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FNA | Family List | FNA Vol. 7 | Brassicaceae | Physaria

44. Physaria kingii (S. Watson) O’Kane & Al-Shehbaz, Novon. 12: 324. 2002.

King bladderpod

Vesicaria kingii S. Watson, Proc. Amer. Acad. Arts 20: 353. 1885; Lesquerella kingii (S. Watson) S. Watson

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 few to several from base, prostrate to decumbent or erect, 0.5-2(-4) dm. Basal leaves: 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: (proximal petiolate, distal sessile); blade obovate or elliptic to spatulate, 0.5-2 cm, margins entire. Racemes (usually not secund), dense, (sometimes elongated in fruit). Fruiting pedicels (erect to divaricate-ascending or recurved, erect in distal 1/3, usually sigmoid, sometimes straight or slightly curved), 4.5-10(-15) mm. Flowers: 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). Fruits (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 flattened (sometimes slightly).

Subspecies 7 (7 in the flora): w United States, nw Mexico.

1 Fruits slightly wider than long, apices truncate or retuse, valves pubescent inside   (2)
+ Fruits as wide as or longer than wide, apices rounded-acute, valves glabrous inside   (3)
2 (1) Basal leaf blades: margins ± entire (sometimes slightly lobed or widened at base); California, Idaho, Nevada, Oregon.   44a Physaria kingii subsp. kingii
+ Basal leaf blades: margins sinuate or lobed, or, sometimes, lyrate; Wallowa and Elkhorn mountains, Oregon.   44d Physaria kingii subsp. diversifolia
3 (1) Fruiting pedicels recurved.   44c Physaria kingii subsp. cobrensis
+ Fruiting pedicels not recurved (divaricate-ascending or ± erect, straight or sigmoid)   (4)
4 (3) Petals cream-white or white; styles 1-2 mm; Kaibab Plateau, n Arizona.   44e Physaria kingii subsp. kaibabensis
+ 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 (4) Plants erect; styles 6-9 mm; ovules 4-8 per ovary; se California.   44b Physaria kingii subsp. bernardina
+ 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 (5) 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.   44f Physaria kingii subsp. latifolia
+ Plants ascending; racemes secund in fruit; ovules (6-)8-12 per ovary; n Utah.   44g Physaria kingii subsp. utahensis

Lower Taxa


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