Physaria reediana |
Physaria klausii |
|
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alpine bladderpod, reed's twinpod, Rollins' bladderpod |
Rogers Pass or klaus' or divide bladderpod |
|
Habit | 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). | Perennials; caudex simple; densely pubescent, trichomes (loosely spreading), 3–5-rayed, rays distinct, furcate (with exceptionally long branches). |
Stems | few to several from base, ± erect, (arising laterally, also from within basal leaves), 0.2–0.4 dm. |
simple from base, erect to decumbent, (slender), 0.6–1.5 dm. |
Basal leaves | (erect); blade linear-oblanceolate, 1.2–2.8 cm, (base gradually narrowed to petiole), margins entire. |
blades obovate to deltate, 1.5–3(–4) cm, margins entire or outer one with 1 or 2 broad teeth. |
Cauline leaves | blade linear, similar to basal. |
blade oblanceolate to spatulate, 0.6–1.5 cm, margins entire. |
Racemes | dense, (often subumbellate, not or barely exceeding basal leaves). |
loose. |
Flowers | sepals (pale green-yellow), oblong to elliptic, 4–5 mm, (median pair usually thickened apically, cucullate); petals lingulate, 6–9 mm. |
sepals (green-yellow, often tinged with purple), elliptic, 3–4.6 mm; petals oblanceolate, 6–8 mm (claw expanded). |
Fruiting pedicels | (ascending, curved), 3–5.5 mm. |
(sigmoid), 5–9 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). |
(depressed), broadly obovate, compressed (angustiseptate), 2–4 mm, (apex slightly bilobed to nearly truncate); valves densely pubescent, trichomes strongly ascending, spreading, long, (appearing fuzzy), pubescent inside; ovules 4 per ovary; style 3–4 mm, (pubescent or glabrous). |
Seeds | plump, (oblong). |
flattened. |
Physaria reediana |
Physaria klausii |
|
Phenology | Flowering May–Jul. | Flowering Jul. |
Habitat | Open areas of grasslands on calcareous soils | Open gravel slides, solifluction cross-stripes of shale rubble, barren shale-derived soil |
Elevation | 1200-1900 m (3900-6200 ft) | 1200-1900 m (3900-6200 ft) |
Distribution |
CO; NE; WY
|
MT |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 7, p. 660. | FNA vol. 7, p. 647. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Synonyms | Vesicaria alpina, Alyssum alpinum, Lesquerella alpina, Lesquerella alpina var. laevis, Lesquerella condensata var. laevis | Lesquerella klausii |
Name authority | O’Kane & Al-Shehbaz: Novon 12: 327. (2002) | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 325. (2002) |
Web links |