Physaria newberryi
Physaria obcordata
Newberry twinpod, Newberry's twinpod
Dudley bluffs twinpod, Piceance twinpod
several from base, ascending to erect (arising laterally, unbranched), 0.5–1(–2.5) dm.
several from base, erect to decumbent, (unbranched, fertile stems from among basal leaves), 1.2–1.8 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).
(erect, not rosulate);
blade broadly oblanceolate, 4–8 cm, margins entire or shallowly sinuate-dentate, (apex acute).
blade linear-oblanceolate to oblanceolate, 1–2 cm, margins entire.
(proximal petiolate);
blade narrowly lanceolate, similar to basal in size, (distal with cuneate base), margins entire.
dense (elongated or not in fruit, 2.5–8.5(–10) cm).
loose, (elongated in fruit).
sepals (greenish yellow), lanceolate, 6–8.5 mm, (saccate and cucullate);
petals spatulate to narrowly oblanceolate, 7–10(–12) mm.
sepals (greenish yellow), elliptic, often broadly so, 4.8–7.1 mm;
petals oblanceolate, 6.8–9.8 mm.
(divaricate, straight), 5–11(–15) mm, (rigid, fruits not pendent on arching pedicels).
(widely spreading to recurved), 1–1.5 cm.
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).
(usually pendent), slightly didymous apically, obcordate, slightly inflated, 4–7 × 3–6 mm, (papery, basal sinus absent, apical sinus evident to nearly absent);
valves (retaining seeds after dehiscence), pubescent;
replum broadly obovate to suborbicular, 4–5 mm, as wide as or wider than fruit, margins entire;
ovules usually 4 (rarely 6–8) per ovary;
style (2.5–)3–4(–5) mm.
slightly flattened, (ovate).
plump.
Physaria newberryi
Physaria obcordata
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.)
Of conservation concern.
Physaria obcordata is known from the Thirteenmile Creek Tongue and the Parachute Creek Member of the Green River Formation. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.
(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 |
CalFlora
WildflowerSearch
iNaturalist
USDA Plants Database
