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Rogers Pass or klaus' or divide bladderpod

curved bladderpod

Habit Perennials; caudex simple; densely pubescent, trichomes (loosely spreading), 3–5-rayed, rays distinct, furcate (with exceptionally long branches). Perennials; caudex simple; densely pubescent, trichomes (often wavy, closely appressed to blade surfaces), 4–5-rayed, rays furcate or bifurcate, slightly fused near base, (tuberculate throughout).
Stems

simple from base, erect to decumbent, (slender), 0.6–1.5 dm.

simple from base, loosely spreading, usually decumbent, (well exserted from basal leaves, often reddish purple), 0.8–2.4 dm.

Basal leaves

blades obovate to deltate, 1.5–3(–4) cm, margins entire or outer one with 1 or 2 broad teeth.

blade (erect), spatulate to nearly rhombic, 2.5–5(–9) cm, (base gradually narrowed to petiole), margins entire, (flat).

Cauline leaves

blade oblanceolate to spatulate, 0.6–1.5 cm, margins entire.

blade spatulate, similar to basal, margins entire.

Racemes

loose.

loose, (elongated, exceeding basal leaves).

Flowers

sepals (green-yellow, often tinged with purple), elliptic, 3–4.6 mm;

petals oblanceolate, 6–8 mm (claw expanded).

sepals (pale yellow), lingulate to spatulate, 3.5–4 mm;

petals narrowly oblanceolate, 4–6 mm.

Fruiting pedicels

(sigmoid), 5–9 mm.

(ascending, curved or sigmoid), 4–7 mm.

Fruits

(depressed), broadly obovate, compressed (angustiseptate), 2–4 mm, (apex slightly bilobed to nearly truncate);

valves densely pubescent, trichomes strongly ascending, spreading, long, (appearing fuzzy), pubescent inside;

ovules 4 per ovary;

style 3–4 mm, (pubescent or glabrous).

ellipsoid, not inflated (strongly latiseptate, more so at apex), (3–)5–9 mm;

valves pubescent, trichomes closely appressed to surface;

ovules 4–8 per ovary;

style 2.5–4.5 mm (never more than 1/2 fruit length).

Seeds

flattened.

plump.

Physaria klausii

Physaria curvipes

Phenology Flowering Jul. Flowering Jun–Jul.
Habitat Open gravel slides, solifluction cross-stripes of shale rubble, barren shale-derived soil Limestone outcrops
Elevation 1200-1900 m (3900-6200 ft) 1600-2800 m (5200-9200 ft)
Distribution
from FNA
MT
[BONAP county map]
from FNA
MT; WY
[BONAP county map]
Discussion

Of conservation concern.

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

Physaria curvipes is known from the Big Horn Mountains.

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

Source FNA vol. 7, p. 647. FNA vol. 7, p. 632.
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. 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. hemiphysaria, P. hitchcockii, P. humilis, P. integrifolia, P. intermedia, P. kingii, 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. 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
Synonyms Lesquerella klausii Lesquerella curvipes
Name authority (Rollins) O’Kane & Al-Shehbaz: Novon 12: 325. (2002) (A. Nelson) Grady & O’Kane: Novon 17: 183. (2007)
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