Flora of North America species comparison

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Physaria douglasii

Physaria douglasii subsp. douglasii

Columbia bladder-pod, Douglas' bladder-pod
Photo is of parent taxon

Columbia bladder-pod, Douglas' bladder-pod
Habit Perennials; caudex simple; densely pubescent, trichomes (sessile or nearly so), 4–6(–10)-rayed, rays usually furcate near base, rarely bifurcate, (umbonate, tuberculate throughout).
Stems

simple from base, erect, (usually unbranched), to 4.5 dm.

Basal leaves

blade suborbicular to elliptic, 2–9.5(–11.5) cm, margins entire, sinuate, coarsely dentate, or almost lyrate-pinnatifid.

Cauline leaves

similar to basal, blade narrowly linear or, sometimes, orbicular.

loosely arranged, blade narrowly linear.
Racemes

loose (lax).

Flowers

sepals elliptic or ovate, (2–)3.5–7.5 mm, (cucullate);

petals 6–11 mm.

Fruiting pedicels

(recurved, straight, curved, or sigmoid), 6–20 mm.

Fruit(s)

obovoid to subglobose, not inflated (not angustiseptate), 3–6 mm;

valves sparsely pubescent, sometimes glabrous inside, trichomes sessile or stalked;

ovules 4(–8) per ovary;

style (1.6–)3–6 mm.

valves: trichomes sessile.
Seeds

flattened.

2n

= 10, 30.

Physaria douglasii

Physaria douglasii subsp. douglasii
Phenology Flowering Apr–Jun.
Habitat Sandy and gravelly soil, stream banks, base of granitic cliffs, sagebrush and grassy slopes, pine woods
Elevation 100-1400 m (300-4600 ft)
Distribution
from FNA
ID; MT; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; MT; OR; WA; BC
[BONAP county map]
Discussion

Subspecies 2 (2 in the flora).

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

Subspecies douglasii appears to be restricted mainly to river valleys.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Fruit valves: trichomes sessile; cauline leaves loosely arranged, blades narrowly linear; British Columbia, Idaho, Montana, Oregon, Washington.
subsp. douglasii
1. Fruit valves: trichomes stalked; cauline leaves imbricate, blades sometimes orbicular; White Bluffs adjacent to Columbia River of Washington.
subsp. tuplashensis
Source FNA vol. 7, p. 634. FNA vol. 7, p. 635.
Parent taxa Brassicaceae > tribe Physarieae > Physaria Brassicaceae > tribe Physarieae > Physaria > Physaria douglasii
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. 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. douglasii subsp. tuplashensis
Subordinate taxa
P. douglasii subsp. douglasii, P. douglasii subsp. tuplashensis
Synonyms Lesquerella douglasii
Name authority (S. Watson) O’Kane & Al-Shehbaz: Novon 12: 322. (2002) unknown
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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