Physaria lata |
Physaria hitchcockii |
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Lincoln County bladderpod |
Hitchcock's bladderpod |
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Habit | Perennials; caudex simple, (not thickened); densely pubescent, trichomes (short-stalked), several-rayed, rays distinct, furcate or bifurcate, (tuberculate, much less so over center, often nearly smooth on lower layer). | Perennials; (forming loose mats); caudex (buried), branched; densely pubescent, trichomes (short-stalked), 4–6-rayed, rays distinct, bifurcate, (rough-tuberculate). | ||||||||
Stems | simple from base, spreading or erect, (unbranched), ca. 1 dm. |
few to several from base, prostrate to erect or spreading, 0.05–0.5(–1.2) dm. |
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Basal leaves | (petiole long, slender); blade elliptic to obovate, 3–4 cm, (base narrowing to petiole), margins entire. |
(petiole and blade differentiated or not); blade spatulate to elliptic or linear or narrowly oblanceolate, 0.5–1.5(–2.5) cm, margins entire. |
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Cauline leaves | (shortly petiolate); blade elliptic to obovate, 1–2 cm, margins entire. |
similar to basal, smaller. |
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Racemes | dense. |
dense. |
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Flowers | sepals narrowly elliptic or oblong, ca. 4.5 mm, (median pair thickened apically, cucullate); petals narrowly spatulate, 7–8 mm. |
sepals narrowly lanceolate to lanceolate, 2.8–6 mm; petals (pale to deep yellow), narrowly lanceolate to oblanceolate, 5–9 mm, (claw undifferentiated from blade). |
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Fruiting pedicels | (sigmoid), 5–8 mm. |
(ascending, straight or slightly curved), 2–6 mm. |
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Fruits | (erect, substipitate), globose, ellipsoid, or obovoid, not or slightly compressed, 3–4 mm; valves sparsely pubescent, sometimes few trichomes inside; ovules 10–12 per ovary; style 3–5 mm. |
(sessile or substipitate), globose or subglobose to obovoid, not or slightly inflated, 3–6 mm, (firm, apex acute); valves (reddish in age, not retaining seeds after dehiscence), glabrous throughout; replum as wide as or wider than fruit; ovules 4–8 per ovary; style 1.7–6 mm. |
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Seeds | flattened. |
flattened. |
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Physaria lata |
Physaria hitchcockii |
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Phenology | Flowering Apr–Jul. | |||||||||
Habitat | Limestone soils and rocky places, pinyon-juniper-oak woodland and montane coniferous forest | |||||||||
Elevation | 2100-2900 m (6900-9500 ft) | |||||||||
Distribution |
NM |
NV; UT |
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Discussion | Of conservation concern. Additional research is needed to determine whether Physaria lata is a variant of P. pinetorum, with which it sometimes grows. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 3 (3 in the flora). The taxonomic treatment of Physaria hitchcockii has varied widely over the years. Molecular study (pers. obs.) has shown no direct relationship to P. tumulosa; morphologically, though, P. navajoensis and P. tumulosa appear closely related. Infraspecific taxonomy is based on the presence of a discernable petiole and whether or not the caudex is elastically elongated. The subspecies recognized here are usually geographically coherent, except that collections from the Table Cliff Plateau are more similar to subsp. hitchcockii, disjunct in Nevada, than they are to the very nearly sympatric subsp. rubicundula. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 7, p. 648. | FNA vol. 7, p. 643. | ||||||||
Parent taxa | ||||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Lesquerella lata | Lesquerella hitchcockii | ||||||||
Name authority | (Wooton & Standley) O’Kane & Al-Shehbaz: Novon 12: 325. (2002) | (Munz) O’Kane & Al-Shehbaz: Novon 12: 324. (2002) | ||||||||
Web links |