Physaria newberryi
Physaria grahamii
Newberry twinpod, Newberry's twinpod
Graham's twinpod
several from base, ascending to erect (arising laterally, unbranched), 0.5–1(–2.5) dm.
several from base, decumbent to erect or ascending (unbranched), 1–2.5 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).
(outer ones spreading, inner erect or ascending);
blade ovate, often broadly so, 4–7 cm, margins repand to lyrate-lobed.
blade linear-oblanceolate to oblanceolate, 1–2 cm, margins entire.
similar to basal, blade oblanceolate or narrowly oblong, reduced in size, (base gibbous).
dense (elongated or not in fruit, 2.5–8.5(–10) cm).
loose, (elongated).
sepals (greenish yellow), lanceolate, 6–8.5 mm, (saccate and cucullate);
petals spatulate to narrowly oblanceolate, 7–10(–12) mm.
sepals lanceolate or narrowly oblong, 5.8–7.2 mm;
petals (erect, sometime purplish or drying purple), narrowly oblong to oblanceolate, 7–10 mm, (not or weakly clawed).
(divaricate, straight), 5–11(–15) mm, (rigid, fruits not pendent on arching pedicels).
(ascending to divaricate-ascending, sigmoid to nearly straight), 10–17 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).
didymous, globose or subglobose, inflated, 10–13 mm, (papery, basal and apical sinuses deep);
valves (retaining seeds after dehiscence), pubescent, trichomes ascending, appearing fuzzy;
replum oblong to oblanceolate, as wide as or wider than fruit, apex obtuse;
ovules 4 per ovary;
style (4–)5–7 mm.
slightly flattened, (ovate).
plump, (suborbicular).
Physaria newberryi
Physaria grahamii
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.)
Physaria grahamii is difficult to evaluate due to the paucity of collections. The tentative recognition by N. H. Holmgren (2005b) is followed here.
(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
