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Calder's bladderpod

King bladderpod, King's bladder-pod

Habit Perennials; caudex simple or branched; densely pubescent throughout, trichomes (sessile or subsessile), rays distinct or slightly fused at base, furcate or bifurcate, (strongly umbonate, tuberculate, tubercles often relatively larger, fewer over center). Perennials; caudex usually simple, sometimes branched, (not thickened); usually densely pubescent, trichomes (sessile or short-stalked), 3–7-rayed, rays distinct or slightly fused at base, typically furcate near base, bifurcate or 3-partite, (not to slightly umbonate, smooth or moderately to strongly tuberculate).
Stems

simple or few to several from base, usually erect to spreading, sometimes prostrate, 0.5–2 dm.

few to several from base, prostrate to decumbent or erect, 0.5–2(–4) dm.

Basal leaves

blade oblanceolate, 2–3 cm, margins entire.

blade suborbicular to narrowly or broadly oblanceolate to broadly elliptic or rhombic, (1.2–)2–6(–8) cm, (base usually abruptly narrowed to petiole), margins entire, sinuate, or lobed.

Cauline leaves

(sessile or proximal shortly petiolate);

blade narrowly oblanceolate, 0.5–1.5 cm, margins entire.

(proximal petiolate, distal sessile);

blade obovate or elliptic to spatulate, 0.5–2 cm, margins entire.

Racemes

loose.

(usually not secund), dense, (sometimes elongated in fruit).

Flowers

sepals ovate to elliptic, (3–)4–5(–6) mm, (median pair often thickened apically, cucullate);

petals obovate, (6–)7–10 mm (nearly as wide, abruptly narrowed to claw, ca. 1 mm wide).

sepals lanceolate, 4–6(–7) mm;

petals (yellow, cream-yellow, cream-white, or white), obovate to oblanceolate, 6–13 mm, (claw weakly differentiated from blade).

Fruiting pedicels

(erect to divaricate or ascending, sometimes curved), (5–)10–20(–40) mm, (stout).

(erect to divaricate-ascending or recurved, erect in distal 1/3, usually sigmoid, sometimes straight or slightly curved), 4.5–10(–15) mm.

Fruits

subglobose to ellipsoid, compressed (usually angustiseptate), to 8 mm; (valves not retaining seeds after dehiscence);

replum as wide as or wider than fruit;

ovules 10–14 per ovary;

style 1–2 mm.

(sessile or substipitate), subglobose, obovoid, or ellipsoid, compressed (sometimes slightly angustiseptate), 3–9 mm, (rigid, apex truncate, retuse, or rounded-acute);

valves sparsely or densely pubescent, sometimes sparsely pubescent inside; (septum sometimes fenestrate, perforate, or obsolete);

ovules 4–16 per ovary;

style 1–9 mm.

Seeds

plump.

flattened (sometimes slightly).

2n

= 20.

Physaria calderi

Physaria kingii

Phenology Flowering Jun–Aug.
Habitat Dry rocky summits, limestone flats and slopes, alpine knolls
Elevation 600-1500 m (2000-4900 ft)
Distribution
from FNA
AK; NT; YT
[BONAP county map]
from FNA
AZ; CA; ID; NV; OR; UT; nw Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

Physaria calderi is known from the Ogilvie and Richardson mountains.

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

Subspecies 7 (7 in the flora).

The Physaria kingii complex is in need of further study. It is widespread in the western United States, mostly in montane environments. This treatment recognizes a highly variable species with generally well-marked, geographically coherent subspecies. Hybridization may be involved in some of the subspecies, especially in subsp. kaibabensis, where molecular data indicate intra-individual genetic variation (pers. obs.).

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

Key
1. Fruits slightly wider than long, apices truncate or retuse, valves pubescent inside
→ 2
1. Fruits as wide as or longer than wide, apices rounded-acute, valves glabrous inside
→ 3
2. Basal leaf blades: margins ± entire (sometimes slightly lobed or widened at base); California, Idaho, Nevada, Oregon.
subsp. kingii
2. Basal leaf blades: margins sinuate or lobed, or, sometimes, lyrate; Wallowa and Elkhorn mountains, Oregon.
subsp. diversifolia
3. Fruiting pedicels recurved.
subsp. cobrensis
3. Fruiting pedicels not recurved (divaricate-ascending or ± erect, straight or sigmoid)
→ 4
4. Petals cream-white or white; styles 1-2 mm; Kaibab Plateau, n Arizona.
subsp. kaibabensis
4. Petals yellow (occasionally cream-yellow or cream-white on Kaibab Plateau, Arizona); styles (4-)4.5-9 mm; n Arizona (including Kaibab Plateau), California, Nevada, Utah
→ 5
5. Plants erect; styles 6-9 mm; ovules 4-8 per ovary; se California.
subsp. bernardina
5. Plants ascending, erect, decumbent, or prostrate; styles (4-)4.5-7 mm; ovules (6-)8-16 per ovary; n Arizona, e California, s Nevada, Utah
→ 6
6. Plants prostrate, decumbent, or erect; racemes not or somewhat secund in fruit; ovules usually 8-16 per ovary; n Arizona, e California, s Nevada, Utah.
subsp. latifolia
6. Plants ascending; racemes secund in fruit; ovules (6-)8-12 per ovary; n Utah.
subsp. utahensis
Source FNA vol. 7, p. 629. FNA vol. 7, p. 645.
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. 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. hemiphysaria, P. hitchcockii, P. humilis, P. integrifolia, P. intermedia, 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. kingii subsp. bernardina, P. kingii subsp. cobrensis, P. kingii subsp. diversifolia, P. kingii subsp. kaibabensis, P. kingii subsp. kingii, P. kingii subsp. latifolia, P. kingii subsp. utahensis
Synonyms Lesquerella calderi, Lesquerella arctica subsp. calderi Vesicaria kingii, Lesquerella kingii
Name authority (G. A. Mulligan & A. E. Porsild) O’Kane & Al-Shehbaz: Novon 12: 322. (2002) (S. Watson) O’Kane & Al-Shehbaz: Novon 12: 324. (2002)
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