Paysonia grandiflora

(Hooker) O’Kane & Al-Shehbaz

Novon 12: 381. 2002.

Common names: Bigflower bladderpod
Basionym: Vesicaria grandiflora Hooker Bot. Mag. 63: plate 3464. 1836
Synonyms: Alyssum grandiflorum (Hooker) Kuntze Lesquerella grandiflora (Hooker) S. Watson Vesicaria brevistyla Torrey & A. Gray Vesicaria grandiflora var. pinnatifida A. Gray
Treatment appears in FNA Volume 7. Treatment on page 613. Mentioned on page 612.

Annuals; mostly densely pubescent, sometimes glabrous, trichomes usually 5-parted. Stems erect to decumbent at base, (unbranched or branched), 2–7 dm, (pubescent proximally, trichomes branched). Basal leaves: blade (oblanceolate), 5–15 cm, margins irregularly dentate to 2-pinnatifid, (apex acute to obtuse), surfaces densely pubescent (trichomes erect, 5-parted). Cauline leaves (usually overlapping); blade oblong to lanceolate, 1–4 cm, base (proximal) often narrowed and cuneate, (distal) auriculate, margins dentate to toothed, (apex acute to obtuse, densely pubescent on midrib, trichomes branched). Fruiting pedicels ascending to divaricate, straight to slightly curved upward, 10–20 mm, densely pubescent. Flowers: sepals 5–7 × 2–3 mm, densely pubescent; petals yellow, 8–12 × 6–9 mm, (abruptly narrowed to a short claw), apex rounded to slightly emarginate; filaments dilated basally, (3–4 mm, anthers sagittate, 2.5–3 mm, glandular tissue projecting, subtending paired stamens, nearly surrounding bases of single stamens). Fruits sessile or subsessile, globose or subglobose (slightly longer than broad), 4–6 × 4–5 mm; valves glabrous; replum not flattened; septum complete, (translucent); ovules (8–) 16–28 (–40) per ovary, (attached in proximal 1/2); style 1–1.5 mm, glabrous; stigmas expanded. Seeds orbicular, 2.5–3 mm. 2n = 18.


Phenology: Flowering Mar–May.
Habitat: Dry areas, roadsides, meadows, rocky slopes, scrubland, with sandy, loose, well-drained soils

Discussion

Paysonia grandiflora probably grows also in northeastern Mexico.

Selected References

None.

Lower Taxa

None.

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

... more about "Paysonia grandiflora"
sagittate +  and oblong +
rounded +  and slightly emarginate +
Steve L. O’Kane Jr. +
(Hooker) O’Kane & Al-Shehbaz +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
auriculate +, cuneate +  and narrowed +
Vesicaria grandiflora +
appendaged +  and unappendaged +
lobed +  and dentate +
oblong;lanceolate +
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 +
well-developed +
distinct +
differentiated +
Bigflower bladderpod +
emarginate +  and entire +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
tetradynamous +
spreading +, ascending +  and suberect +
subsessile +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
subglobose +  and globose +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
latiseptate +, sessile +  and subsessile +
angustiseptate +, flattened +, terete +, obovoid +, cordate +, elliptic +, orbicular +, suborbicular +, subpyriform +, subglobose +  and globose +
latiseptate +  and unsegmented +
angustiseptate +  and terete +
Dry areas, roadsides, meadows, rocky slopes, scrubland, with sandy, loose, well-drained soils +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
straight +  and slightly curved +
dentate;toothed +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
8mm;12mm +
rudimentary +
obovate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering Mar–May. +
trinucleate +  and 3(-11)-colpate +
recurved +  and ascending +
slender +
not flattened +
sub-biseriate +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
orbicular +
0.25 cm2.5 mm <br />0.0025 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
persistent +  and caducous +
distinct +
reflexed +, ascending +, spreading +  and erect +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
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 +
erect +  and decumbent +
entire +  and capitate +
2-lobed +  and entire +
expanded +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Alyssum grandiflorum +, Lesquerella grandiflora +, Vesicaria brevistyla +  and Vesicaria grandiflora var. pinnatifida +
Paysonia grandiflora +
Paysonia +
species +
subdendritic +  and short-stalked +
anastomosing +
glabrous +  and pubescent +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +
glabrous +  and pubescent +
9 +, 8 +  and 7 +