Physaria angustifolia

(Nuttall ex Torrey & A. Gray) O’Kane & Al-Shehbaz

Novon 12: 321. 2002.

Common names: Threadleaf bladderpod
Basionym: Vesicaria angustifolia Nuttall ex Torrey & A. Gray Fl. N. Amer 1: 101. 1838
Synonyms: Lesquerella angustifolia (Nuttall ex Torrey & A. Gray) S. Watson Lesquerella longifolia Cory
Treatment appears in FNA Volume 7. Treatment on page 625. Mentioned on page 619.

Annuals; with a fine taproot; ± densely pubescent, trichomes several-rayed, rays distinct or fused at base, bifurcate, (prominently tuberculate throughout). Stems simple or few to several from base, erect, (sometimes branched), to 4 dm. Basal leaves: blade elliptic to rhombic, 3–8 cm, (base narrowing gradually to petiole), margins entire, repand, coarsely toothed, or pinnatifid. Cauline leaves: (proximal often shortly petiolate, distal sessile); blade linear or narrowly obovate, 1.5–6(–10) cm, margins entire, repand, or shallowly toothed. Racemes usually loose. Fruiting pedicels (usually divaricate, sometimes horizontal, straight or slightly curved), 8–20 mm. Flowers: sepals elliptic or ovate, 4–6 mm, (lateral pair usually subsaccate); petals obovate to obdeltate, 6–10 mm, (apex often emarginate). Fruits not didymous, ± globose, slightly inflated, 4–6 mm; valves (not retaining seeds after dehiscence), glabrous throughout; replum as wide as or wider than fruit; ovules 4 per ovary; style 2–3.5 mm; (stigma expanded). Seeds flattened, (margined). 2n = 10.


Phenology: Flowering Apr(-May).
Habitat: Shallow limestone-derived soils, sometimes spreading to disturbed sites
Elevation: 90-300 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Physaria angustifolia"
Steve L. O’Kane Jr. +
(Nuttall ex Torrey & A. Gray) O’Kane & Al-Shehbaz +
Vesicaria angustifolia +
Threadleaf bladderpod +
Okla. +  and Tex. +
90-300 m +
Shallow limestone-derived soils, sometimes spreading to disturbed sites +
Flowering Apr(-May). +
Lesquerella angustifolia +  and Lesquerella longifolia +
Physaria angustifolia +
Physaria +
species +