Physaria newberryi
Physaria hitchcockii
Newberry twinpod, Newberry's twinpod
Hitchcock's bladderpod
several from base, ascending to erect (arising laterally, unbranched), 0.5–1(–2.5) dm.
few to several from base, prostrate to erect or spreading, 0.05–0.5(–1.2) dm.
(ascending to erect, petiole slender);
blade oblanceolate to obovate, 3–8 cm, (base tapering to petiole), margins incised or dentate with broad teeth, (apex acute to obtuse).
(petiole and blade differentiated or not);
blade spatulate to elliptic or linear or narrowly oblanceolate, 0.5–1.5(–2.5) cm, margins entire.
blade linear-oblanceolate to oblanceolate, 1–2 cm, margins entire.
similar to basal, smaller.
dense (elongated or not in fruit, 2.5–8.5(–10) cm).
dense.
sepals (greenish yellow), lanceolate, 6–8.5 mm, (saccate and cucullate);
petals spatulate to narrowly oblanceolate, 7–10(–12) mm.
sepals narrowly lanceolate to lanceolate, 2.8–6 mm;
petals (pale to deep yellow), narrowly lanceolate to oblanceolate, 5–9 mm, (claw undifferentiated from blade).
(divaricate, straight), 5–11(–15) mm, (rigid, fruits not pendent on arching pedicels).
(ascending, straight or slightly curved), 2–6 mm.
didymous, sides curved and angular, highly inflated, 6–16 × 8–12 mm, (papery, apical sinus broad and concave);
valves (retaining seeds after dehiscence, distinctly 2-keeled on side away from replum), pubescent, trichomes appressed;
replum linear to linear-lanceolate, as wide as or wider than fruit, apex acute;
ovules 4–8 per ovary;
style 2–9 mm, (usually not exceeding sinus).
(sessile or substipitate), globose or subglobose to obovoid, not or slightly inflated, 3–6 mm, (firm, apex acute);
valves (reddish in age, not retaining seeds after dehiscence), glabrous throughout;
replum as wide as or wider than fruit;
ovules 4–8 per ovary;
style 1.7–6 mm.
slightly flattened, (ovate).
flattened.
Physaria newberryi
Physaria hitchcockii
Subspecies 2 (2 in the flora).
Physaria newberryi, with its unusual fruits, can be confused with 15. P. chambersii. In P. chambersii, the sides of the fruit are flat, the style always exceeds the top, or shoulders, of the fruit, and shoulders form an angle that does not curve in toward the style. In P. newberryi, the sides of the fruit are concave, the styles are shorter than shoulders of the silicle (except in subsp. yesicola), and shoulders of the silicle form a curved, inward arching crown on the fruit.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies 3 (3 in the flora).
The taxonomic treatment of Physaria hitchcockii has varied widely over the years. Molecular study (pers. obs.) has shown no direct relationship to P. tumulosa; morphologically, though, P. navajoensis and P. tumulosa appear closely related. Infraspecific taxonomy is based on the presence of a discernable petiole and whether or not the caudex is elastically elongated. The subspecies recognized here are usually geographically coherent, except that collections from the Table Cliff Plateau are more similar to subsp. hitchcockii, disjunct in Nevada, than they are to the very nearly sympatric subsp. rubicundula.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Styles less than 4 mm, shorter than fruit sinuses. | subsp. newberryi |
1. Styles 5-9 mm, longer than fruit sinuses. | subsp. yesicola |
1. Caudices elongated and elastic; basal leaves: petiole not differentiated from blade, blades linear-oblanceolate; Aquarius, Markagunt, and Paunsaugunt plateaus, Utah (limited to the pink member of the limestone Wasatch (Claron) Formation). | subsp. rubicundula |
1. Caudices elongated or not, elastic or not; basal leaves: petiole differentiated (sometimes weakly) from blade, blades oblanceolate to obovate; Nevada, Utah | → 2 |
2. Plants forming tufts; caudices not elongated, not elastic; fruits 2.6-3.8 mm wide; Table Cliff Plateau, Utah (limited to the white member of the limestone Wasatch (Claron) Formation) and limestones of the Sheep Range and Spring Mountains, Nevada. | subsp. hitchcockii |
2. Plants forming soft mats; caudices elongated, elastic (creeping); fruits 1.7-3 mm wide; Grant, Quinn Canyon, and Schell Creek ranges, Nevada. | subsp. confluens |
CalFlora
WildflowerSearch
iNaturalist
USDA Plants Database
