Flora of North America species comparison

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Physaria argyraea

Physaria hemiphysaria

silver bladderpod

intermountain bladderpod, skyline bladderpod
Habit Perennials; caudex simple or branched (tightly); sparsely to densely pubescent, trichomes (sessile or short-stalked), 4–6-rayed, rays furcate or bifurcate, distinct or slightly fused at base, (sometimes umbonate, tuberculate throughout).
Stems

few to several from base, decumbent, 0.5–1(–2) dm, (rather stout, sparsely pubescent).
Basal leaves

blade elliptic to suborbicular, 1.5–3.5(–5.5) cm, margins entire or shallowly dentate (at base, surfaces densely pubescent, silvery).
Cauline leaves

(petiolate or distal nearly sessile);

blade elliptic to obovate, 0.5–1.5 cm, margins entire.
Racemes

dense, congested, (few-flowered).
Flowers

sepals lanceolate, oblanceolate, or narrowly elliptic, 3.8–5 mm, (median pair thickened apically, cucullate);

petals narrowly lanceolate to linear, 6–10(–13) mm.
Fruiting pedicels

(spreading or recurved, sometimes loosely sigmoid), 2–6.5 mm.
Fruits

(sessile or substipitate), broadly obcordate, obdeltate, or obcompressed, slightly compressed (angustiseptate), 3–5(–7) mm;

valves (not retaining seeds after dehiscence), sparsely pubescent or glabrous, trichomes appressed;

replum as wide as or wider than fruit;

ovules 8–16 per ovary;

style (1.8–)3–6(–7) mm.
Seeds

slightly flattened, (ellipsoid to suborbicular).

Physaria argyraea

Physaria hemiphysaria
Distribution
from FNA
TX; n Mexico
[BONAP county map]
from FNA
UT
[BONAP county map]
Discussion

Subspecies 2 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Styles 3-5 mm; fruiting pedicels 4-6.5 mm; fruit valves pubescent, often sparsely so.
subsp. hemiphysaria
1. Styles 1.8-2.5(-3) mm; fruiting pedicels 2-4(-5.5) mm; fruit valves glabrous or sparsely pubescent.
subsp. lucens
Source FNA vol. 7, p. 627. FNA vol. 7, p. 642.
Parent taxa Brassicaceae > tribe Physarieae > Physaria Brassicaceae > tribe Physarieae > Physaria
Sibling taxa
P. acutifolia, P. alpestris, P. alpina, P. angustifolia, P. arctica, P. arenosa, P. arizonica, P. aurea, P. bellii, P. brassicoides, P. calcicola, P. calderi, P. carinata, P. chambersii, P. cinerea, P. condensata, P. congesta, P. cordiformis, P. curvipes, P. densiflora, P. didymocarpa, P. dornii, P. douglasii, P. eburniflora, P. engelmannii, P. eriocarpa, P. fendleri, P. filiformis, P. floribunda, P. fremontii, P. garrettii, P. geyeri, P. globosa, P. gooddingii, P. gordonii, P. gracilis, P. grahamii, P. hemiphysaria, P. hitchcockii, P. humilis, P. integrifolia, P. intermedia, P. kingii, P. klausii, P. lata, P. lepidota, P. lesicii, P. lindheimeri, P. ludoviciana, P. macrocarpa, P. mcvaughiana, P. montana, P. multiceps, P. navajoensis, P. nelsonii, P. newberryi, P. obcordata, P. obdeltata, P. occidentalis, P. oregona, P. ovalifolia, P. pachyphylla, P. pallida, P. parviflora, P. parvula, P. pendula, P. pinetorum, P. prostrata, P. pruinosa, P. pulvinata, P. purpurea, P. pycnantha, P. rectipes, P. recurvata, P. reediana, P. rollinsii, P. saximontana, P. scrotiformis, P. sessilis, P. spatulata, P. subumbellata, P. tenella, P. thamnophila, P. tumulosa, P. valida, P. vicina, P. vitulifera
P. acutifolia, P. alpestris, P. alpina, P. angustifolia, P. arctica, P. arenosa, P. argyraea, P. arizonica, P. aurea, P. bellii, P. brassicoides, P. calcicola, P. calderi, P. carinata, P. chambersii, P. cinerea, P. condensata, P. congesta, P. cordiformis, P. curvipes, P. densiflora, P. didymocarpa, P. dornii, P. douglasii, P. eburniflora, P. engelmannii, P. eriocarpa, P. fendleri, P. filiformis, P. floribunda, P. fremontii, P. garrettii, P. geyeri, P. globosa, P. gooddingii, P. gordonii, P. gracilis, P. grahamii, P. hitchcockii, P. humilis, P. integrifolia, P. intermedia, P. kingii, P. klausii, P. lata, P. lepidota, P. lesicii, P. lindheimeri, P. ludoviciana, P. macrocarpa, P. mcvaughiana, P. montana, P. multiceps, P. navajoensis, P. nelsonii, P. newberryi, P. obcordata, P. obdeltata, P. occidentalis, P. oregona, P. ovalifolia, P. pachyphylla, P. pallida, P. parviflora, P. parvula, P. pendula, P. pinetorum, P. prostrata, P. pruinosa, P. pulvinata, P. purpurea, P. pycnantha, P. rectipes, P. recurvata, P. reediana, P. rollinsii, P. saximontana, P. scrotiformis, P. sessilis, P. spatulata, P. subumbellata, P. tenella, P. thamnophila, P. tumulosa, P. valida, P. vicina, P. vitulifera
Subordinate taxa
P. argyraea subsp. argyraea
P. hemiphysaria subsp. hemiphysaria, P. hemiphysaria subsp. lucens
Synonyms Vesicaria argyraea, Alyssum argyraeum, Lesquerella argyraea Lesquerella hemiphysaria
Name authority (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 321. (2002) (Maguire) O’Kane & Al-Shehbaz: Novon 12: 323. (2002)
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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