The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

frosty bladderpod, Piceance bladderpod, Picenace bladderpod

curved bladderpod

Habit Perennials; caudex simple or branched; densely (silvery) pubescent, trichomes (irregularly radiate), 6–8-rayed, rays furcate or bifurcate, fused at base. 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

several from base, prostrate to decumbent, (usually unbranched, rarely branched distally), 1–3 dm.

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

Basal leaves

(tufted);

blade broadly obovate, 1–2 cm, margins entire or with 1 or 2 broad teeth, (apex rounded to obtuse).

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

Cauline leaves

blade oblanceolate to nearly oblong, similar to basal, (base cuneate), margins entire.

blade spatulate, similar to basal, margins entire.

Racemes

(secund), loose, (elongated in fruit).

loose, (elongated, exceeding basal leaves).

Flowers

sepals (yellowish), elliptic to lanceolate, (2–)3–4 mm;

petals spatulate, (3.9–)5–7 mm.

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

petals narrowly oblanceolate, 4–6 mm.

Fruiting pedicels

(recurved), 6–8(–12) mm.

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

Fruits

(usually pendent), elliptic to subglobose, usually slightly compressed (latiseptate), 3–4 mm;

valves densely pubescent, sometimes with scattered trichomes inside;

ovules 4 per ovary;

style ca. 3 mm.

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

somewhat flattened.

plump.

Physaria parviflora

Physaria curvipes

Phenology Flowering Jun–Jul. Flowering Jun–Jul.
Habitat Shale of steep slopes, rock crevices, ledges, canyon sides, shale-marlstone Limestone outcrops
Elevation 2100-2700 m (6900-8900 ft) 1600-2800 m (5200-9200 ft)
Distribution
from FNA
CO
[WildflowerSearch map]
[BONAP county map]
from FNA
MT; WY
[BONAP county map]
Discussion

Of conservation concern.

Physaria parviflora is known from the Parachute Creek Member of the Green River Formation, Rio Blanco County.

(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. 657. 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. 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. 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 parviflora Lesquerella curvipes
Name authority (Rollins) O’Kane & Al-Shehbaz: Novon 12: 326. (2002) (A. Nelson) Grady & O’Kane: Novon 17: 183. (2007)
Web links