Physaria reediana

O’Kane & Al-Shehbaz

Novon 12: 327. 2002.

Common names: Alpine or Rollins’s bladderpod
Basionym: Vesicaria alpina Nuttall in J. Torrey and A. Gray, Fl. N. Amer. 1: 102. 1838,
Synonyms: Alyssum alpinum (Nuttall) Kuntze Lesquerella alpina (Nuttall) S. Watson Lesquerella alpina var. laevis (Payson) C. L. Hitchcock Lesquerella condensata var. laevis Payson
Treatment appears in FNA Volume 7. Treatment on page 660. Mentioned on page 621.

Perennials; caudex simple or branched, (covered with persistent leaf bases, loosely cespitose); densely pubescent, trichomes (appressed to ascending, plant appearing shaggy, always appressed on fruits), 4- or 5-rayed, rays furcate or bifurcate, (tuberculate throughout). Stems few to several from base, ± erect, (arising laterally, also from within basal leaves), 0.2–0.4 dm. Basal leaves (erect); blade linear-oblanceolate, 1.2–2.8 cm, (base gradually narrowed to petiole), margins entire. Cauline leaves: blade linear, similar to basal. Racemes dense, (often subumbellate, not or barely exceeding basal leaves). Fruiting pedicels (ascending, curved), 3–5.5 mm. Flowers: sepals (pale green-yellow), oblong to elliptic, 4–5 mm, (median pair usually thickened apically, cucullate); petals lingulate, 6–9 mm. Fruits lanceolate in outline, compressed (latiseptate) on margins and at apex, 4–5 mm; valves pubescent, trichomes closely appressed; ovules 8–12 per ovary; style 3.5–4.5 mm (equaling or exceeding length of fruit, curved proximal to stigma). Seeds plump, (oblong).

Phenology: Flowering May–Jul.
Habitat: Open areas of grasslands on calcareous soils
Elevation: 1200-1900 m


Selected References


Lower Taxa

... more about "Physaria reediana"
Steve L. O’Kane Jr. +
O’Kane & Al-Shehbaz +
Vesicaria alpina +
Alpine or Rollins’s bladderpod +
Colo. +, Nebr. +  and Wyo. +
1200-1900 m +
Open areas of grasslands on calcareous soils +
Flowering May–Jul. +
Alyssum alpinum +, Lesquerella alpina +, Lesquerella alpina var. laevis +  and Lesquerella condensata var. laevis +
Physaria reediana +
Physaria +
species +