FNA: Physaria calcicola vs. Physaria argyraea

	Physaria calcicola	Physaria argyraea
	Rocky Mountain bladderpod	silver bladderpod
Habit	Perennials; (compact); caudex branched; densely (silvery) pubescent, trichomes (sessile or short-stalked), 5–8-rayed, rays distinct, furcate or bifurcate, (umbonate, tuberculate and the center less so).
Stems	several from base, erect or outer ones decumbent, (unbranched, stout, usually sparsely leaved), 1–3 dm.
Basal leaves	blade linear, 2–7(–10) cm, margins entire, repand, or shallowly dentate.
Cauline leaves	(sessile); blade (erect), spatulate to linear, (1–)2–3(–4.5) cm, margins entire, sometimes involute, (apex acute or subacute).
Racemes	dense, (exceeding basal leaves).
Flowers	sepals ovate or oblong, (4.5–)5–6(–7) mm, (lateral pair subsaccate, cucullate, median pair thickened, cucullate apically); petals spatulate, 7–9(–11) mm (widened at base, slightly retuse).
Fruiting pedicels	(spreading, sharply sigmoid), 8–15 mm.
Fruits	(sessile or substipitate), ovate to oblong, not compressed at distal margins or apex, 5–9 mm; valves sparsely pubescent, trichomes appressed; ovules 4–8 per ovary; style 3–5 mm.
Seeds	flattened.
2n	= 16, ca. 20.

	Physaria calcicola	Physaria argyraea
Phenology	Flowering May–Jun.
Habitat	Shale bluffs, limestone hillsides, gypseous knolls and ravines, calcareous substrates, grasslands and pinyon-juniper communities
Elevation	1400-2100 m (4600-6900 ft)
Distribution	CO; NM [WildflowerSearch map] [BONAP county map]	TX; n Mexico [BONAP county map]
Discussion	Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.)	Subspecies 2 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 7, p. 629.	FNA vol. 7, p. 627.
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. 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. 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. 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. 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. argyraea subsp. argyraea
Synonyms	Lesquerella calcicola	Vesicaria argyraea, Alyssum argyraeum, Lesquerella argyraea
Name authority	(Rollins) O’Kane & Al-Shehbaz: Novon 12: 322. (2002)	(A. Gray) O’Kane & Al-Shehbaz: Novon 12: 321. (2002)
Web links	WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Physaria argyraea

Rocky Mountain bladderpod

silver bladderpod

Habit

Perennials; (compact); caudex branched; densely (silvery) pubescent, trichomes (sessile or short-stalked), 5–8-rayed, rays distinct, furcate or bifurcate, (umbonate, tuberculate and the center less so).

Stems

several from base, erect or outer ones decumbent, (unbranched, stout, usually sparsely leaved), 1–3 dm.

Basal leaves

blade linear, 2–7(–10) cm, margins entire, repand, or shallowly dentate.

Cauline leaves

(sessile);

blade (erect), spatulate to linear, (1–)2–3(–4.5) cm, margins entire, sometimes involute, (apex acute or subacute).

Racemes

dense, (exceeding basal leaves).

Flowers

sepals ovate or oblong, (4.5–)5–6(–7) mm, (lateral pair subsaccate, cucullate, median pair thickened, cucullate apically);

petals spatulate, 7–9(–11) mm (widened at base, slightly retuse).

Fruiting pedicels

(spreading, sharply sigmoid), 8–15 mm.

Fruits

(sessile or substipitate), ovate to oblong, not compressed at distal margins or apex, 5–9 mm;

valves sparsely pubescent, trichomes appressed;

ovules 4–8 per ovary;

style 3–5 mm.

Seeds

flattened.

= 16, ca. 20.

Physaria calcicola

Physaria argyraea

Phenology

Flowering May–Jun.

Habitat

Shale bluffs, limestone hillsides, gypseous knolls and ravines, calcareous substrates, grasslands and pinyon-juniper communities

Elevation

1400-2100 m (4600-6900 ft)

Distribution

CO; NM

[WildflowerSearch map]

[BONAP county map]

TX; n Mexico

[BONAP county map]

Discussion

Of conservation concern.

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

Subspecies 2 (1 in the flora).

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

Source

FNA vol. 7, p. 629.

FNA vol. 7, p. 627.

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. 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. 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. 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. 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. argyraea subsp. argyraea

Synonyms

Lesquerella calcicola

Vesicaria argyraea, Alyssum argyraeum, Lesquerella argyraea

Name authority

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

(A. Gray) O’Kane & Al-Shehbaz: Novon 12: 321. (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).

Choose a data source: Flora of North America

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Flora of North America species comparison

Physaria calcicola

Physaria argyraea

Physaria calcicola

Physaria argyraea