Physaria rectipes |
Physaria lepidota |
|||||
---|---|---|---|---|---|---|
straight bladderpod |
Kane County twinpod |
|||||
Habit | Perennials; (loose, spreading); caudex simple or branched; densely pubescent, trichomes (subsessile), 4–6-rayed, rays furcate or bifurcate, (moderately tuberculate over arms, less so or smooth over center). | Perennials; caudex simple, (with deep roots, thickened); densely (silvery) pubescent throughout (densely covering leaves with several appressed layers), less dense on stems, trichomes (stellate-scalelike), rays fused (webbed) in proximal 1/2 or to tips, (umbonate, nearly smooth to moderately tuberculate). | ||||
Stems | few to several from base, ascending or prostrate, (arising laterally, also from within basal leaves, usually unbranched, rarely branched), 0.5–3(–6) dm. |
simple from base, erect or outer ones slightly decumbent toward base, (from below or in basal leaves, unbranched), (0.5–)0.8–1.6(–2) dm. |
||||
Basal leaves | blade narrowly oblanceolate or broadly elliptic, 1–7(–12) cm, margins entire or shallowly toothed, sometimes repand, (inner blades usually flattened in age, surfaces often gray-green, scabrous). |
(erect, petiole long, slender); blade spatulate to broadly oblanceolate, (3–)5–7(–12) cm, (base gradually tapering to petiole), margins entire, (apex rounded or obtuse). |
||||
Cauline leaves | (usually secund); blade spatulate or obovate, 1–2.5(–4.5) cm, margins entire or shallowly toothed, (flat or involute). |
blade oblanceolate, similar to basal, (base cuneate), margins entire. |
||||
Racemes | somewhat crowded (to moderately elongated in fruit, exceeding basal leaves). |
dense. |
||||
Flowers | sepals broadly elliptic or oblong, 4–7.5(–9) mm, (median pair thickened apically, cucullate); petals cuneate or obovate, 7–10(–16) mm, (tapering gradually to broad claw). |
sepals (erect), linear to linear-oblong, somewhat boat-shaped, 7–10 mm; petals (erect at anthesis), lingulate, 11–15 mm, (claw undifferentiated from blade). |
||||
Fruiting pedicels | (often divaricate-spreading and straight, or horizontal and loosely sigmoid, sometimes slightly recurved), 5–15 mm. |
(divaricate-ascending, straight or slightly curved), 10–15 mm. |
||||
Fruits | subglobose to ovoid or ellipsoid, sometimes compressed, (4–)5–7(–9) mm; valves sparsely pubescent, trichomes appressed or erect, sometimes sparsely pubescent inside; ovules (8–)12–16(–20) per ovary; style 2–7 mm. |
(purplish in age), strongly didymous, semiorbicular, highly inflated, 10–18 × 14–19 mm, (papery), basal sinus usually shallow, rarely absent, apical sinus deep, narrowly V-shaped; valves retaining seeds after dehiscence, sides flat, back rounded, margins keeled, base and apex obtuse; replum narrowly oblong to linear, as wide as or wider than fruit, base slightly narrowed, apex obtusely rounded; ovules 4 per ovary; style 3–5 mm, (slender). |
||||
Seeds | somewhat flattened. |
slightly flattened. |
||||
2n | = 10 + 2, 18, 20, ± 40. |
|||||
Physaria rectipes |
Physaria lepidota |
|||||
Phenology | Flowering May–Jul. | |||||
Habitat | Sandy soils, limey knolls, rocky hills, clay hillsides, dry ridges, weathered rocks, gravelly outwashes, stony slopes, pinyon-juniper woodlands | |||||
Elevation | 1500-2600 m (4900-8500 ft) | |||||
Distribution |
AZ; CO; NM; UT
|
UT |
||||
Discussion | As here circumscribed, Physaria rectipes remains heterogeneous and may represent more than one taxon, even after the recent removal of P. pulvinata. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 7, p. 660. | FNA vol. 7, p. 648. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Lesquerella rectipes | |||||
Name authority | (Wooton & Standley) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) | Rollins: Brittonia 33: 335, figs. 1, 2. (1981) | ||||
Web links |