Flora of North America species comparison

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Physaria hitchcockii subsp. hitchcockii

Physaria hitchcockii subsp. rubicundula
Photo is of parent taxon
Photo is of parent taxon
Habit Plants forming tufts; caudex not elongated, not elastic. Plants forming a loose mat; caudex elongated, elastic.
Basal leaves

petiole differentiated from blade (sometimes weakly);

blade oblanceolate to obovate.

petiole not differentiated from blade;

blade linear-oblanceolate.
Fruits

2.6–3.8 mm wide.

2.4–3.4 mm wide.
Anthers

1.4–1.8(–2) mm.

1.4–1.6 mm.

Physaria hitchcockii subsp. hitchcockii

Physaria hitchcockii subsp. rubicundula
Phenology Flowering Jun–Jul. Flowering May–Jun.
Habitat Gravelly or rocky limestone at or above timberline Pinyon-juniper communities on barren slopes
Elevation 2300-3500 m (7500-11500 ft) 2100-3400 m (6900-11200 ft)
Distribution
from FNA
NV; UT
[BONAP county map]
from FNA
UT
[BONAP county map]
Discussion

It is possible that populations of subsp. hitchcockii on the Table Cliff Plateau, Utah, are consubspecific with the nearby subsp. rubicundula. The leaf blades are indistinguishable from the material from Nevada and the plants do not form elongated, elastic caudices.

Subspecies hitchcockii is found in the Sheep Range and Spring Mountains (Charleston Mountain), Nevada, and on the Table Cliff Plateau, Utah, where it is limited to the white member of the limestone Wasatch (Claron) Formation.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

Subspecies rubicundula is found in talus of the pink and white members of the Wasatch (Claron) Formation of the Aquarius, Markagunt, and Paunsaugunt plateaus.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 7, p. 643. FNA vol. 7, p. 644.
Parent taxa Brassicaceae > tribe Physarieae > Physaria > Physaria hitchcockii Brassicaceae > tribe Physarieae > Physaria > Physaria hitchcockii
Sibling taxa
P. hitchcockii subsp. confluens, P. hitchcockii subsp. rubicundula
P. hitchcockii subsp. confluens, P. hitchcockii subsp. hitchcockii
Synonyms Lesquerella rubicundula, Lesquerella hitchcockii subsp. rubicundula, P. hitchcockii var. rubicundula, P. rubicundula
Name authority unknown (Rollins) O’Kane & Al-Shehbaz: Novon 12: 324. (2002)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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