-tipped hairs to which all kinds of debris (sand, bugs, seeds) stick.  The hairs are best seen in silhouette along the left and right sides of the phyllaries and flower stem. 

And finally, notice the rounded, bulging mound of disk flowers.

Range map © John Kartesz,
Floristic Synthesis of North America

State Color Key

Species present in state and native
Species present in state and exotic
Species not present in state

County Color Key

Species present and not rare
Species present and rare
Species extirpated (historic)
Species extinct
Species noxious
Species exotic and present
Native species, but adventive in state
Eradicated
Questionable presence

Range map for Platyschkuhria integrifolia

Platyschkuhria integrifolia variety oblongifolia

Range map for Platyschkuhria integrifolia variety oblongifolia