Flora of North America species comparison

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Physaria hitchcockii subsp. hitchcockii

Brassicaceae tribe Physarieae
Photo is of parent taxon
Habit Plants forming tufts; caudex not elongated, not elastic. Annuals, biennials, perennials, or subshrubs; eglandular.
Basal leaves

petiole differentiated from blade (sometimes weakly);

blade oblanceolate to obovate.

Cauline leaves

petiolate, sessile, or subsessile;

blade base usually not auriculate (except Paysonia), margins entire, dentate, or sinuate.
Trichomes

usually short-stalked, subsessile, or sessile, sometimes long-stalked, stellate, scalelike, subdendritic, or forked, sometimes mixed with simple ones.
Racemes

ebracteate, often elongated in fruit.
Flowers

actinomorphic;

sepals erect, spreading, ascending, or reflexed, lateral pair seldom saccate basally;

petals white, yellow, lavender, purple, violet, orange, or brown [pink], claw present, often distinct;

filaments unappendaged, not winged;

pollen (3 or) 4–11-colpate.
Fruits

2.6–3.8 mm wide.

silicles or siliques, dehiscent, unsegmented, terete, latiseptate, or angustiseptate;

ovules 2–100 per ovary;

style usually distinct;

stigma entire or strongly 2-lobed.
Seeds

biseriate, uniseriate, or aseriate;

cotyledons accumbent or incumbent.
Anthers

1.4–1.8(–2) mm.

Physaria hitchcockii subsp. hitchcockii

Brassicaceae tribe Physarieae
Phenology Flowering Jun–Jul.
Habitat Gravelly or rocky limestone at or above timberline
Elevation 2300-3500 m (7500-11500 ft)
Distribution
from FNA
NV; UT
[BONAP county map]
North America; Mexico; South America; Asia (ne Russia)
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.)

Genera 7, species ca. 130 (7 genera, 105 species in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 7, p. 643. FNA vol. 7, p. 604.
Parent taxa Brassicaceae > tribe Physarieae > Physaria > Physaria hitchcockii Brassicaceae
Sibling taxa
P. hitchcockii subsp. confluens, P. hitchcockii subsp. rubicundula
Subordinate taxa
Name authority unknown B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1(1,1): 100. (1895)
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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