Physaria gracilis
Physaria newberryi
spreading bladderpod
Newberry twinpod, Newberry's twinpod
simple to several from base, erect, often outer decumbent, (unbranched or branched distally), 1–7 dm.
several from base, ascending to erect (arising laterally, unbranched), 0.5–1(–2.5) dm.
blade oblanceolate to elliptic, 1.5–8(–11.5) cm, margins lyrate-pinnatifid to dentate or repand, (abaxial surface densely pubescent, adaxial sparsely pubescent).
(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).
(proximal petiolate, distal sessile);
blade oblanceolate to oblong, 1–7 cm, margins dentate to repand.
blade linear-oblanceolate to oblanceolate, 1–2 cm, margins entire.
loose, (elongated).
dense (elongated or not in fruit, 2.5–8.5(–10) cm).
sepals elliptic or broadly ovate, 3–6.5(–8) mm, (median pair slightly thickened apically, cucullate);
petals (yellow to orange), broadly obovate, 6–11 mm, (narrowing gradually to short claw).
sepals (greenish yellow), lanceolate, 6–8.5 mm, (saccate and cucullate);
petals spatulate to narrowly oblanceolate, 7–10(–12) mm.
(usually divaricate-spreading, sometimes horizontal or shallowly recurved, straight or slightly curved), (7–)10–20(–25) mm, (slender or stout).
(divaricate, straight), 5–11(–15) mm, (rigid, fruits not pendent on arching pedicels).
(stipitate or subsessile, gynophore 1–2 mm), globose, subglobose, obpyriform, or obovoid, not or slightly inflated, 3–9 mm;
valves (not retaining seeds after dehiscence), glabrous throughout or sparsely pubescent inside;
replum as wide as or wider than fruit;
ovules 8–20(–28) per ovary;
style 2–4.5 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).
slightly flattened.
slightly flattened, (ovate).
Physaria gracilis
Physaria newberryi
Subspecies 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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.)
1. Stems to 7 dm; cauline leaves: blade margins usually deeply dentate, rarely repand; fruits ± sessile, globose or subglobose, 3-6 mm, bases rounded. | subsp. gracilis |
1. Stems usually less than 3 dm; cauline leaves: blade margins frequently repand, occasionally dentate; fruits stipitate (gynophore slender), obpyriform to narrowly obovoid, (5-)6-9 mm, bases truncate. | subsp. nuttallii |
1. Styles less than 4 mm, shorter than fruit sinuses. | subsp. newberryi |
1. Styles 5-9 mm, longer than fruit sinuses. | subsp. yesicola |
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