Physaria gordonii

(A. Gray) O’Kane & Al-Shehbaz

Novon 12: 323. 2002.

Common names: Gordon’s bladderpod
Basionym: Vesicaria gordonii A. Gray Boston J. Nat. Hist. 6: 149. 1850 (as gordoni)
Synonyms: Alyssum gordonii (A. Gray) Kuntze Lesquerella gordonii (A. Gray) S. Watson Lesquerella gordonii var. densifolia Rollins Physaria gordonii subsp. densifolia (Rollins) O’Kane & Al-Shehbaz Physaria gordonii var. densifolia (Rollins) B. L. Turner
Treatment appears in FNA Volume 7. Treatment on page 640. Mentioned on page 619, 620.

Annuals, biennials, or perennials; (short-lived); with a fine taproot; usually densely pubescent, trichomes (sessile or short-stalked), 4–7-rayed, rays distinct and furcate or bifurcate, (nearly smooth to finely tuberculate). Stems several from base, erect to decumbent or prostrate, (unbranched or branched, sometimes densely leaved), 1–3.5 (–4.5) dm. Basal leaves: blade obovate to broadly oblong, 1.5–5 (–8) cm, margins lyrate-pinnatifid, dentate, or entire. Cauline leaves: (proximal sometimes petiolate, distal sessile); blade linear to oblanceolate, often falcate, 1–4 (–7) cm, (proximal with base sometimes cuneate), margins entire, repand, or shallowly dentate. Racemes dense. Fruiting pedicels (divaricate-ascending, sigmoid or, sometimes, nearly straight), 5–15 (–25) mm. Flowers: sepals elliptic or oblong, 3–6.5 mm, (lateral pair subsaccate, median pair thickened apically, cucullate); petals (widely spreading at anthesis, yellow to orange, claw sometimes whitish), cuneate, obdeltate, or obovate, (tapering to claw), 5–8 (–10) mm, (claw often widened at base). Fruits (shortly stipitate), subglobose, not or slightly compressed, (3–) 4–8 mm; valves (not retaining seeds after dehiscence), glabrous throughout; replum as wide as or wider than fruit; ovules (8–) 12–20 (–26) per ovary; style (1.5–) 2–4 (–5) mm. Seeds flattened. 2n = 12, 32.


Phenology: Flowering Feb–Jul.
Habitat: Sandy or light soils, rocky plains, caprock ledges, gravelly brushland, sandy desert washes, stream bottoms, pastures, roadsides, abandoned fields
Elevation: 150-1700 m

Distribution

V7 1062-distribution-map.gif

Ariz., Kans., N.Mex., Okla., Tex., Va., Mexico (Chihuahua), Mexico (Sonora)

Discussion

Physaria gordonii was reported from Virginia in 1987 by Robert Wright from a Hampton Shale roadcut along the Blue Ridge Parkway, where it was probably a short-lived waif.

Subspecies densifolia, of Lincoln County, New Mexico, of which there is now more material than Rollins had available in 1993, appears to represent a suite of environmentally determined, variable, and intergrading characteristics that does not merit taxonomic recognition.

Selected References

None.

Lower Taxa

None.

"not" is not a number. "elongated" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Physaria gordonii"
ovate +  and narrowly oblong +
Steve L. O’Kane Jr. +
(A. Gray) O’Kane & Al-Shehbaz +
Vesicaria gordonii +
appendaged +  and unappendaged +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
repand +  and dentate +
falcate;linear;oblanceolate +
much smaller +  and reduced +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
sessile +  and petiolate +
well-developed +
distinct +
not +  and differentiated +
Gordon’s bladderpod +
emarginate +  and entire +
Ariz. +, Kans. +, N.Mex. +, Okla. +, Tex. +, Va. +, Mexico (Chihuahua) +  and Mexico (Sonora) +
150-1700 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
actinomorphic +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
obovate +, obdeltate +  and cuneate +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2-valved +  and capsular +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
compressed +  and subglobose +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
latiseptate +, stipitate +, , +, subsessile +  and sessile +
angustiseptate +, terete +, not +, inflated +, not torulose +, obovoid +, ovoid +, ovate +, obpyriform +, oblong +, obdeltate +, obcordate +, lanceolate +, elliptic +, ellipsoid +, suborbicular +, orbicular +, subglobose +  and globose +
latiseptate +  and unsegmented +
angustiseptate +  and terete +
Sandy or light soils, rocky plains, caprock ledges, gravelly brushland, sandy desert washes, stream bottoms, pastures, roadsides, abandoned fields +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
entire +, dentate +  and lyrate-pinnatifid +
dentate;repand;dentate;repand;entire +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
purple +, white +, orange +  and yellow +
rudimentary +
obdeltate +, oblanceolate +, ovate +, obovate +  and spatulate +
Flowering Feb–Jul. +
trinucleate +  and 3(-11)-colpate +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
ascending +, spreading +, horizontal +  and erect +
slender +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
distinct +
bifurcate +  and furcate +
rounded +  and narrowly oblong +
not +  and mucilaginous +
margined +  and winged +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
flattened +
persistent +  and caducous +
distinct +
spreading +  and erect +
oblong +  and elliptic +
0.3 cm3 mm <br />0.003 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
perforate +  and complete +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
tetradynamous +
branched +  and unbranched +
procumbent +  and decumbent +
prostrate +  and decumbent +
2-lobed +  and entire +
subsessile +, sessile +  and petiolate +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
persistent +
distinct +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Alyssum gordonii +, Lesquerella gordonii +, Lesquerella gordonii var. densifolia +, Physaria gordonii subsp. densifolia +  and Physaria gordonii var. densifolia +
Physaria gordonii +
Physaria +
species +
simple +, stalked +, subsessile +  and sessile +
stellate-scalelike +
coiled +, 1-7-veined +  and veined +
anastomosing +
perennial +, biennial +  and annual +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +
glabrous +  and pubescent +
15 +, 12 +, 10 +, 9 +, 8 +, 7 +, 6 +, 5 +  and 4 +