Physaria dornii |
Physaria calcicola |
|
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Dorn's twinpod, tunp range twinpod |
Rocky Mountain bladderpod |
|
Habit | Perennials; (compact); caudex simple, (stout); densely (silvery) pubescent throughout (except style), trichomes several-rayed, rays furcate, fused at base, (umbonate, tuberculate throughout). | Perennials; (compact); caudex branched; densely (silvery) pubescent, trichomes (sessile or short-stalked), 5–8-rayed, rays distinct, furcate or bifurcate, (umbonate, tuberculate and the center less so). |
Stems | simple from base, erect, (arising from a condensed rosette), to 1 dm. |
several from base, erect or outer ones decumbent, (unbranched, stout, usually sparsely leaved), 1–3 dm. |
Basal leaves | (ascending or erect); blade elliptic to oblanceolate to obovate, (usually curled from middle to apex), (1.5–)5–7 cm (width 12–20 mm), margins entire. |
blade linear, 2–7(–10) cm, margins entire, repand, or shallowly dentate. |
Cauline leaves | (1–5); blade oblanceolate, 1–2.5 cm, margins entire. |
(sessile); blade (erect), spatulate to linear, (1–)2–3(–4.5) cm, margins entire, sometimes involute, (apex acute or subacute). |
Racemes | compact (or elongated in fruit, to 1 dm, barely exceeding leaves). |
dense, (exceeding basal leaves). |
Flowers | sepals (erect), oblong to linear or spatulate, 5.5–7 mm; petals spatulate, 10–14 mm, (claw undifferentiated from blade). |
sepals ovate or oblong, (4.5–)5–6(–7) mm, (lateral pair subsaccate, cucullate, median pair thickened, cucullate apically); petals spatulate, 7–9(–11) mm (widened at base, slightly retuse). |
Fruiting pedicels | (divaricate-ascending, slightly curved), 7–18 mm. |
(spreading, sharply sigmoid), 8–15 mm. |
Fruits | didymous, irregular, highly inflated, 8–11(–18) × 10–15 mm, (papery, basal sinus shallower than the deep apical sinus; valves retaining seeds after dehiscence); replum obovate, not constricted, 1–1.8 mm, apex obtuse, as wide as or wider than fruit; ovules (4–)8(–12) per ovary; style 4–6 mm, (glabrous). |
(sessile or substipitate), ovate to oblong, not compressed at distal margins or apex, 5–9 mm; valves sparsely pubescent, trichomes appressed; ovules 4–8 per ovary; style 3–5 mm. |
Seeds | flattened, (oblong to elliptic, thin-margined or not). |
flattened. |
2n | = 16, ca. 20. |
|
Physaria dornii |
Physaria calcicola |
|
Phenology | Flowering May–Jun. | Flowering May–Jun. |
Habitat | Calcareous shale, slopes, ridges | Shale bluffs, limestone hillsides, gypseous knolls and ravines, calcareous substrates, grasslands and pinyon-juniper communities |
Elevation | 1900-2200 m (6200-7200 ft) | 1400-2100 m (4600-6900 ft) |
Distribution |
WY |
CO; NM
|
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 634. | FNA vol. 7, p. 629. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Lesquerella calcicola | |
Name authority | Lichvar: Brittonia 35: 150, figs. 1–3. (1983) | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 322. (2002) |
Web links |