Flora of North America species comparison

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Physaria carinata

Idaho bladderpod

Habit

Perennials; caudex simple, (often enlarged by persistent leaf bases); densely pubescent, trichomes (sessile or short-stalked), rays furcate or bifurcate, (nearly smooth to finely tuberculate).

Stems

simple from base, decumbent, (occasionally few-branched), 0.5–1.5(–2) dm.

Basal leaves

blade elliptic to broadly obovate, triangular, rhombic, or round, 1.5–3(–4) cm, margins often sinuate or shallowly lobed.

Cauline leaves

(sessile or shortly petiolate);

blade elliptic to oblanceolate to obovate, 0.5–1.5 cm, (base narrowed to petiole), margins entire.

Racemes

compact to loose.

Flowers

sepals oblong to broadly elliptic, 4–7.5 mm, (lateral pair saccate or not);

petals spatulate, 7.5–10 mm.

Fruiting pedicels

(ascending or divaricate-spreading, straight to loosely sigmoid or curved), 4–10 mm.

Fruits

(sessile or substipitate), elliptic, suborbicular, or oblong, strongly compressed (angustiseptate), 5–9 mm, (rounded to sharply keeled on 1 side, edges ± keeled);

valves: (margins covering replum edges or not), usually pubescent throughout or, rarely, glabrous inside;

ovules (4–)8–14(–16) per ovary;

style 2–4.5(–5) mm.

Seeds

slightly flattened.

Physaria carinata

Distribution

ID; MT; WY

[BONAP county map]

Discussion

Subspecies 3 (3 in the flora).

Differences in fruit morphology become blurred and the three subspecies are often indistinguishable where their ranges meet near the intersection of Idaho, Montana, and Wyoming.

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

Key

1. Fruits elliptic, not keeled, valve margins (thin, rounded), not covering replum edges.	subsp. paysonii
1. Fruits elliptic, suborbicular, or broadly oblong, keeled on one side, valve margins covering replum edges	→ 2
2. Fruits elliptic, bases narrow-rounded to acute, apices ± acute.	subsp. carinata
2. Fruits suborbicular to elliptic or broadly oblong, bases and apices rounded.	subsp. pulchella

Source

FNA vol. 7, p. 629.

Parent taxa

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. 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

Subordinate taxa

P. carinata subsp. carinata, P. carinata subsp. paysonii, P. carinata subsp. pulchella

Synonyms

Lesquerella carinata

Name authority

(Rollins) O’Kane & Al-Shehbaz: Novon 12: 322. (2002)

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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